Extracting prog: 29.193362684s Minimizing prog: 12m49.033717418s Simplifying prog options: 0s Extracting C: 43.863791978s Simplifying C: 3m4.148098425s extracting reproducer from 24 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-syz_open_procfs-read$FUSE-socket$inet6_udp-connect$pppl2tp-bind$inet6-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL-ioctl$BTRFS_IOC_GET_SUBVOL_INFO-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL-syz_emit_ethernet detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r2) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r3, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) r4 = syz_open_procfs(r1, &(0x7f0000000000)='maps\x00') read$FUSE(r4, &(0x7f0000005900)={0x2020}, 0x2020) r5 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r5, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) bind$inet6(r5, &(0x7f0000000000)={0xa, 0xe22, 0x0, @empty}, 0x1c) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) ioctl$BTRFS_IOC_GET_SUBVOL_INFO(r0, 0x81f8943c, &(0x7f0000000380)={0x0, ""/256, 0x0, 0x0, 0x0, 0x0, ""/16, ""/16, ""/16, 0x0}) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r5, 0xc0c89425, &(0x7f0000000580)={"e7aa18fc1b3aaf5d047a2f81cd15075f", r6, r7, {0x2, 0x9}, {0x4, 0x2}, 0x7, [0xfffffffffffffff8, 0x1, 0xfffffffffffffff7, 0xbac6, 0x9, 0x5, 0x4, 0x8d, 0x2ee01df2, 0x4, 0x3, 0x8, 0x3, 0x6, 0x8, 0x7]}) syz_emit_ethernet(0x4c, &(0x7f0000000300)={@multicast, @local, @void, {@ipv6={0x86dd, @udp={0x0, 0x6, "010100", 0x16, 0x11, 0xff, @remote, @local, {[], {0x0, 0xe22, 0x16, 0x0, @gue={{0x2, 0x0, 0x0, 0x3, 0x0, @val=0x8000000}, '\x00\x00\x00\x00\x00\x00'}}}}}}}, 0x0) program crashed: KASAN: use-after-free Read in l2tp_tunnel_get_session single: successfully extracted reproducer found reproducer with 16 syscalls minimizing guilty program 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-syz_open_procfs-read$FUSE-socket$inet6_udp-connect$pppl2tp-bind$inet6-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL-ioctl$BTRFS_IOC_GET_SUBVOL_INFO-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r2) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r3, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) r4 = syz_open_procfs(r1, &(0x7f0000000000)='maps\x00') read$FUSE(r4, &(0x7f0000005900)={0x2020}, 0x2020) r5 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r5, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) bind$inet6(r5, &(0x7f0000000000)={0xa, 0xe22, 0x0, @empty}, 0x1c) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) ioctl$BTRFS_IOC_GET_SUBVOL_INFO(r0, 0x81f8943c, &(0x7f0000000380)={0x0, ""/256, 0x0, 0x0, 0x0, 0x0, ""/16, ""/16, ""/16, 0x0}) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r5, 0xc0c89425, &(0x7f0000000580)={"e7aa18fc1b3aaf5d047a2f81cd15075f", r6, r7, {0x2, 0x9}, {0x4, 0x2}, 0x7, [0xfffffffffffffff8, 0x1, 0xfffffffffffffff7, 0xbac6, 0x9, 0x5, 0x4, 0x8d, 0x2ee01df2, 0x4, 0x3, 0x8, 0x3, 0x6, 0x8, 0x7]}) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-syz_open_procfs-read$FUSE-socket$inet6_udp-connect$pppl2tp-bind$inet6-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL-ioctl$BTRFS_IOC_GET_SUBVOL_INFO detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r2) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r3, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) r4 = syz_open_procfs(r1, &(0x7f0000000000)='maps\x00') read$FUSE(r4, &(0x7f0000005900)={0x2020}, 0x2020) r5 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r5, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) bind$inet6(r5, &(0x7f0000000000)={0xa, 0xe22, 0x0, @empty}, 0x1c) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) ioctl$BTRFS_IOC_GET_SUBVOL_INFO(r0, 0x81f8943c, &(0x7f0000000380)) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-syz_open_procfs-read$FUSE-socket$inet6_udp-connect$pppl2tp-bind$inet6-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r2) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r3, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) r4 = syz_open_procfs(r1, &(0x7f0000000000)='maps\x00') read$FUSE(r4, &(0x7f0000005900)={0x2020}, 0x2020) r5 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r5, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) bind$inet6(r5, &(0x7f0000000000)={0xa, 0xe22, 0x0, @empty}, 0x1c) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Write in pppol2tp_release 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-syz_open_procfs-read$FUSE-socket$inet6_udp-connect$pppl2tp-bind$inet6 detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r2) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r3, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) r4 = syz_open_procfs(r1, &(0x7f0000000000)='maps\x00') read$FUSE(r4, &(0x7f0000005900)={0x2020}, 0x2020) r5 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r5, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) bind$inet6(r5, &(0x7f0000000000)={0xa, 0xe22, 0x0, @empty}, 0x1c) program did not crash 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-syz_open_procfs-read$FUSE-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r2) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r3, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) r4 = syz_open_procfs(r1, &(0x7f0000000000)='maps\x00') read$FUSE(r4, &(0x7f0000005900)={0x2020}, 0x2020) r5 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r5, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Write in pppol2tp_release 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-syz_open_procfs-read$FUSE-socket$inet6_udp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r2) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r3, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) r4 = syz_open_procfs(r1, &(0x7f0000000000)='maps\x00') read$FUSE(r4, &(0x7f0000005900)={0x2020}, 0x2020) socket$inet6_udp(0xa, 0x2, 0x0) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program did not crash 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-syz_open_procfs-read$FUSE-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r2) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r3, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) r4 = syz_open_procfs(r1, &(0x7f0000000000)='maps\x00') read$FUSE(r4, &(0x7f0000005900)={0x2020}, 0x2020) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, 0xffffffffffffffff, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program did not crash 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-syz_open_procfs-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r2 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r2) r3 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r3, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) syz_open_procfs(r1, &(0x7f0000000000)='maps\x00') r4 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r4, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Write in pppol2tp_release 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-mount-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r1) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r2, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) mount(0x0, &(0x7f0000000080)='.\x00', &(0x7f0000000000)='proc\x00', 0x0, 0x0) r3 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r3, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Read in rcu_cblist_dequeue 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-bpf$BPF_PROG_TEST_RUN-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r1) r2 = bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="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"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) bpf$BPF_PROG_TEST_RUN(0xa, &(0x7f00000003c0)={r2, 0x702, 0x59, 0x0, &(0x7f0000000040)="e460334400005000eb00c15286ddea7b03c6b8564a1ef1cef05bdaa5958a2cb1087dad203447dba73666d209bd02246fe3e0f3be78a37ba851da39f7594a66e7ab3666ee250fa7d5595238df44f22828d26e2591592d02f875", 0x0, 0xfffffff7, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x50) r3 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r3, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Write in pppol2tp_release 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-bpf$PROG_LOAD-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r1) bpf$PROG_LOAD(0x5, &(0x7f0000000200)={0x4, 0xe, &(0x7f00000015c0)=ANY=[@ANYBLOB="b7020000b0ffffffbfa30000000000000703000000feffff7a0af0ff8f00000079a4f0ff00000000b7060000ffffffff2d6405000000000065040400010001010404000011000000b7030000000000006a0a00fe000000008500000032000000b700000001000000950000000000000075cdc4b57b0c65752a3ad50000007ddd0000cb450063dedba767ade51f7f1f66acd19100002000000000000000ff7f0000b52f17cee19d0001000000000000000000cb04fcbb4e4d0b9bafe3ba431351a58a885ba9918d37b056b9bbd11b6b9f6cf7db6d574620260000000000008062d77e85cef4a2ab938f65aac33c4d620de2c9b7dc10d7d313f9f57606b83b994fc4051ade12f41deff6df6a936b4ec3827c739bb39aad16cc75fe369258673b5df11cc2afb53611cc32a790bc0b80e80eae8f5e64be2c9d2d29db3d36dd0cf8f79a015c7bd3f15aa6aadbeab2a01685108e61aa00000000000000000000000000c67c6c6a06e828e5216f601b19db1af1b5d356d0f062137d866d11be4ba3f0151fdbbd4e97d62ecc645e143a60f10800000000000000826151e3b42bcae95239ef5ca2a730a00c87c493db0300e63fda97a296820000000001000000eecc952a3fd2c46f3c1cde71a19d1a2982492a210e00d2bfea3b8d188df2eff8d56aaae7d32a2e180022537395019f02ec4b85f6aad7faca088de9b26797a8446b16c28d85f225992dbdd5bb01ba51508951c7a7d6ca0916c3a12912715649c2b1c7192a4251b59d378d3f00000000000000665c8b7e89eddfc3783f6c9129a7c5f8ee5f50579e2f638f7eb12f63be72a3d81ab324d6e417b1c2cbfdcada0a16e31790e26cf19588a7e0496ee2782224cf30f810da86cf1a3204f4c9404f5d7321a4fefc4d1c9139ca4b65b99909950000006b42077ca60fdecb2717e21f8f187b1866108b6e8c71e2603217606637ece1fa89917e131f4034a8383e99c3568fd04201b37cd92ca6ebf94a2d8310f7032775cfd75652f87b039d5430b3c6643e9146d2478ce31344b554aca7670000000000000010c65608fda6ed5d08e7a796042aa127d874105787d0347aa37801faff5b9050803a19ff6205aa5c263e407a2f7de56f7a0000e094fa4e3f05528caab5a430c08dd810bc97204b767dd969721a26aa740000000000bc433fe2d0a6ef2a8a91cd3cb305aa80dadef8b0caca780000000000000000863e21db415a222bb1a7ab94bfe4a74157d794f9d0430c2c0eb563350559829865a3dd08fb31bd0801e09aa3ee45e61a56fc83076451cff7632e49a41eadb5044a0d5f73d6932161ae5e9ce218a35cd8e7b747887b1a74798982d0b492c3f0ff53189d80733eb04f8124877b648ff438f7d66c7efcc09a8f3330b6c22d14e80db8e5608bdeab9388b758a15f4ce70390c214bc6838798f5b9b0b500d4e8b5174f329b8501c6feb7a6982bcea74a0f2ced7fa2059234a8d10b7f0597151d5c9067d57d85f4ae933eaf5174ba122f3f702ef8695578d3c08562c9fc185f0f65d11b4c58ae52500cbe99cde3758a5cbe6093dd328ac820e2de309d25a324647aadffcecf0f3bbaeda7af4436d9ffbce1b240a2f5e346eba8812e6329e01b087bde7da4a6448f478102e90c8134f531de08d4cf4f6f35b15a202544c0ced0c1715fd3a90099f785a13a2412bedba2981dd22bd9d736c00000000000000000000000000000000eb6fec8d7d2f77f4d470a9caa5b1bfc00cd1d40830ac35f229f8ffe1c02a63d3c2d9"], &(0x7f0000000340)='GPL\x00', 0x0, 0x0, 0x0, 0x41000, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000)={0x2}, 0x8, 0x10, &(0x7f0000000100), 0x10}, 0x23) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Read in rcu_cblist_dequeue 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$pppl2tp-syz_clone-syz_open_procfs-fchdir-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r1 = syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') fchdir(r1) r2 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session 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$pppl2tp-syz_clone-syz_open_procfs-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) syz_open_procfs(0x0, &(0x7f0000000480)='task\x00') r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session 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$pppl2tp-syz_clone-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) syz_clone(0x11, 0x0, 0x0, 0x0, 0x0, 0x0) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session 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$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program crashed: KASAN: use-after-free Write in pppol2tp_release 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$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(0xffffffffffffffff, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r0, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(0xffffffffffffffff, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program did not crash 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$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, 0x0, 0x0) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, &(0x7f0000000040)={"7940e0f8d8bfa0e71e8eae3ce902c5e9", 0x0, 0x0, {0x6, 0x7ff}, {0x81}, 0x6, [0x3, 0xffff, 0x0, 0x45cc3b7d, 0x1, 0x1, 0x9, 0x2, 0x3ff, 0x0, 0x27ba, 0x7f, 0x0, 0x80000000, 0x7, 0x6e0d]}) program did not crash 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$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, 0x0) program crashed: KASAN: use-after-free Write in pppol2tp_release extracting C reproducer testing compiled C 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$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL program crashed: KASAN: use-after-free Write in pppol2tp_release simplifying C reproducer testing compiled C program (duration=30s, {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$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL program crashed: KASAN: use-after-free Write in pppol2tp_release testing compiled C program (duration=30s, {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$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL program crashed: KASAN: use-after-free Write in pppol2tp_release testing compiled C program (duration=30s, {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$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing compiled C program (duration=30s, {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:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL program did not crash testing compiled C program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session testing compiled C program (duration=30s, {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:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL program did not crash testing program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, 0x0) program crashed: KASAN: use-after-free Write in pppol2tp_release validation run: crashed=true testing program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, 0x0) program crashed: KASAN: use-after-free Read in rcu_cblist_dequeue validation run: crashed=true testing program (duration=30s, {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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL detailed listing: executing program 0: r0 = socket$pppl2tp(0x18, 0x1, 0x1) r1 = socket$inet6_udp(0xa, 0x2, 0x0) connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e23, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) ioctl$BTRFS_IOC_SET_RECEIVED_SUBVOL(r0, 0xc0c89425, 0x0) program crashed: KASAN: use-after-free Write in pppol2tp_release validation run: crashed=true reproducing took 18m36.748807785s 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 atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline] BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline] BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:173 [inline] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 kernel/locking/mutex.c:298 Write of size 8 at addr ffff88810f488150 by task syz.2.17/399 CPU: 0 PID: 399 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0x100/0x140 mm/kasan/report.c:452 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] atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline] atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline] __mutex_trylock_fast kernel/locking/mutex.c:173 [inline] mutex_lock+0x85/0xf0 kernel/locking/mutex.c:298 pppol2tp_release+0x178/0x2b0 net/l2tp/l2tp_ppp.c:442 __sock_release net/socket.c:597 [inline] sock_close+0xb8/0x200 net/socket.c:1287 __fput+0x2dc/0x730 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x127/0x190 kernel/task_work.c:189 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f3e690c1159 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:00007fff3b2cf578 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007fff3b2cf660 RCX: 00007f3e690c1159 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 0000000000006913 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b32b20000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3e69348fac R14: 00007f3e69348fa8 R15: 00007f3e69348fa0 Allocated by task 399: 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:430 [inline] ____kasan_kmalloc mm/kasan/common.c:509 [inline] __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:518 kasan_kmalloc include/linux/kasan.h:254 [inline] __kmalloc+0x19f/0x330 mm/slub.c:4038 kmalloc include/linux/slab.h:560 [inline] kzalloc include/linux/slab.h:667 [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:1867 [inline] __sys_connect+0x3ce/0x450 net/socket.c:1884 __do_sys_connect net/socket.c:1894 [inline] __se_sys_connect net/socket.c:1891 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:1891 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb Freed by task 399: 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:362 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370 kasan_slab_free include/linux/kasan.h:220 [inline] slab_free_hook mm/slub.c:1600 [inline] slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1626 slab_free mm/slub.c:3208 [inline] kfree+0xc0/0x270 mm/slub.c:4196 l2tp_session_free net/l2tp/l2tp_core.c:168 [inline] l2tp_session_put+0xb2/0x1a0 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:597 [inline] sock_close+0xb8/0x200 net/socket.c:1287 __fput+0x2dc/0x730 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x127/0x190 kernel/task_work.c:189 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb The buggy address belongs to the object at ffff88810f488000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 336 bytes inside of 512-byte region [ffff88810f488000, ffff88810f488200) The buggy address belongs to the page: page:ffffea00043d2200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10f488 head:ffffea00043d2200 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 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 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 399, ts 26922462226, free_ts 26910367733 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page+0x176/0x190 mm/page_alloc.c:2462 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1813 [inline] new_slab+0x84/0x3f0 mm/slub.c:1874 new_slab_objects mm/slub.c:2632 [inline] ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796 __slab_alloc+0x63/0xa0 mm/slub.c:2836 slab_alloc_node mm/slub.c:2918 [inline] slab_alloc mm/slub.c:2960 [inline] __kmalloc+0x1f9/0x330 mm/slub.c:4034 kmalloc include/linux/slab.h:560 [inline] kzalloc include/linux/slab.h:667 [inline] neigh_alloc net/core/neighbour.c:439 [inline] ___neigh_create+0x6ec/0x1a70 net/core/neighbour.c:592 __neigh_create+0x31/0x40 net/core/neighbour.c:680 ip6_finish_output2+0x8fe/0x1540 net/ipv6/ip6_output.c:129 __ip6_finish_output+0x5fd/0x790 net/ipv6/ip6_output.c:203 ip6_finish_output+0x33/0x1e0 net/ipv6/ip6_output.c:213 NF_HOOK_COND include/linux/netfilter.h:288 [inline] ip6_output+0x1fa/0x420 net/ipv6/ip6_output.c:236 dst_output include/net/dst.h:451 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] mld_sendpack+0x61e/0xb00 net/ipv6/mcast.c:1676 mld_send_cr net/ipv6/mcast.c:1972 [inline] mld_ifc_timer_expire+0x862/0xc60 net/ipv6/mcast.c:2471 call_timer_fn+0x38/0x290 kernel/time/timer.c:1450 page last free stack trace: reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1349 [inline] __free_pages_ok+0x80b/0x830 mm/page_alloc.c:1629 free_the_page mm/page_alloc.c:5445 [inline] __free_pages+0xd8/0x390 mm/page_alloc.c:5454 kfree+0x1e4/0x270 mm/slub.c:4193 tipc_nametbl_stop+0x120b/0x1270 net/tipc/name_table.c:917 tipc_exit_net+0x99/0x150 net/tipc/core.c:118 ops_exit_list net/core/net_namespace.c:185 [inline] cleanup_net+0x589/0xb80 net/core/net_namespace.c:609 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301 worker_thread+0xa8e/0x13c0 kernel/workqueue.c:2447 kthread+0x324/0x3b0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Memory state around the buggy address: ffff88810f488000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88810f488080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88810f488100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88810f488180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88810f488200: 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 atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline] BUG: KASAN: use-after-free in atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline] BUG: KASAN: use-after-free in __mutex_trylock_fast kernel/locking/mutex.c:173 [inline] BUG: KASAN: use-after-free in mutex_lock+0x85/0xf0 kernel/locking/mutex.c:298 Write of size 8 at addr ffff88810f488150 by task syz.2.17/399 CPU: 0 PID: 399 Comm: syz.2.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 Call Trace: __dump_stack+0x21/0x24 lib/dump_stack.c:77 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248 __kasan_report mm/kasan/report.c:435 [inline] kasan_report+0x100/0x140 mm/kasan/report.c:452 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] atomic64_try_cmpxchg_acquire include/asm-generic/atomic-instrumented.h:1515 [inline] atomic_long_try_cmpxchg_acquire include/asm-generic/atomic-long.h:443 [inline] __mutex_trylock_fast kernel/locking/mutex.c:173 [inline] mutex_lock+0x85/0xf0 kernel/locking/mutex.c:298 pppol2tp_release+0x178/0x2b0 net/l2tp/l2tp_ppp.c:442 __sock_release net/socket.c:597 [inline] sock_close+0xb8/0x200 net/socket.c:1287 __fput+0x2dc/0x730 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x127/0x190 kernel/task_work.c:189 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f3e690c1159 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:00007fff3b2cf578 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 RAX: 0000000000000000 RBX: 00007fff3b2cf660 RCX: 00007f3e690c1159 RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 RBP: 0000000000006913 R08: 0000000000000001 R09: 0000000000000000 R10: 0000001b32b20000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3e69348fac R14: 00007f3e69348fa8 R15: 00007f3e69348fa0 Allocated by task 399: 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:430 [inline] ____kasan_kmalloc mm/kasan/common.c:509 [inline] __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:518 kasan_kmalloc include/linux/kasan.h:254 [inline] __kmalloc+0x19f/0x330 mm/slub.c:4038 kmalloc include/linux/slab.h:560 [inline] kzalloc include/linux/slab.h:667 [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:1867 [inline] __sys_connect+0x3ce/0x450 net/socket.c:1884 __do_sys_connect net/socket.c:1894 [inline] __se_sys_connect net/socket.c:1891 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:1891 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb Freed by task 399: 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:362 __kasan_slab_free+0x11/0x20 mm/kasan/common.c:370 kasan_slab_free include/linux/kasan.h:220 [inline] slab_free_hook mm/slub.c:1600 [inline] slab_free_freelist_hook+0xc5/0x190 mm/slub.c:1626 slab_free mm/slub.c:3208 [inline] kfree+0xc0/0x270 mm/slub.c:4196 l2tp_session_free net/l2tp/l2tp_core.c:168 [inline] l2tp_session_put+0xb2/0x1a0 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:597 [inline] sock_close+0xb8/0x200 net/socket.c:1287 __fput+0x2dc/0x730 fs/file_table.c:281 ____fput+0x15/0x20 fs/file_table.c:314 task_work_run+0x127/0x190 kernel/task_work.c:189 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x61/0xcb The buggy address belongs to the object at ffff88810f488000 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 336 bytes inside of 512-byte region [ffff88810f488000, ffff88810f488200) The buggy address belongs to the page: page:ffffea00043d2200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10f488 head:ffffea00043d2200 order:2 compound_mapcount:0 compound_pincount:0 flags: 0x4000000000010200(slab|head) raw: 4000000000010200 dead000000000100 dead000000000122 ffff888100043080 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 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 399, ts 26922462226, free_ts 26910367733 set_page_owner include/linux/page_owner.h:35 [inline] post_alloc_hook mm/page_alloc.c:2456 [inline] prep_new_page+0x176/0x190 mm/page_alloc.c:2462 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384 alloc_slab_page mm/slub.c:-1 [inline] allocate_slab mm/slub.c:1813 [inline] new_slab+0x84/0x3f0 mm/slub.c:1874 new_slab_objects mm/slub.c:2632 [inline] ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796 __slab_alloc+0x63/0xa0 mm/slub.c:2836 slab_alloc_node mm/slub.c:2918 [inline] slab_alloc mm/slub.c:2960 [inline] __kmalloc+0x1f9/0x330 mm/slub.c:4034 kmalloc include/linux/slab.h:560 [inline] kzalloc include/linux/slab.h:667 [inline] neigh_alloc net/core/neighbour.c:439 [inline] ___neigh_create+0x6ec/0x1a70 net/core/neighbour.c:592 __neigh_create+0x31/0x40 net/core/neighbour.c:680 ip6_finish_output2+0x8fe/0x1540 net/ipv6/ip6_output.c:129 __ip6_finish_output+0x5fd/0x790 net/ipv6/ip6_output.c:203 ip6_finish_output+0x33/0x1e0 net/ipv6/ip6_output.c:213 NF_HOOK_COND include/linux/netfilter.h:288 [inline] ip6_output+0x1fa/0x420 net/ipv6/ip6_output.c:236 dst_output include/net/dst.h:451 [inline] NF_HOOK include/linux/netfilter.h:299 [inline] mld_sendpack+0x61e/0xb00 net/ipv6/mcast.c:1676 mld_send_cr net/ipv6/mcast.c:1972 [inline] mld_ifc_timer_expire+0x862/0xc60 net/ipv6/mcast.c:2471 call_timer_fn+0x38/0x290 kernel/time/timer.c:1450 page last free stack trace: reset_page_owner include/linux/page_owner.h:28 [inline] free_pages_prepare mm/page_alloc.c:1349 [inline] __free_pages_ok+0x80b/0x830 mm/page_alloc.c:1629 free_the_page mm/page_alloc.c:5445 [inline] __free_pages+0xd8/0x390 mm/page_alloc.c:5454 kfree+0x1e4/0x270 mm/slub.c:4193 tipc_nametbl_stop+0x120b/0x1270 net/tipc/name_table.c:917 tipc_exit_net+0x99/0x150 net/tipc/core.c:118 ops_exit_list net/core/net_namespace.c:185 [inline] cleanup_net+0x589/0xb80 net/core/net_namespace.c:609 process_one_work+0x6fd/0xbc0 kernel/workqueue.c:2301 worker_thread+0xa8e/0x13c0 kernel/workqueue.c:2447 kthread+0x324/0x3b0 kernel/kthread.c:313 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298 Memory state around the buggy address: ffff88810f488000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88810f488080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >ffff88810f488100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ ffff88810f488180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ffff88810f488200: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc ==================================================================