Extracting prog: 1m13.641516527s Minimizing prog: 9m24.316425538s Simplifying prog options: 0s Extracting C: 26.974827438s Simplifying C: 6m40.914678053s extracting reproducer from 1 programs testing a last program of every proc 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program crashed: kernel BUG in sock_write_iter single: successfully extracted reproducer found reproducer with 6 syscalls minimizing guilty program 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) program did not crash 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) write(r0, &(0x7f0000000000)="01", 0x1) program did not crash 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: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$packet-bind$packet-setsockopt$packet_tx_ring-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program did not crash 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: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$packet-bind$packet-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program did not crash 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: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-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program did not crash 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: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}}): bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(0xffffffffffffffff, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, 0xffffffffffffffff, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(0xffffffffffffffff, &(0x7f0000000000)="01", 0x1) program did not crash 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, 0x0, 0x0) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program did not crash 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, 0x0, 0x0) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program did not crash 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, 0x0, 0x0) write(r0, &(0x7f0000000000)="01", 0x1) program did not crash 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{0x0}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program did not crash 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, 0x0, 0x0) program did not crash 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000), 0x0) program did not crash extracting C reproducer testing compiled C 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: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$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write program crashed: kernel BUG in sock_write_iter simplifying C reproducer testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write program crashed: kernel BUG in sock_write_iter testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write program crashed: kernel BUG in sock_write_iter testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write program crashed: kernel BUG in sock_write_iter testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write program crashed: kernel BUG in sock_write_iter testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write program crashed: kernel BUG in sock_write_iter testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write program crashed: kernel BUG in sock_write_iter testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program crashed: kernel BUG in sock_write_iter validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program crashed: kernel BUG in sock_write_iter validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$packet-bind$packet-setsockopt$packet_tx_ring-mmap-readv-write detailed listing: executing program 0: r0 = socket$packet(0x11, 0x2, 0x300) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1, 0x1, 0x1, 0xfe, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f00000000c0)=@req={0x1000, 0x4, 0x800, 0x8}, 0x10) mmap(&(0x7f0000000000/0x4000)=nil, 0x4000, 0x1000002, 0x13, r0, 0x0) readv(0xffffffffffffffff, &(0x7f0000000000)=[{&(0x7f00000000c0)=""/243, 0xfffffdef}], 0x1) write(r0, &(0x7f0000000000)="01", 0x1) program crashed: kernel BUG in sock_write_iter validation run: crashed=true reproducing took 20m59.367353115s repro crashed as (corrupted=false): ------------[ cut here ]------------ kernel BUG at net/socket.c:715! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 383 Comm: syz.2.17 Not tainted syzkaller #0 f6ed0fb9bb938319f6518c785cf37c2d863a58c7 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:sock_sendmsg_nosec net/socket.c:715 [inline] RIP: 0010:__sock_sendmsg net/socket.c:727 [inline] RIP: 0010:sock_write_iter+0x44f/0x490 net/socket.c:1148 Code: 4c 89 f7 4c 89 ee 48 89 da 4d 89 fb 41 ba 71 3e ca c0 45 03 53 f1 74 02 0f 0b 2e e8 9b ba 88 1b e9 a5 fe ff ff e8 11 8e 0e fd <0f> 0b e8 0a 8e 0e fd 49 83 c6 18 4d 89 f5 49 c1 ee 03 43 80 3c 3e RSP: 0018:ffffc900011bfb60 EFLAGS: 00010293 RAX: ffffffff8478eb5f RBX: 00000000fffffdef RCX: ffff88811473cc00 RDX: 0000000000000000 RSI: 00000000fffffdef RDI: 00000000fffffdef RBP: ffffc900011bfc90 R08: ffffc900011bf7c7 R09: 1ffff92000237ef8 R10: dffffc0000000000 R11: fffff52000237ef9 R12: 1ffff92000237f70 R13: ffffc900011bfba0 R14: ffff88811de2de00 R15: dffffc0000000000 FS: 000055555a516500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000200 CR3: 00000001130de000 CR4: 00000000003526b0 Call Trace: new_sync_write fs/read_write.c:591 [inline] vfs_write+0x75f/0xfd0 fs/read_write.c:684 ksys_write+0x145/0x260 fs/read_write.c:737 __do_sys_write fs/read_write.c:749 [inline] __se_sys_write fs/read_write.c:746 [inline] __x64_sys_write+0x7f/0x90 fs/read_write.c:746 x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f878679e159 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:00007fffc4f2fc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8786a25fa0 RCX: 00007f878679e159 RDX: 0000000000000001 RSI: 0000200000000000 RDI: 0000000000000003 RBP: 00007f878683506b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8786a25fac R14: 00007f8786a25fa0 R15: 00007f8786a25fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:sock_sendmsg_nosec net/socket.c:715 [inline] RIP: 0010:__sock_sendmsg net/socket.c:727 [inline] RIP: 0010:sock_write_iter+0x44f/0x490 net/socket.c:1148 Code: 4c 89 f7 4c 89 ee 48 89 da 4d 89 fb 41 ba 71 3e ca c0 45 03 53 f1 74 02 0f 0b 2e e8 9b ba 88 1b e9 a5 fe ff ff e8 11 8e 0e fd <0f> 0b e8 0a 8e 0e fd 49 83 c6 18 4d 89 f5 49 c1 ee 03 43 80 3c 3e RSP: 0018:ffffc900011bfb60 EFLAGS: 00010293 RAX: ffffffff8478eb5f RBX: 00000000fffffdef RCX: ffff88811473cc00 RDX: 0000000000000000 RSI: 00000000fffffdef RDI: 00000000fffffdef RBP: ffffc900011bfc90 R08: ffffc900011bf7c7 R09: 1ffff92000237ef8 R10: dffffc0000000000 R11: fffff52000237ef9 R12: 1ffff92000237f70 R13: ffffc900011bfba0 R14: ffff88811de2de00 R15: dffffc0000000000 FS: 000055555a516500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000200 CR3: 00000001130de000 CR4: 00000000003526b0 final repro crashed as (corrupted=false): ------------[ cut here ]------------ kernel BUG at net/socket.c:715! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 383 Comm: syz.2.17 Not tainted syzkaller #0 f6ed0fb9bb938319f6518c785cf37c2d863a58c7 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:sock_sendmsg_nosec net/socket.c:715 [inline] RIP: 0010:__sock_sendmsg net/socket.c:727 [inline] RIP: 0010:sock_write_iter+0x44f/0x490 net/socket.c:1148 Code: 4c 89 f7 4c 89 ee 48 89 da 4d 89 fb 41 ba 71 3e ca c0 45 03 53 f1 74 02 0f 0b 2e e8 9b ba 88 1b e9 a5 fe ff ff e8 11 8e 0e fd <0f> 0b e8 0a 8e 0e fd 49 83 c6 18 4d 89 f5 49 c1 ee 03 43 80 3c 3e RSP: 0018:ffffc900011bfb60 EFLAGS: 00010293 RAX: ffffffff8478eb5f RBX: 00000000fffffdef RCX: ffff88811473cc00 RDX: 0000000000000000 RSI: 00000000fffffdef RDI: 00000000fffffdef RBP: ffffc900011bfc90 R08: ffffc900011bf7c7 R09: 1ffff92000237ef8 R10: dffffc0000000000 R11: fffff52000237ef9 R12: 1ffff92000237f70 R13: ffffc900011bfba0 R14: ffff88811de2de00 R15: dffffc0000000000 FS: 000055555a516500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000200 CR3: 00000001130de000 CR4: 00000000003526b0 Call Trace: new_sync_write fs/read_write.c:591 [inline] vfs_write+0x75f/0xfd0 fs/read_write.c:684 ksys_write+0x145/0x260 fs/read_write.c:737 __do_sys_write fs/read_write.c:749 [inline] __se_sys_write fs/read_write.c:746 [inline] __x64_sys_write+0x7f/0x90 fs/read_write.c:746 x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2 do_syscall_x64 arch/x86/entry/common.c:47 [inline] do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78 entry_SYSCALL_64_after_hwframe+0x76/0x7e RIP: 0033:0x7f878679e159 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:00007fffc4f2fc68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f8786a25fa0 RCX: 00007f878679e159 RDX: 0000000000000001 RSI: 0000200000000000 RDI: 0000000000000003 RBP: 00007f878683506b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8786a25fac R14: 00007f8786a25fa0 R15: 00007f8786a25fa0 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:sock_sendmsg_nosec net/socket.c:715 [inline] RIP: 0010:__sock_sendmsg net/socket.c:727 [inline] RIP: 0010:sock_write_iter+0x44f/0x490 net/socket.c:1148 Code: 4c 89 f7 4c 89 ee 48 89 da 4d 89 fb 41 ba 71 3e ca c0 45 03 53 f1 74 02 0f 0b 2e e8 9b ba 88 1b e9 a5 fe ff ff e8 11 8e 0e fd <0f> 0b e8 0a 8e 0e fd 49 83 c6 18 4d 89 f5 49 c1 ee 03 43 80 3c 3e RSP: 0018:ffffc900011bfb60 EFLAGS: 00010293 RAX: ffffffff8478eb5f RBX: 00000000fffffdef RCX: ffff88811473cc00 RDX: 0000000000000000 RSI: 00000000fffffdef RDI: 00000000fffffdef RBP: ffffc900011bfc90 R08: ffffc900011bf7c7 R09: 1ffff92000237ef8 R10: dffffc0000000000 R11: fffff52000237ef9 R12: 1ffff92000237f70 R13: ffffc900011bfba0 R14: ffff88811de2de00 R15: dffffc0000000000 FS: 000055555a516500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000200 CR3: 00000001130de000 CR4: 00000000003526b0