Extracting prog: 36.014102637s Minimizing prog: 11m27.738345608s Simplifying prog options: 1m0.531518969s Extracting C: 31.345264294s Simplifying C: 7m32.094395404s extracting reproducer from 67 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:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program crashed: WARNING in __dev_queue_xmit single: successfully extracted reproducer found reproducer with 9 syscalls minimizing guilty program testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00'}) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) socket$nl_generic(0x10, 0x3, 0x10) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, 0x0, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) ioctl$ifreq_SIOCGIFINDEX_wireguard(0xffffffffffffffff, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r3, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r1, &(0x7f0000000210)="01", 0x1) r2 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r2, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r3, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) read(r1, &(0x7f0000800000)=""/8, 0x8) r2 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r2, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r3, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) write(0xffffffffffffffff, &(0x7f0000000210)="01", 0x1) read(0xffffffffffffffff, &(0x7f0000800000)=""/8, 0x8) r1 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r1, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r2, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, 0xffffffffffffffff, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r1, &(0x7f0000000210)="01", 0x1) read(r0, &(0x7f0000800000)=""/8, 0x8) r2 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r2, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(0xffffffffffffffff, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r3, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, 0x0, 0x0) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(0x0, 0x0) write(0xffffffffffffffff, &(0x7f0000000210)="01", 0x1) read(0xffffffffffffffff, &(0x7f0000800000)=""/8, 0x8) r1 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r1, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r2, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, 0x0, 0x0) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210), 0x0) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, 0x0, 0x0) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, 0x0) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, 0x0, 0x1, 0x0, 0x0, @multicast}, 0x14) program did not crash testing program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00'}) sendto$packet(r0, 0x0, 0x0, 0x4000010, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=35.207439292s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program did not crash simplifying guilty program options testing program (duration=35.207439292s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program crashed: WARNING in __dev_queue_xmit extracting C reproducer testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit simplifying C reproducer testing compiled C program (duration=35.207439292s, {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: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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program did not crash testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program did not crash testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false 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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing compiled C program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet program crashed: WARNING in __dev_queue_xmit testing program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc: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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program crashed: WARNING in __dev_queue_xmit validation run: crashed=true testing program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc: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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program crashed: WARNING in __dev_queue_xmit validation run: crashed=true testing program (duration=35.207439292s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc: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$packet-setsockopt$packet_tx_ring-mmap-pipe2-write-read-socket$nl_generic-ioctl$ifreq_SIOCGIFINDEX_wireguard-sendto$packet detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000080)=@req={0x800000, 0x1, 0x1000, 0x800}, 0x10) mmap(&(0x7f0000800000/0x800000)=nil, 0x800000, 0x3, 0x11, r0, 0x0) pipe2(&(0x7f0000000200)={0x0, 0x0}, 0x0) write(r2, &(0x7f0000000210)="01", 0x1) read(r1, &(0x7f0000800000)=""/8, 0x8) r3 = socket$nl_generic(0x10, 0x3, 0x10) ioctl$ifreq_SIOCGIFINDEX_wireguard(r3, 0x8933, &(0x7f0000000280)={'wg0\x00', 0x0}) sendto$packet(r0, 0x0, 0x0, 0x4000010, &(0x7f0000000000)={0x11, 0x10, r4, 0x1, 0x0, 0x0, @multicast}, 0x14) program crashed: WARNING in __dev_queue_xmit validation run: crashed=true reproducing took 23m42.482477082s repro crashed as (corrupted=false): ------------[ cut here ]------------ skb_assert_len WARNING: ./include/linux/skbuff.h:2753 at skb_assert_len include/linux/skbuff.h:2753 [inline], CPU#2: syz.0.17/5904 WARNING: ./include/linux/skbuff.h:2753 at __dev_queue_xmit+0x21bc/0x4970 net/core/dev.c:4781, CPU#2: syz.0.17/5904 Modules linked in: CPU: 2 UID: 0 PID: 5904 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:skb_assert_len include/linux/skbuff.h:2753 [inline] RIP: 0010:__dev_queue_xmit+0x21c3/0x4970 net/core/dev.c:4781 Code: 41 b8 01 00 00 00 31 d2 31 f6 48 89 df e8 95 7f f8 ff e9 b3 e0 ff ff e8 8b 71 7d f8 48 8d 3d 54 69 a3 07 48 c7 c6 20 90 16 8d <67> 48 0f b9 3a 44 0f b6 25 e6 6e 7c 07 31 ff 44 89 e6 e8 76 6b 7d RSP: 0018:ffffc90004c87838 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888039f04500 RCX: ffffffff898cd36d RDX: ffff888027d64a80 RSI: ffffffff8d169020 RDI: ffffffff91305cb0 RBP: ffff888039f04510 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880451a0680 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888039f045b4 FS: 000055556ff1a500(0000) GS:ffff8880d5fec000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32124008 CR3: 0000000052482000 CR4: 0000000000352ef0 Call Trace: dev_queue_xmit include/linux/netdevice.h:3448 [inline] packet_xmit+0x243/0x310 net/packet/af_packet.c:276 tpacket_snd net/packet/af_packet.c:2907 [inline] packet_sendmsg+0x28d6/0x4eb0 net/packet/af_packet.c:3134 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] __sys_sendto+0x48b/0x4e0 net/socket.c:2252 __do_sys_sendto net/socket.c:2259 [inline] __se_sys_sendto net/socket.c:2255 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2255 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd2caf9e0d9 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:00007fff13736108 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fd2cb225fa0 RCX: 00007fd2caf9e0d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fd2cb035024 R08: 0000200000000000 R09: 0000000000000014 R10: 0000000004000010 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd2cb225fac R14: 00007fd2cb225fa0 R15: 00007fd2cb225fa0 ---------------- Code disassembly (best guess): 0: 41 b8 01 00 00 00 mov $0x1,%r8d 6: 31 d2 xor %edx,%edx 8: 31 f6 xor %esi,%esi a: 48 89 df mov %rbx,%rdi d: e8 95 7f f8 ff call 0xfff87fa7 12: e9 b3 e0 ff ff jmp 0xffffe0ca 17: e8 8b 71 7d f8 call 0xf87d71a7 1c: 48 8d 3d 54 69 a3 07 lea 0x7a36954(%rip),%rdi # 0x7a36977 23: 48 c7 c6 20 90 16 8d mov $0xffffffff8d169020,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 44 0f b6 25 e6 6e 7c movzbl 0x77c6ee6(%rip),%r12d # 0x77c6f1d 36: 07 37: 31 ff xor %edi,%edi 39: 44 89 e6 mov %r12d,%esi 3c: e8 .byte 0xe8 3d: 76 6b jbe 0xaa 3f: 7d .byte 0x7d final repro crashed as (corrupted=false): ------------[ cut here ]------------ skb_assert_len WARNING: ./include/linux/skbuff.h:2753 at skb_assert_len include/linux/skbuff.h:2753 [inline], CPU#2: syz.0.17/5904 WARNING: ./include/linux/skbuff.h:2753 at __dev_queue_xmit+0x21bc/0x4970 net/core/dev.c:4781, CPU#2: syz.0.17/5904 Modules linked in: CPU: 2 UID: 0 PID: 5904 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:skb_assert_len include/linux/skbuff.h:2753 [inline] RIP: 0010:__dev_queue_xmit+0x21c3/0x4970 net/core/dev.c:4781 Code: 41 b8 01 00 00 00 31 d2 31 f6 48 89 df e8 95 7f f8 ff e9 b3 e0 ff ff e8 8b 71 7d f8 48 8d 3d 54 69 a3 07 48 c7 c6 20 90 16 8d <67> 48 0f b9 3a 44 0f b6 25 e6 6e 7c 07 31 ff 44 89 e6 e8 76 6b 7d RSP: 0018:ffffc90004c87838 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffff888039f04500 RCX: ffffffff898cd36d RDX: ffff888027d64a80 RSI: ffffffff8d169020 RDI: ffffffff91305cb0 RBP: ffff888039f04510 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880451a0680 R13: 0000000000000000 R14: 0000000000000000 R15: ffff888039f045b4 FS: 000055556ff1a500(0000) GS:ffff8880d5fec000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32124008 CR3: 0000000052482000 CR4: 0000000000352ef0 Call Trace: dev_queue_xmit include/linux/netdevice.h:3448 [inline] packet_xmit+0x243/0x310 net/packet/af_packet.c:276 tpacket_snd net/packet/af_packet.c:2907 [inline] packet_sendmsg+0x28d6/0x4eb0 net/packet/af_packet.c:3134 sock_sendmsg_nosec net/socket.c:775 [inline] __sock_sendmsg net/socket.c:790 [inline] __sys_sendto+0x48b/0x4e0 net/socket.c:2252 __do_sys_sendto net/socket.c:2259 [inline] __se_sys_sendto net/socket.c:2255 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2255 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd2caf9e0d9 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:00007fff13736108 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fd2cb225fa0 RCX: 00007fd2caf9e0d9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fd2cb035024 R08: 0000200000000000 R09: 0000000000000014 R10: 0000000004000010 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd2cb225fac R14: 00007fd2cb225fa0 R15: 00007fd2cb225fa0 ---------------- Code disassembly (best guess): 0: 41 b8 01 00 00 00 mov $0x1,%r8d 6: 31 d2 xor %edx,%edx 8: 31 f6 xor %esi,%esi a: 48 89 df mov %rbx,%rdi d: e8 95 7f f8 ff call 0xfff87fa7 12: e9 b3 e0 ff ff jmp 0xffffe0ca 17: e8 8b 71 7d f8 call 0xf87d71a7 1c: 48 8d 3d 54 69 a3 07 lea 0x7a36954(%rip),%rdi # 0x7a36977 23: 48 c7 c6 20 90 16 8d mov $0xffffffff8d169020,%rsi * 2a: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2f: 44 0f b6 25 e6 6e 7c movzbl 0x77c6ee6(%rip),%r12d # 0x77c6f1d 36: 07 37: 31 ff xor %edi,%edi 39: 44 89 e6 mov %r12d,%esi 3c: e8 .byte 0xe8 3d: 76 6b jbe 0xaa 3f: 7d .byte 0x7d