Extracting prog: 2m15.925538207s
Minimizing prog: 27m6.752307307s
Simplifying prog options: 4m7.81814095s
Extracting C: 52.729727318s
Simplifying C: 0s


extracting reproducer from 72 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (async, rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program crashed: KASAN: use-after-free Read in nf_hook_entry_head
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (async, rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (async, rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
ioctl$TUNSETIFF(0xffffffffffffffff, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (async, rerun: 32)
sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
r0 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r0, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, 0x0, 0x20000050) (async, rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (async, rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={0x0, 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (async, rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (async, rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program crashed: KASAN: use-after-free Read in nf_hook_entry_head
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, 0x0, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, 0x0}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={0x0, 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB], 0x80}}, 0x0) (async, rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (rerun: 32)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program crashed: KASAN: use-after-free Read in nf_hook_entry_head
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, 0x0, 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
program did not crash
simplifying guilty program options
testing program (duration=45.40052518s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {Threaded:true 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program did not crash
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program crashed: KASAN: use-after-free Read in nf_hook_entry_head
validation run: crashed=true
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program crashed: KASAN: use-after-free Read in nf_hook_entry_head
validation run: crashed=true
testing program (duration=45.40052518s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_netfilter-sendmsg$NFT_BATCH-sendmsg$NFT_BATCH-openat$tun-ioctl$TUNSETIFF
detailed listing:
executing program 0:
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
sendmsg$NFT_BATCH(r0, &(0x7f0000000000)={0x0, 0x0, &(0x7f0000000200)={&(0x7f00000003c0)=ANY=[@ANYBLOB="140000001000010000000000000000000000000a28000000000a0101000000005e1affd5020000000900010073797a300000000008000240000000032c000000030a01030000e6ff00000000020000000900010073797a30000000000900030073797a320000000014000000110001"], 0x7c}, 0x1, 0x0, 0x0, 0x4805}, 0x20000050) (rerun: 32)
sendmsg$NFT_BATCH(r0, &(0x7f0000000840)={0x0, 0x0, &(0x7f0000000380)={&(0x7f0000000140)=ANY=[@ANYBLOB="140000001000010000000000000000000500000a58000000160a01040000000000000000020000020900020073797a30000000000900010073797a30000000002c00038008000240000000010800014000000000180003801400010073797a6b616c6c657230000000000000140000001100010000000000000000000100000af0e3eeb346540ccfebc753"], 0x80}}, 0x0) (async)
r1 = openat$tun(0xffffffffffffff9c, &(0x7f0000000100), 0x0, 0x0)
ioctl$TUNSETIFF(r1, 0x400454ca, &(0x7f0000000040)={'syzkaller0\x00', 0x2})

program crashed: KASAN: use-after-free Read in nf_hook_entry_head
validation run: crashed=true
reproducing took 38m33.242950867s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in read_pnet include/net/net_namespace.h:419 [inline]
BUG: KASAN: use-after-free in dev_net include/linux/netdevice.h:2741 [inline]
BUG: KASAN: use-after-free in nf_hook_entry_head+0x1f1/0x2c0 net/netfilter/core.c:319
Read of size 8 at addr ffff888057a7c108 by task syz.3.40/6201

CPU: 0 UID: 0 PID: 6201 Comm: syz.3.40 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xba/0x230 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 read_pnet include/net/net_namespace.h:419 [inline]
 dev_net include/linux/netdevice.h:2741 [inline]
 nf_hook_entry_head+0x1f1/0x2c0 net/netfilter/core.c:319
 __nf_unregister_net_hook+0x74/0x6f0 net/netfilter/core.c:491
 nft_unregister_flowtable_ops net/netfilter/nf_tables_api.c:8895 [inline]
 __nft_unregister_flowtable_net_hooks net/netfilter/nf_tables_api.c:8910 [inline]
 __nft_release_hook net/netfilter/nf_tables_api.c:11899 [inline]
 nft_rcv_nl_event+0x7b8/0xdb0 net/netfilter/nf_tables_api.c:12012
 notifier_call_chain+0x1be/0x400 kernel/notifier.c:85
 blocking_notifier_call_chain+0x6a/0x90 kernel/notifier.c:380
 netlink_release+0x123b/0x1ad0 net/netlink/af_netlink.c:761
 __sock_release net/socket.c:662 [inline]
 sock_close+0xc3/0x240 net/socket.c:1455
 __fput+0x44f/0xa70 fs/file_table.c:469
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f93aa79c629
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:00007ffd4d336628 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f93aaa17da0 RCX: 00007f93aa79c629
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f93aaa17da0 R08: 00007f93aaa16038 R09: 0000000000000000
R10: 000000000003fdb8 R11: 0000000000000246 R12: 000000000001a3e3
R13: 00007f93aaa1618c R14: 000000000001a126 R15: 00007f93aaa16180
 </TASK>

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888057a7c340 pfn:0x57a7c
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0001d0e908 ffff8880b8640c40 0000000000000000
raw: ffff888057a7c340 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x446dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_COMP), pid 6212, tgid 6201 (syz.3.40), ts 106772487268, free_ts 106912870615
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x231/0x280 mm/page_alloc.c:1889
 prep_new_page mm/page_alloc.c:1897 [inline]
 get_page_from_freelist+0x24dc/0x2580 mm/page_alloc.c:3962
 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5250
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2484
 ___kmalloc_large_node+0x4e/0x150 mm/slub.c:5160
 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:5191
 __do_kmalloc_node mm/slub.c:5207 [inline]
 __kvmalloc_node_noprof+0x7b/0x8a0 mm/slub.c:6711
 alloc_netdev_mqs+0xa6/0x11b0 net/core/dev.c:12017
 tun_set_iff+0x532/0xf00 drivers/net/tun.c:2778
 __tun_chr_ioctl+0x7bb/0x1e10 drivers/net/tun.c:3088
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 6201 tgid 6201 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978
 device_release+0x9e/0x1d0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x228/0x560 lib/kobject.c:737
 netdev_run_todo+0xc75/0xde0 net/core/dev.c:11718
 tun_detach drivers/net/tun.c:640 [inline]
 tun_chr_close+0x13c/0x1c0 drivers/net/tun.c:3436
 __fput+0x44f/0xa70 fs/file_table.c:469
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888057a7c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888057a7c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888057a7c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                      ^
 ffff888057a7c180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888057a7c200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: use-after-free in read_pnet include/net/net_namespace.h:419 [inline]
BUG: KASAN: use-after-free in dev_net include/linux/netdevice.h:2741 [inline]
BUG: KASAN: use-after-free in nf_hook_entry_head+0x1f1/0x2c0 net/netfilter/core.c:319
Read of size 8 at addr ffff888057a7c108 by task syz.3.40/6201

CPU: 0 UID: 0 PID: 6201 Comm: syz.3.40 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120
 print_address_description mm/kasan/report.c:378 [inline]
 print_report+0xba/0x230 mm/kasan/report.c:482
 kasan_report+0x117/0x150 mm/kasan/report.c:595
 read_pnet include/net/net_namespace.h:419 [inline]
 dev_net include/linux/netdevice.h:2741 [inline]
 nf_hook_entry_head+0x1f1/0x2c0 net/netfilter/core.c:319
 __nf_unregister_net_hook+0x74/0x6f0 net/netfilter/core.c:491
 nft_unregister_flowtable_ops net/netfilter/nf_tables_api.c:8895 [inline]
 __nft_unregister_flowtable_net_hooks net/netfilter/nf_tables_api.c:8910 [inline]
 __nft_release_hook net/netfilter/nf_tables_api.c:11899 [inline]
 nft_rcv_nl_event+0x7b8/0xdb0 net/netfilter/nf_tables_api.c:12012
 notifier_call_chain+0x1be/0x400 kernel/notifier.c:85
 blocking_notifier_call_chain+0x6a/0x90 kernel/notifier.c:380
 netlink_release+0x123b/0x1ad0 net/netlink/af_netlink.c:761
 __sock_release net/socket.c:662 [inline]
 sock_close+0xc3/0x240 net/socket.c:1455
 __fput+0x44f/0xa70 fs/file_table.c:469
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f93aa79c629
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:00007ffd4d336628 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 00007f93aaa17da0 RCX: 00007f93aa79c629
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f93aaa17da0 R08: 00007f93aaa16038 R09: 0000000000000000
R10: 000000000003fdb8 R11: 0000000000000246 R12: 000000000001a3e3
R13: 00007f93aaa1618c R14: 000000000001a126 R15: 00007f93aaa16180
 </TASK>

The buggy address belongs to the physical page:
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffff888057a7c340 pfn:0x57a7c
flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea0001d0e908 ffff8880b8640c40 0000000000000000
raw: ffff888057a7c340 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as freed
page last allocated via order 2, migratetype Unmovable, gfp_mask 0x446dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO|__GFP_NOWARN|__GFP_RETRY_MAYFAIL|__GFP_COMP), pid 6212, tgid 6201 (syz.3.40), ts 106772487268, free_ts 106912870615
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x231/0x280 mm/page_alloc.c:1889
 prep_new_page mm/page_alloc.c:1897 [inline]
 get_page_from_freelist+0x24dc/0x2580 mm/page_alloc.c:3962
 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5250
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2484
 ___kmalloc_large_node+0x4e/0x150 mm/slub.c:5160
 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:5191
 __do_kmalloc_node mm/slub.c:5207 [inline]
 __kvmalloc_node_noprof+0x7b/0x8a0 mm/slub.c:6711
 alloc_netdev_mqs+0xa6/0x11b0 net/core/dev.c:12017
 tun_set_iff+0x532/0xf00 drivers/net/tun.c:2778
 __tun_chr_ioctl+0x7bb/0x1e10 drivers/net/tun.c:3088
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 6201 tgid 6201 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 __free_pages_prepare mm/page_alloc.c:1433 [inline]
 __free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978
 device_release+0x9e/0x1d0 drivers/base/core.c:-1
 kobject_cleanup lib/kobject.c:689 [inline]
 kobject_release lib/kobject.c:720 [inline]
 kref_put include/linux/kref.h:65 [inline]
 kobject_put+0x228/0x560 lib/kobject.c:737
 netdev_run_todo+0xc75/0xde0 net/core/dev.c:11718
 tun_detach drivers/net/tun.c:640 [inline]
 tun_chr_close+0x13c/0x1c0 drivers/net/tun.c:3436
 __fput+0x44f/0xa70 fs/file_table.c:469
 task_work_run+0x1d9/0x270 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:67 [inline]
 exit_to_user_mode_loop+0xed/0x480 kernel/entry/common.c:98
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:325 [inline]
 do_syscall_64+0x32d/0xf80 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Memory state around the buggy address:
 ffff888057a7c000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888057a7c080: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
>ffff888057a7c100: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
                      ^
 ffff888057a7c180: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
 ffff888057a7c200: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
==================================================================