Extracting prog: 1m15.67065009s Minimizing prog: 23m59.23448339s Simplifying prog options: 0s Extracting C: 1m2.641515606s Simplifying C: 7m8.08416029s extracting reproducer from 64 programs first checking the prog from the crash report single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-connect$pppl2tp-connect$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range-close_range detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) r1 = socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) r2 = socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r3 = socket$pppl2tp(0x18, 0x1, 0x1) r4 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r5, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r6 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r7 = ioctl$KVM_CREATE_VM(r6, 0xae01, 0x0) r8 = ioctl$KVM_CREATE_VCPU(r7, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r8, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) ioctl$KVM_RUN(r8, 0xae80, 0x0) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) (async) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) r9 = socket$pppl2tp(0x18, 0x1, 0x1) r10 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r9, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r10, {0x2, 0x0, @multicast2}, 0x3}}, 0x2e) r11 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f00000000c0)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0x0, 0x7fff0006}]}) close_range(r11, 0xffffffffffffffff, 0x0) (async) close_range(r11, 0xffffffffffffffff, 0x0) program crashed: KASAN: use-after-free Read in l2tp_session_register single: successfully extracted reproducer found reproducer with 30 syscalls minimizing guilty program testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-connect$pppl2tp-connect$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER-close_range detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) r1 = socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) r2 = socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r3 = socket$pppl2tp(0x18, 0x1, 0x1) r4 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r5, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r6 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r7 = ioctl$KVM_CREATE_VM(r6, 0xae01, 0x0) r8 = ioctl$KVM_CREATE_VCPU(r7, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r8, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) ioctl$KVM_RUN(r8, 0xae80, 0x0) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) (async) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) r9 = socket$pppl2tp(0x18, 0x1, 0x1) r10 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r9, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r10, {0x2, 0x0, @multicast2}, 0x3}}, 0x2e) r11 = seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f00000000c0)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0x0, 0x7fff0006}]}) close_range(r11, 0xffffffffffffffff, 0x0) (async) program crashed: KASAN: use-after-free Read in l2tp_session_register testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-connect$pppl2tp-connect$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-seccomp$SECCOMP_SET_MODE_FILTER_LISTENER detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) r1 = socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) r2 = socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r3 = socket$pppl2tp(0x18, 0x1, 0x1) r4 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r5, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r6 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r7 = ioctl$KVM_CREATE_VM(r6, 0xae01, 0x0) r8 = ioctl$KVM_CREATE_VCPU(r7, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r8, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) ioctl$KVM_RUN(r8, 0xae80, 0x0) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) (async) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) r9 = socket$pppl2tp(0x18, 0x1, 0x1) r10 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r9, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r10, {0x2, 0x0, @multicast2}, 0x3}}, 0x2e) seccomp$SECCOMP_SET_MODE_FILTER_LISTENER(0x1, 0x0, &(0x7f00000000c0)={0x1, &(0x7f0000000100)=[{0x6, 0x0, 0x0, 0x7fff0006}]}) program crashed: KASAN: use-after-free Read in l2tp_session_register testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-connect$pppl2tp-connect$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) r1 = socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) r2 = socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r3 = socket$pppl2tp(0x18, 0x1, 0x1) r4 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r5, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r6 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r7 = ioctl$KVM_CREATE_VM(r6, 0xae01, 0x0) r8 = ioctl$KVM_CREATE_VCPU(r7, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r8, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) ioctl$KVM_RUN(r8, 0xae80, 0x0) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) (async) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) r9 = socket$pppl2tp(0x18, 0x1, 0x1) r10 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r9, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r10, {0x2, 0x0, @multicast2}, 0x3}}, 0x2e) program crashed: KASAN: use-after-free Read in l2tp_session_register testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-connect$pppl2tp-connect$pppl2tp-socket$pppl2tp-socket$inet6_udp detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) r1 = socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) r2 = socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r3 = socket$pppl2tp(0x18, 0x1, 0x1) r4 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r5, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r6 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r7 = ioctl$KVM_CREATE_VM(r6, 0xae01, 0x0) r8 = ioctl$KVM_CREATE_VCPU(r7, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r8, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) ioctl$KVM_RUN(r8, 0xae80, 0x0) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) (async) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) socket$pppl2tp(0x18, 0x1, 0x1) socket$inet6_udp(0xa, 0x2, 0x0) program crashed: KASAN: use-after-free Read in l2tp_session_register testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-connect$pppl2tp-connect$pppl2tp-socket$pppl2tp detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) r1 = socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) r2 = socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r3 = socket$pppl2tp(0x18, 0x1, 0x1) r4 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r5, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r6 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r7 = ioctl$KVM_CREATE_VM(r6, 0xae01, 0x0) r8 = ioctl$KVM_CREATE_VCPU(r7, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r8, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) ioctl$KVM_RUN(r8, 0xae80, 0x0) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) (async) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) socket$pppl2tp(0x18, 0x1, 0x1) program crashed: KASAN: use-after-free Read in l2tp_session_register testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-connect$pppl2tp-connect$pppl2tp detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) r1 = socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) r2 = socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r3 = socket$pppl2tp(0x18, 0x1, 0x1) r4 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r5, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r6 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r7 = ioctl$KVM_CREATE_VM(r6, 0xae01, 0x0) r8 = ioctl$KVM_CREATE_VCPU(r7, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r8, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) ioctl$KVM_RUN(r8, 0xae80, 0x0) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) (async) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) program crashed: KASAN: use-after-free Read in l2tp_session_register testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN-connect$pppl2tp detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) r1 = socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) r2 = socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r3 = socket$pppl2tp(0x18, 0x1, 0x1) r4 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r3, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r5, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r6 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r7 = ioctl$KVM_CREATE_VM(r6, 0xae01, 0x0) r8 = ioctl$KVM_CREATE_VCPU(r7, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r7, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r8, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) ioctl$KVM_RUN(r8, 0xae80, 0x0) connect$pppl2tp(r2, &(0x7f0000000100)=@pppol2tpv3={0x18, 0x1, {0x0, r1, {0x2, 0x0, @loopback}, 0x80004, 0x0, 0xffffffff}}, 0x2e) (async) program crashed: KASAN: use-after-free Read in l2tp_session_register testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS-ioctl$KVM_RUN detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r3, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r5 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0) r6 = ioctl$KVM_CREATE_VCPU(r5, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r5, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r5, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r6, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) ioctl$KVM_RUN(r6, 0xae80, 0x0) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_REGS detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r3, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r5 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0) r6 = ioctl$KVM_CREATE_VCPU(r5, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r5, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r5, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) ioctl$KVM_SET_REGS(r6, 0x4090ae82, &(0x7f0000000000)={[0x8, 0xfff, 0x3fffc, 0x180, 0x2, 0x0, 0xf1, 0x0, 0x7fffffffffffe, 0xffffffff81e2ac83, 0x4005, 0x8, 0x0, 0x45, 0xfffffffffffffffd, 0xbdb], 0x200000, 0x1c6017}) program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION-ioctl$KVM_SET_USER_MEMORY_REGION detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r3, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r5 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0) ioctl$KVM_CREATE_VCPU(r5, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r5, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) ioctl$KVM_SET_USER_MEMORY_REGION(r5, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet-ioctl$KVM_SET_USER_MEMORY_REGION detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r3, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r5 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0) ioctl$KVM_CREATE_VCPU(r5, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) ioctl$KVM_SET_USER_MEMORY_REGION(r5, 0x4020ae46, &(0x7f0000000180)={0x4, 0x0, 0x0, 0x2000, &(0x7f0000000000/0x2000)=nil}) (async) program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU-sendto$inet detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r3, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r5 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0) ioctl$KVM_CREATE_VCPU(r5, 0xae41, 0x0) sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x0, &(0x7f0000000340)={0x2, 0x0, @loopback}, 0x10) program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM-ioctl$KVM_CREATE_VCPU detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r3, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) r5 = ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0) ioctl$KVM_CREATE_VCPU(r5, 0xae41, 0x0) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm-ioctl$KVM_CREATE_VM detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r3, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) r4 = openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) ioctl$KVM_CREATE_VM(r4, 0xae01, 0x0) program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD-openat$kvm detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r3, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) openat$kvm(0xffffffffffffff9c, &(0x7f0000000240), 0x0, 0x0) program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX-ioctl$sock_ipv6_tunnel_SIOCGET6RD detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00', 0x0}) ioctl$sock_ipv6_tunnel_SIOCGET6RD(r0, 0x89f8, &(0x7f00000002c0)={'syztnl1\x00', &(0x7f0000000240)={'syztnl0\x00', r3, 0x7, 0x700, 0x81, 0xfffffff8, {{0xc, 0x4, 0x2, 0x7, 0x30, 0x65, 0x0, 0x7, 0x4, 0x0, @rand_addr=0x64010102, @local, {[@ssrr={0x89, 0x17, 0xa0, [@loopback, @multicast1, @rand_addr=0x64010102, @remote, @dev={0xac, 0x14, 0x14, 0x39}]}, @ra={0x94, 0x4}]}}}}}) program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program crashed: KASAN: use-after-free Write in pppol2tp_release testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-connect$pppl2tp detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) program did not crash testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program crashed: KASAN: use-after-free Write in rcu_segcblist_enqueue testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) socket$inet6_udp(0xa, 0x2, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program did not crash testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, 0xffffffffffffffff, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program did not crash testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(0xffffffffffffffff, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program did not crash testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) socket$pppl2tp(0x18, 0x1, 0x1) (async) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$inet6_udp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) socket$inet6_udp(0xa, 0x2, 0x0) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program crashed: KASAN: use-after-free Write in pppol2tp_release testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-setsockopt$inet_MCAST_MSFILTER-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000c80)=ANY=[@ANYBLOB="020000000000000002000000e0000002000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a00000002000000ffffffff00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414aa00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1e0001000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000007f000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000e000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002000000ac1414bb00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002"], 0x590) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program crashed: KASAN: use-after-free Read in rcu_cblist_dequeue testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-setsockopt$inet_MCAST_JOIN_GROUP-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$inet_udp(0x2, 0x2, 0x0) setsockopt$inet_MCAST_JOIN_GROUP(r0, 0x0, 0x2a, &(0x7f0000000180)={0x2, {{0x2, 0x0, @multicast2}}}, 0x88) r1 = socket$pppl2tp(0x18, 0x1, 0x1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r1, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program crashed: KASAN: use-after-free Read in rcu_cblist_dequeue testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet_udp-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: socket$inet_udp(0x2, 0x2, 0x0) r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @dev}, 0x2}}, 0x2e) (async) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) (async) program crashed: KASAN: use-after-free Write in pppol2tp_release testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) program crashed: KASAN: use-after-free Read in rcu_cblist_dequeue testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, 0x0, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000040)={'vlan1\x00'}) program did not crash testing program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) program crashed: KASAN: use-after-free Write in pppol2tp_release extracting C reproducer testing compiled C program (duration=32.720141247s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Write in pppol2tp_release simplifying C reproducer testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Write in pppol2tp_release testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Write in pppol2tp_release testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program did not crash testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Write in pppol2tp_release testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Write in pppol2tp_release testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Write in pppol2tp_release testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing compiled C program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) program crashed: KASAN: use-after-free Write in pppol2tp_release validation run: crashed=true testing program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) program crashed: KASAN: use-after-free Write in pppol2tp_release validation run: crashed=true testing program (duration=32.720141247s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$sock_SIOCGIFINDEX detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000000)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x0, @dev}, 0x2}}, 0x2e) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) program crashed: KASAN: use-after-free Write in pppol2tp_release validation run: crashed=true reproducing took 34m55.099485859s repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline] BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1667 [inline] BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:169 [inline] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 kernel/locking/mutex.c:288 Write of size 8 at addr ffff88812dbbb550 by task syz.2.17/372 CPU: 1 PID: 372 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Call Trace: __dump_stack+0x21/0x30 lib/dump_stack.c:88 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:427 [inline] kasan_report+0x10f/0x150 mm/kasan/report.c:444 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x249/0x2a0 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1667 [inline] __mutex_trylock_fast kernel/locking/mutex.c:169 [inline] mutex_lock+0x8e/0x1c0 kernel/locking/mutex.c:288 pppol2tp_release+0x178/0x2b0 net/l2tp/l2tp_ppp.c:442 __sock_release net/socket.c:649 [inline] sock_close+0xb8/0x200 net/socket.c:1336 __fput+0x22b/0x900 fs/file_table.c:311 ____fput+0x15/0x20 fs/file_table.c:339 task_work_run+0x127/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f3141c1fe59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff28283ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007fff28283fb0 RCX: 00007f3141c1fe59 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 0000000000006809 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b32e20000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3141ea7fac R14: 00007f3141ea7fa8 R15: 00007f3141ea7fa0 Allocated by task 372: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:433 [inline] ____kasan_kmalloc mm/kasan/common.c:512 [inline] __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:521 kasan_kmalloc include/linux/kasan.h:227 [inline] __kmalloc+0x13d/0x2c0 mm/slub.c:4436 kmalloc include/linux/slab.h:624 [inline] kzalloc include/linux/slab.h:750 [inline] l2tp_session_create+0x39/0xb60 net/l2tp/l2tp_core.c:1616 pppol2tp_connect+0xbf5/0x1640 net/l2tp/l2tp_ppp.c:772 __sys_connect_file net/socket.c:1923 [inline] __sys_connect+0x3cb/0x450 net/socket.c:1940 __do_sys_connect net/socket.c:1950 [inline] __se_sys_connect net/socket.c:1947 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:1947 x64_sys_call+0x7c/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:43 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Freed by task 372: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4a/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1728 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1754 slab_free mm/slub.c:3526 [inline] kfree+0xc4/0x270 mm/slub.c:4588 l2tp_session_free net/l2tp/l2tp_core.c:168 [inline] l2tp_session_put+0xaf/0x1a0 net/l2tp/l2tp_core.c:193 l2tp_session_delete+0x3a9/0x4a0 net/l2tp/l2tp_core.c:1589 pppol2tp_release+0x169/0x2b0 net/l2tp/l2tp_ppp.c:439 __sock_release net/socket.c:649 [inline] sock_close+0xb8/0x200 net/socket.c:1336 __fput+0x22b/0x900 fs/file_table.c:311 ____fput+0x15/0x20 fs/file_table.c:339 task_work_run+0x127/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 The buggy address belongs to the object at ffff88812dbbb400 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 336 bytes inside of 512-byte region [ffff88812dbbb400, ffff88812dbbb600) The buggy address belongs to the page: page:ffffea0004b6ee00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12dbb8 head:ffffea0004b6ee00 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=1) raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 45, ts 26635206756, free_ts 26558237527 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2607 prep_new_page+0x1c/0x110 mm/page_alloc.c:2613 get_page_from_freelist+0x2c3a/0x2cd0 mm/page_alloc.c:4487 __alloc_pages+0x1a2/0x460 mm/page_alloc.c:5824 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1937 [inline] new_slab+0xa0/0x4d0 mm/slub.c:2000 ___slab_alloc+0x3ac/0x840 mm/slub.c:3033 __slab_alloc+0x49/0x90 mm/slub.c:3120 slab_alloc_node mm/slub.c:3211 [inline] slab_alloc mm/slub.c:3255 [inline] __kmalloc+0x16a/0x2c0 mm/slub.c:4432 kmalloc include/linux/slab.h:624 [inline] kzalloc include/linux/slab.h:750 [inline] fib6_info_alloc+0x34/0xe0 net/ipv6/ip6_fib.c:155 ip6_route_info_create+0x51b/0x14d0 net/ipv6/route.c:3783 addrconf_f6i_alloc+0x19c/0x3f0 net/ipv6/route.c:4583 ipv6_add_addr+0x442/0xd90 net/ipv6/addrconf.c:1125 addrconf_add_linklocal+0x209/0x660 net/ipv6/addrconf.c:3262 addrconf_addr_gen+0x53f/0x6a0 net/ipv6/addrconf.c:3393 addrconf_dev_config net/ipv6/addrconf.c:3438 [inline] addrconf_init_auto_addrs+0x867/0xbd0 net/ipv6/addrconf.c:3517 addrconf_notify+0x95d/0xe00 net/ipv6/addrconf.c:3686 page last free stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] free_pages_prepare mm/page_alloc.c:1474 [inline] free_pcp_prepare mm/page_alloc.c:1546 [inline] free_unref_page_prepare+0x5fa/0x600 mm/page_alloc.c:3536 free_unref_page+0xae/0x540 mm/page_alloc.c:3618 free_the_page mm/page_alloc.c:805 [inline] __free_pages+0x6c/0x100 mm/page_alloc.c:5900 free_pages+0x82/0x90 mm/page_alloc.c:5911 __stack_depot_save+0x453/0x480 lib/stackdepot.c:358 kasan_save_stack mm/kasan/common.c:39 [inline] kasan_set_track+0x5b/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1728 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1754 slab_free mm/slub.c:3526 [inline] kfree+0xc4/0x270 mm/slub.c:4588 kvfree+0x35/0x40 mm/util.c:661 xt_free_table_info+0x165/0x1b0 net/netfilter/x_tables.c:1232 __ipt_unregister_table net/ipv4/netfilter/ip_tables.c:1718 [inline] ipt_unregister_table_exit+0x1b8/0x230 net/ipv4/netfilter/ip_tables.c:1803 iptable_nat_net_exit+0x1c/0x20 net/ipv4/netfilter/iptable_nat.c:143 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x58e/0xae0 net/core/net_namespace.c:599 Memory state around the buggy address: ffff88812dbbb400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88812dbbb480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88812dbbb500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88812dbbb580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88812dbbb600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ================================================================== final repro crashed as (corrupted=false): ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline] BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1667 [inline] BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:169 [inline] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 kernel/locking/mutex.c:288 Write of size 8 at addr ffff88812dbbb550 by task syz.2.17/372 CPU: 1 PID: 372 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 Call Trace: __dump_stack+0x21/0x30 lib/dump_stack.c:88 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:427 [inline] kasan_report+0x10f/0x150 mm/kasan/report.c:444 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x249/0x2a0 mm/kasan/generic.c:189 __kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic_long_try_cmpxchg_acquire include/linux/atomic/atomic-instrumented.h:1667 [inline] __mutex_trylock_fast kernel/locking/mutex.c:169 [inline] mutex_lock+0x8e/0x1c0 kernel/locking/mutex.c:288 pppol2tp_release+0x178/0x2b0 net/l2tp/l2tp_ppp.c:442 __sock_release net/socket.c:649 [inline] sock_close+0xb8/0x200 net/socket.c:1336 __fput+0x22b/0x900 fs/file_table.c:311 ____fput+0x15/0x20 fs/file_table.c:339 task_work_run+0x127/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f3141c1fe59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff28283ec8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007fff28283fb0 RCX: 00007f3141c1fe59 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 0000000000006809 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b32e20000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3141ea7fac R14: 00007f3141ea7fa8 R15: 00007f3141ea7fa0 Allocated by task 372: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:45 [inline] set_alloc_info mm/kasan/common.c:433 [inline] ____kasan_kmalloc mm/kasan/common.c:512 [inline] __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:521 kasan_kmalloc include/linux/kasan.h:227 [inline] __kmalloc+0x13d/0x2c0 mm/slub.c:4436 kmalloc include/linux/slab.h:624 [inline] kzalloc include/linux/slab.h:750 [inline] l2tp_session_create+0x39/0xb60 net/l2tp/l2tp_core.c:1616 pppol2tp_connect+0xbf5/0x1640 net/l2tp/l2tp_ppp.c:772 __sys_connect_file net/socket.c:1923 [inline] __sys_connect+0x3cb/0x450 net/socket.c:1940 __do_sys_connect net/socket.c:1950 [inline] __se_sys_connect net/socket.c:1947 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:1947 x64_sys_call+0x7c/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:43 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 Freed by task 372: kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track+0x4a/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1728 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1754 slab_free mm/slub.c:3526 [inline] kfree+0xc4/0x270 mm/slub.c:4588 l2tp_session_free net/l2tp/l2tp_core.c:168 [inline] l2tp_session_put+0xaf/0x1a0 net/l2tp/l2tp_core.c:193 l2tp_session_delete+0x3a9/0x4a0 net/l2tp/l2tp_core.c:1589 pppol2tp_release+0x169/0x2b0 net/l2tp/l2tp_ppp.c:439 __sock_release net/socket.c:649 [inline] sock_close+0xb8/0x200 net/socket.c:1336 __fput+0x22b/0x900 fs/file_table.c:311 ____fput+0x15/0x20 fs/file_table.c:339 task_work_run+0x127/0x190 kernel/task_work.c:188 tracehook_notify_resume include/linux/tracehook.h:189 [inline] exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 The buggy address belongs to the object at ffff88812dbbb400 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 336 bytes inside of 512-byte region [ffff88812dbbb400, ffff88812dbbb600) The buggy address belongs to the page: page:ffffea0004b6ee00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x12dbb8 head:ffffea0004b6ee00 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head|zone=1) raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected page_owner tracks the page as allocated page last allocated via order 2, migratetype Unmovable, gfp_mask 0x1d20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC|__GFP_HARDWALL), pid 45, ts 26635206756, free_ts 26558237527 set_page_owner include/linux/page_owner.h:33 [inline] post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2607 prep_new_page+0x1c/0x110 mm/page_alloc.c:2613 get_page_from_freelist+0x2c3a/0x2cd0 mm/page_alloc.c:4487 __alloc_pages+0x1a2/0x460 mm/page_alloc.c:5824 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1937 [inline] new_slab+0xa0/0x4d0 mm/slub.c:2000 ___slab_alloc+0x3ac/0x840 mm/slub.c:3033 __slab_alloc+0x49/0x90 mm/slub.c:3120 slab_alloc_node mm/slub.c:3211 [inline] slab_alloc mm/slub.c:3255 [inline] __kmalloc+0x16a/0x2c0 mm/slub.c:4432 kmalloc include/linux/slab.h:624 [inline] kzalloc include/linux/slab.h:750 [inline] fib6_info_alloc+0x34/0xe0 net/ipv6/ip6_fib.c:155 ip6_route_info_create+0x51b/0x14d0 net/ipv6/route.c:3783 addrconf_f6i_alloc+0x19c/0x3f0 net/ipv6/route.c:4583 ipv6_add_addr+0x442/0xd90 net/ipv6/addrconf.c:1125 addrconf_add_linklocal+0x209/0x660 net/ipv6/addrconf.c:3262 addrconf_addr_gen+0x53f/0x6a0 net/ipv6/addrconf.c:3393 addrconf_dev_config net/ipv6/addrconf.c:3438 [inline] addrconf_init_auto_addrs+0x867/0xbd0 net/ipv6/addrconf.c:3517 addrconf_notify+0x95d/0xe00 net/ipv6/addrconf.c:3686 page last free stack trace: reset_page_owner include/linux/page_owner.h:26 [inline] free_pages_prepare mm/page_alloc.c:1474 [inline] free_pcp_prepare mm/page_alloc.c:1546 [inline] free_unref_page_prepare+0x5fa/0x600 mm/page_alloc.c:3536 free_unref_page+0xae/0x540 mm/page_alloc.c:3618 free_the_page mm/page_alloc.c:805 [inline] __free_pages+0x6c/0x100 mm/page_alloc.c:5900 free_pages+0x82/0x90 mm/page_alloc.c:5911 __stack_depot_save+0x453/0x480 lib/stackdepot.c:358 kasan_save_stack mm/kasan/common.c:39 [inline] kasan_set_track+0x5b/0x70 mm/kasan/common.c:45 kasan_set_free_info+0x23/0x40 mm/kasan/generic.c:370 ____kasan_slab_free+0x125/0x160 mm/kasan/common.c:365 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:373 kasan_slab_free include/linux/kasan.h:193 [inline] slab_free_hook mm/slub.c:1728 [inline] slab_free_freelist_hook+0xc2/0x190 mm/slub.c:1754 slab_free mm/slub.c:3526 [inline] kfree+0xc4/0x270 mm/slub.c:4588 kvfree+0x35/0x40 mm/util.c:661 xt_free_table_info+0x165/0x1b0 net/netfilter/x_tables.c:1232 __ipt_unregister_table net/ipv4/netfilter/ip_tables.c:1718 [inline] ipt_unregister_table_exit+0x1b8/0x230 net/ipv4/netfilter/ip_tables.c:1803 iptable_nat_net_exit+0x1c/0x20 net/ipv4/netfilter/iptable_nat.c:143 ops_exit_list net/core/net_namespace.c:172 [inline] cleanup_net+0x58e/0xae0 net/core/net_namespace.c:599 Memory state around the buggy address: ffff88812dbbb400: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88812dbbb480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88812dbbb500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88812dbbb580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88812dbbb600: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================