Extracting prog: 1m10.795992359s
Minimizing prog: 29m18.875856899s
Simplifying prog options: 0s
Extracting C: 1m8.670265693s
Simplifying C: 3m23.922230748s


extracting reproducer from 33 programs
testing a last program of every proc
single: executing 7 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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4-open-bpf$PROG_LOAD-openat-pwritev2-openat-fcntl$lock-openat-copy_file_range-ioctl$EXT4_IOC_MOVE_EXT
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)
open(&(0x7f0000000280)='./file1\x00', 0x4827e, 0x20) (async)
bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x18, 0xe, &(0x7f0000000200)=ANY=[@ANYBLOB="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"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0xfffffffffffffd00}, 0x48) (async)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x0)
pwritev2(r9, &(0x7f0000000100)=[{&(0x7f00000000c0)="ff", 0x1}], 0x1, 0x25412, 0x4, 0x0) (async)
r10 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x42, 0x184)
fcntl$lock(r10, 0x6, &(0x7f00000002c0)={0x1, 0x0, 0xff34, 0x5}) (async)
r11 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x58)
copy_file_range(r11, 0x0, r11, 0x0, 0x863, 0x0) (async)
ioctl$EXT4_IOC_MOVE_EXT(r9, 0x40305829, &(0x7f0000000140)={0x17c04, 0xffffffffffffffff, 0x60, 0x973f, 0x81, 0x4})

program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
single: successfully extracted reproducer
found reproducer with 29 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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4-open-bpf$PROG_LOAD-openat-pwritev2-openat-fcntl$lock-openat-copy_file_range
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)
open(&(0x7f0000000280)='./file1\x00', 0x4827e, 0x20) (async)
bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x18, 0xe, &(0x7f0000000200)=ANY=[@ANYBLOB="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"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0xfffffffffffffd00}, 0x48) (async)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x0)
pwritev2(r9, &(0x7f0000000100)=[{&(0x7f00000000c0)="ff", 0x1}], 0x1, 0x25412, 0x4, 0x0) (async)
r10 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x42, 0x184)
fcntl$lock(r10, 0x6, &(0x7f00000002c0)={0x1, 0x0, 0xff34, 0x5}) (async)
r11 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x58)
copy_file_range(r11, 0x0, r11, 0x0, 0x863, 0x0) (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4-open-bpf$PROG_LOAD-openat-pwritev2-openat-fcntl$lock-openat
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)
open(&(0x7f0000000280)='./file1\x00', 0x4827e, 0x20) (async)
bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x18, 0xe, &(0x7f0000000200)=ANY=[@ANYBLOB="b7000000010080ffbfa30000000000000703000030feffff720af0fff8ffffff71a4f0ff000000001c040000000000006e400300000000006504000001ed000079110000000000006c440000000000007a0ab0fe000000007b13000000000000c500f9ffffff00009500000000000000023bc065b7a379d17cf9333379fc9e94af05000000f1a864a710aad58db6a693002e7f3be361917adef6ee1c8a2a4f8ef1e50becb19bc461e91a715bc5181554a090f32050e436fe275daf51efd601b6bf01c8e8b1b526375ec4dd6fcd82e4fee5bef7af9aa0d7d600c095199fe3ff3128c4e599b0eaebbdbd732c9cc00e72363e4a8f6456e2cc21557c0afc646cb7798b3e6440c2fbdb00a3e35208b0bb0d2cd829e654400e2438ec649dc74a28610643a98d9ec21ead2ed51b104d0800af25b845d8a7925c3109b151b8b9f75dd08d123deda88c658d42ecbf28bf7076c15b463bebc72f526d8e8afcb913466aaa7f6df70252e79166d858fcd0e06dd31af9612f2460d0b11008e59a5923906f88b53987ad1714e72ba7a54f0c33d390dd65be2467b373eafd9aa58f2077184b6a89adaf17b0a6041bdef728d236619074d6ebdf098bc908f523d228a40f9411fe7226a40409d6e37c4f46756d31cb467600ade70063e5291569b33d21dae356e1c5da18ec0ae564162a27afea62d84f3a10746443d64364f56e24e6d2105bd901204a1deeed4155617572652d950ad31928b0b0c3dc2869f478341d02d0f5ad94b081fcd507acb4b93d000000225d85ae49cee383dc5049076b98fb6853ab39a21514da60d2ae20cfb91d6a49964757cdf538f9ce2bdb1ab062cd54e67011d355d84ce97bb0c6b4a595e487efbb2d710b651f898ba749e40bc6980fe78683ac5c0c31030699ddd71063be9261b2e1aab1675b34a220488c126aeef5f510a8f1aded94a129e4aec6ffc3a15d96c2ea3e2e04cfe0e669e51731b2875353193f82ade69d0540059fe6c7fe7cd86975023cb08cc7596566d674e425da5e87e59602a9f6590521d31d3804b3e0a1053abdc31282dfb15eb6841bb64a1b304502dda787343ce3c953992e4a982f3c48153baae244e7bf37548c7f1a4cad2422ee965a38f7defbd2960242b104e20dc2d9b0c35608d402cca7cbf53ddd9069bd50b994fda7a9de44022a579dfc0229cc0dc98816106dec28eaeb883418f562ae00003ef1b938b26d0aa96d10f172c0374d6eed82641687f3b3a70bfe9b4a9c5a90ff59d54d1f92ecc4e95dd2d18383113c039862198899b212c5538a294270a1ad10c80fef7c24c87afce829ab959f6074ab2a4009b9e5f07ab513cdc6c0e57fb1c1ca571380d7b4ead35a655e0b4a26b702396df7e0cbe02b6e4114f244a94aa8e98b0b263f0083bf93f05beb72f0861f7580e69db384ac7eeedcf2ba1a9508f9d6aba5823a34a9f1ffa968eacea75caf822a7a63ba34015ea5aacb1188883ad2a3b1832371fe5bc621426d1ed0a4a9b702cc1b6912a1e717d29135753208165b9cdbae2ed9dc7358f0ebadde0b728fe2bc37037f27f2f9a6a8346962a350845ffa0d829e4f79adc287906943408e05000000d03aac93df8866fb010aec0e92bed1fe39af169d2a466f0db6f3d9436a7d0a874c74b777df005c55fc30511d00000000c85265b2bd83d64a5328080000000000000000007baa5b6a682b50f0937f778af083e055f6138a757ebd0ed91114a6b244f9acf41ac5d73a008364e0606a594817031fc2f52c8785fe0721719b3d654026c6ea08b83b123145ab5703dad844ceb201ddeb6dc5f6a9037d2283c42efc54fa84323a56edbd287ebad2f35c35d91f3c62a0ca74836a640224de85f2b4a5fee500bbc584328a6a7a4628c4378c9b71dff64075b74a6520adb187b40d2cccbcb08c0634ee74658d3e23bf2871ed2aa2a05e319374511c8b0bf1b69d2b3782b3f481c314e7bd4615dbbf24c06ac95bd639e68d0e6aa7f0d07bf69193365f803f0144cc37236ea133c2255b0613bf8ba1d538e06c2f11e8d70053b712084fd0e313de9bb19266e49a3a2190cb039c6f89610acd896319b9c8d1b8aac2eaa5a4f8be7419a09e3fb5be3be2fcdadd2299839cc40e0400000000000000e7a0babcb0be672110268a34dad364fddee69e564119cebb6940c6356ff83ca527c573d700000000000000c6299263e6d9097f225de969485bce3d7dc471c0669bb6a467cf0de54dfcc1857048fe22a19dbb1b3cb9babaa839f1f6e817a62d95a5b971ff96a5c66c338c6f2a2da46e4519f40761402e9c81013d76c7152c95ba5efa24ce1930f23a2277f057ffb6b0144f3b434a2adc456ef4d2fbdf7c6238c2bb00ffcf2d23d68cb9b027f3b225ec4e09b089f7956b66c5692b46ea03abb6a404c8ccceaa4ba4161409fcb54b86eaca26b263abc72e89e29c4c23b44bb6d53a89d9c245d94857305088dea6d0321d9ff551240d0e728b65bb7d99c3f64b117e7ab4f88ef7c6299acc2622dc9cc3cd538e379c08f78c993b50555318b8687331502254f02393f03a33b8ffb5e46780744dd41d8f7507e7df4878b4cd280093b7c4c465a689a74819165f4c689bb450c6292b1cf416c2696b197e51166136b1b01bc0a5dae9506e68ca828b9d771dbc0df41538d6317a22fa7b66cf7b709856c373bd4244b88ea3718c12d7d08596b465d6146d10628fbec0670c8c04de315d5e4fe231a37cca6855e58d069850501c47444f9369538f243d2bb9da471ce947478ca74d63ed7ba3b265732c7bef5f0b820c9844de7328246fdde661f345438550540aacdfc6492c6a910a069211b409147ae54927271eba63580ec879474fdecfd21c21847b08e9745aa29f56b3f7899c16e71b5a651adfb3c11357520d4f73d8c6af2197206f66f9346ad37eec335ba8d05b42"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0xfffffffffffffd00}, 0x48) (async)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x0)
pwritev2(r9, &(0x7f0000000100)=[{&(0x7f00000000c0)="ff", 0x1}], 0x1, 0x25412, 0x4, 0x0) (async)
r10 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x42, 0x184)
fcntl$lock(r10, 0x6, &(0x7f00000002c0)={0x1, 0x0, 0xff34, 0x5}) (async)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x58)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4-open-bpf$PROG_LOAD-openat-pwritev2-openat-fcntl$lock
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)
open(&(0x7f0000000280)='./file1\x00', 0x4827e, 0x20) (async)
bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x18, 0xe, &(0x7f0000000200)=ANY=[@ANYBLOB="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"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0xfffffffffffffd00}, 0x48) (async)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x0)
pwritev2(r9, &(0x7f0000000100)=[{&(0x7f00000000c0)="ff", 0x1}], 0x1, 0x25412, 0x4, 0x0) (async)
r10 = openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x42, 0x184)
fcntl$lock(r10, 0x6, &(0x7f00000002c0)={0x1, 0x0, 0xff34, 0x5}) (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4-open-bpf$PROG_LOAD-openat-pwritev2-openat
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)
open(&(0x7f0000000280)='./file1\x00', 0x4827e, 0x20) (async)
bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x18, 0xe, &(0x7f0000000200)=ANY=[@ANYBLOB="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"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0xfffffffffffffd00}, 0x48) (async)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x0)
pwritev2(r9, &(0x7f0000000100)=[{&(0x7f00000000c0)="ff", 0x1}], 0x1, 0x25412, 0x4, 0x0) (async)
openat(0xffffffffffffff9c, &(0x7f0000000080)='./file1\x00', 0x42, 0x184)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4-open-bpf$PROG_LOAD-openat-pwritev2
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)
open(&(0x7f0000000280)='./file1\x00', 0x4827e, 0x20) (async)
bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x18, 0xe, &(0x7f0000000200)=ANY=[@ANYBLOB="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"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0xfffffffffffffd00}, 0x48) (async)
r9 = openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x0)
pwritev2(r9, &(0x7f0000000100)=[{&(0x7f00000000c0)="ff", 0x1}], 0x1, 0x25412, 0x4, 0x0) (async)

program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work
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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4-open-bpf$PROG_LOAD-openat
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)
open(&(0x7f0000000280)='./file1\x00', 0x4827e, 0x20) (async)
bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x18, 0xe, &(0x7f0000000200)=ANY=[@ANYBLOB="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"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0xfffffffffffffd00}, 0x48) (async)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./file1\x00', 0x143042, 0x0)

program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work
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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4-open-bpf$PROG_LOAD
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)
open(&(0x7f0000000280)='./file1\x00', 0x4827e, 0x20) (async)
bpf$PROG_LOAD(0x5, &(0x7f00000017c0)={0x18, 0xe, &(0x7f0000000200)=ANY=[@ANYBLOB="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"], &(0x7f00000001c0)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @fallback, 0xffffffffffffffff, 0x8, &(0x7f0000000000), 0x8, 0x10, &(0x7f0000000000), 0xfffffffffffffd00}, 0x48) (async)

program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work
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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4-open
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)
open(&(0x7f0000000280)='./file1\x00', 0x4827e, 0x20) (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT-syz_mount_image$ext4
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file1\x00', 0x2008407, &(0x7f0000000240)={[{@oldalloc}, {@grpquota}, {@noinit_itable}]}, 0xff, 0x4be, &(0x7f0000000a00)="$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") (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts-ioctl$sock_inet_SIOCADDRT
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)
ioctl$sock_inet_SIOCADDRT(r8, 0x890c, &(0x7f0000000840)={0x0, {0x2, 0x4e22, @empty}, {0x2, 0x8044, @remote}, {0x2, 0x4e21, @multicast2}, 0xc, 0x0, 0x0, 0x0, 0x0, &(0x7f00000002c0)='lo\x00', 0xffffffff, 0x0, 0x4}) (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT-getsockopt$inet6_opts
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)
getsockopt$inet6_opts(r2, 0x29, 0x36, &(0x7f0000000180)=""/112, &(0x7f0000000200)=0x70) (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite-ioctl$sock_inet_SIOCADDRT
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
r8 = socket$inet_udplite(0x2, 0x2, 0x88)
ioctl$sock_inet_SIOCADDRT(r8, 0x890b, &(0x7f0000000380)={0x0, {0x2, 0x4e23, @empty}, {0x2, 0x4e20, @remote}, {0x2, 0x4e20, @multicast2}, 0x107, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}) (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route-socket$inet_udplite
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)
socket$inet_udplite(0x2, 0x2, 0x88)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
r3 = socket$netlink(0x10, 0x3, 0x0) (async)
r4 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r5=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r4, 0xc400941b, &(0x7f0000000440)={r5, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r5, 0x482, 0x10001}) (async)
r6 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r6, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00', <r7=>0x0})
sendmsg$nl_route(r3, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000000)={&(0x7f00000006c0)=@newlink={0x50, 0x10, 0x401, 0x70bd2a, 0x0, {0x0, 0x0, 0x0, r7, 0x2c099, 0x4c00}, [@IFLA_LINKINFO={0x30, 0x12, 0x0, 0x1, @erspan={{0xb}, {0x20, 0x2, 0x0, 0x1, [@IFLA_GRE_COLLECT_METADATA={0x4}, @IFLA_GRE_ENCAP_DPORT={0x6, 0x11, 0x4e24}, @IFLA_GRE_ENCAP_SPORT={0x6, 0x10, 0x4e26}, @IFLA_GRE_ENCAP_FLAGS={0x6, 0xf, 0xff24}]}}}]}, 0x50}, 0x1, 0x0, 0x0, 0x240000d4}, 0x0) (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL-ioctl$sock_SIOCGIFINDEX
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
socket$netlink(0x10, 0x3, 0x0) (async)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r4=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, &(0x7f0000000440)={r4, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r4, 0x482, 0x10001}) (async)
r5 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r5, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)
ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000080)={'ip6tnl0\x00'})

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit-ioctl$sock_SIOCETHTOOL
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
socket$netlink(0x10, 0x3, 0x0) (async)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r4=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, &(0x7f0000000440)={r4, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r4, 0x482, 0x10001}) (async)
r5 = socket$nl_audit(0x10, 0x3, 0x9)
ioctl$sock_SIOCETHTOOL(r5, 0x8946, &(0x7f0000000100)={'ip6_vti0\x00', &(0x7f00000006c0)=@ethtool_rxfh={0x4b, 0x4a, 0xc8, 0xffffffff, 0x6, "77a6f0", 0x2}}) (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB-socket$nl_audit
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
socket$netlink(0x10, 0x3, 0x0) (async)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r4=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, &(0x7f0000000440)={r4, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r4, 0x482, 0x10001}) (async)
socket$nl_audit(0x10, 0x3, 0x9)

program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work
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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB-ioctl$BTRFS_IOC_SCRUB
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
socket$netlink(0x10, 0x3, 0x0) (async)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r4=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, &(0x7f0000000440)={r4, 0x6, 0x6}) (async)
ioctl$BTRFS_IOC_SCRUB(r1, 0xc400941b, &(0x7f0000000ec0)={r4, 0x482, 0x10001}) (async)

program crashed: KASAN: use-after-free Read in l2tp_tunnel_del_work
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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS-ioctl$BTRFS_IOC_SCRUB
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
socket$netlink(0x10, 0x3, 0x0) (async)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, <r4=>0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})
ioctl$BTRFS_IOC_SCRUB(r3, 0xc400941b, &(0x7f0000000440)={r4, 0x6, 0x6}) (async)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs-ioctl$BTRFS_IOC_BALANCE_PROGRESS
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
socket$netlink(0x10, 0x3, 0x0) (async)
openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-openat$sysfs
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
socket$netlink(0x10, 0x3, 0x0) (async)
openat$sysfs(0xffffffffffffff9c, &(0x7f0000000000)='/sys/kernel/fscaps', 0x80000, 0x44)

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-socket$netlink-ioctl$BTRFS_IOC_BALANCE_PROGRESS
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
socket$netlink(0x10, 0x3, 0x0) (async)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-setsockopt$IP6T_SO_SET_REPLACE-ioctl$BTRFS_IOC_BALANCE_PROGRESS
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x80002, 0x0) (async)
r1 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r2 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r1, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r2, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r1, 0x0, 0x7) (async)
setsockopt$IP6T_SO_SET_REPLACE(r0, 0x29, 0x40, &(0x7f0000000a00)=@raw={'raw\x00', 0x3c1, 0x3, 0x2f0, 0x0, 0x130, 0x26010000, 0x0, 0x130, 0x220, 0x220, 0x220, 0x220, 0x220, 0x3, 0x0, {[{{@uncond, 0x0, 0x110, 0xc8, 0x0, {0x0, 0x25e}, [@common=@unspec=@connlimit={{0x40}}, @common=@unspec=@state={{0x28}}]}, @unspec=@NOTRACK={0x20}}, {{@ipv6={@dev, @mcast1, [], [], 'bridge_slave_0\x00', 'dummy0\x00'}, 0x0, 0xa8, 0xf0}, @unspec=@CT0={0x48, 'CT\x00', 0x0, {0x2, 0x0, 0x0, 0x0, 'syz1\x00'}}}], {{'\x00', 0x0, 0xa8, 0xd0}, {0x28}}}}, 0x350) (async)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r1, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-write-ioctl$BTRFS_IOC_BALANCE_PROGRESS
detailed listing:
executing program 0:
socket$inet6(0xa, 0x80002, 0x0) (async)
r0 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
write(r0, 0x0, 0x7) (async)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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$inet6-socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_BALANCE_PROGRESS
detailed listing:
executing program 0:
socket$inet6(0xa, 0x80002, 0x0) (async)
r0 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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$inet6-socket$pppl2tp-socket$inet6_udp-ioctl$BTRFS_IOC_BALANCE_PROGRESS
detailed listing:
executing program 0:
socket$inet6(0xa, 0x80002, 0x0) (async)
r0 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
socket$inet6_udp(0xa, 0x2, 0x0)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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$inet6-socket$pppl2tp-connect$pppl2tp-ioctl$BTRFS_IOC_BALANCE_PROGRESS
detailed listing:
executing program 0:
socket$inet6(0xa, 0x80002, 0x0) (async)
r0 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, 0xffffffffffffffff, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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$inet6-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_BALANCE_PROGRESS
detailed listing:
executing program 0:
socket$inet6(0xa, 0x80002, 0x0) (async)
r0 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(0xffffffffffffffff, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r0, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(0xffffffffffffffff, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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_BALANCE_PROGRESS
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1) (async)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e) (async)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_BALANCE_PROGRESS
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_BALANCE_PROGRESS
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_BALANCE_PROGRESS(r0, 0x84009422, &(0x7f00000012c0)={0x0, 0x0, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @struct, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}, {0x0, @usage, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @struct}})

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_BALANCE_PROGRESS
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, 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_BALANCE_PROGRESS
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_BALANCE_PROGRESS
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_BALANCE_PROGRESS
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_BALANCE_PROGRESS
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_BALANCE_PROGRESS
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:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$pppl2tp-socket$inet6_udp-connect$pppl2tp-ioctl$BTRFS_IOC_BALANCE_PROGRESS
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:false 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_BALANCE_PROGRESS
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:false 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_BALANCE_PROGRESS
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, 0x0)

program crashed: KASAN: use-after-free Read in pppol2tp_sock_to_session
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:false 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_BALANCE_PROGRESS
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, 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:false 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_BALANCE_PROGRESS
detailed listing:
executing program 0:
r0 = socket$pppl2tp(0x18, 0x1, 0x1)
r1 = socket$inet6_udp(0xa, 0x2, 0x0)
connect$pppl2tp(r0, &(0x7f0000000740)=@pppol2tpv3={0x18, 0x1, {0x3, r1, {0x2, 0x4e24, @broadcast}, 0x2, 0x0, 0x4}}, 0x2e)
ioctl$BTRFS_IOC_BALANCE_PROGRESS(r0, 0x84009422, 0x0)

program crashed: KASAN: use-after-free Write in pppol2tp_release
validation run: crashed=true
reproducing took 36m20.903167603s
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 ffff88811004bd50 by task syz.2.17/381

CPU: 0 PID: 381 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: 0033:0x7fe112b8f159
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:00007fff4d4096c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fff4d4097b0 RCX: 00007fe112b8f159
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000006b4d R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b33820000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe112e16fac R14: 00007fe112e16fa8 R15: 00007fe112e16fa0

Allocated by task 381:
 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 381:
 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 ffff88811004bc00
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 336 bytes inside of
 512-byte region [ffff88811004bc00, ffff88811004be00)
The buggy address belongs to the page:
page:ffffea0004401200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110048
head:ffffea0004401200 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head)
raw: 4000000000010200 0000000000000000 0000000100000001 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 96, ts 5646511189, free_ts 0
 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_track_caller+0x1e4/0x310 mm/slub.c:4541
 __kmalloc_reserve net/core/skbuff.c:144 [inline]
 __alloc_skb+0xdc/0x520 net/core/skbuff.c:212
 alloc_skb include/linux/skbuff.h:1126 [inline]
 alloc_uevent_skb+0x85/0x240 lib/kobject_uevent.c:290
 uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline]
 kobject_uevent_net_broadcast+0x335/0x5a0 lib/kobject_uevent.c:409
 kobject_uevent_env+0x52b/0x700 lib/kobject_uevent.c:608
 kobject_synth_uevent+0x452/0x940 lib/kobject_uevent.c:208
 store_uevent+0x16/0x30 kernel/module.c:1233
 module_attr_store+0x5f/0x80 kernel/params.c:921
 sysfs_kf_write+0x129/0x150 fs/sysfs/file.c:143
 kernfs_fop_write_iter+0x2bd/0x400 fs/kernfs/file.c:296
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88811004bc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88811004bc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88811004bd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                 ^
 ffff88811004bd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88811004be00: 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 ffff88811004bd50 by task syz.2.17/381

CPU: 0 PID: 381 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: 0033:0x7fe112b8f159
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:00007fff4d4096c8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007fff4d4097b0 RCX: 00007fe112b8f159
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 0000000000006b4d R08: 0000000000000001 R09: 0000000000000000
R10: 0000001b33820000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe112e16fac R14: 00007fe112e16fa8 R15: 00007fe112e16fa0

Allocated by task 381:
 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 381:
 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 ffff88811004bc00
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 336 bytes inside of
 512-byte region [ffff88811004bc00, ffff88811004be00)
The buggy address belongs to the page:
page:ffffea0004401200 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x110048
head:ffffea0004401200 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x4000000000010200(slab|head)
raw: 4000000000010200 0000000000000000 0000000100000001 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 0xd20c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 96, ts 5646511189, free_ts 0
 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_track_caller+0x1e4/0x310 mm/slub.c:4541
 __kmalloc_reserve net/core/skbuff.c:144 [inline]
 __alloc_skb+0xdc/0x520 net/core/skbuff.c:212
 alloc_skb include/linux/skbuff.h:1126 [inline]
 alloc_uevent_skb+0x85/0x240 lib/kobject_uevent.c:290
 uevent_net_broadcast_untagged lib/kobject_uevent.c:326 [inline]
 kobject_uevent_net_broadcast+0x335/0x5a0 lib/kobject_uevent.c:409
 kobject_uevent_env+0x52b/0x700 lib/kobject_uevent.c:608
 kobject_synth_uevent+0x452/0x940 lib/kobject_uevent.c:208
 store_uevent+0x16/0x30 kernel/module.c:1233
 module_attr_store+0x5f/0x80 kernel/params.c:921
 sysfs_kf_write+0x129/0x150 fs/sysfs/file.c:143
 kernfs_fop_write_iter+0x2bd/0x400 fs/kernfs/file.c:296
page_owner free stack trace missing

Memory state around the buggy address:
 ffff88811004bc00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88811004bc80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff88811004bd00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                                                 ^
 ffff88811004bd80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff88811004be00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================