Extracting prog: 5m14.360540064s Minimizing prog: 1h32m0.709269509s Simplifying prog options: 0s Extracting C: 3m8.461640375s Simplifying C: 25m17.343453432s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {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}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program crashed: INFO: task hung in vfs_coredump single: successfully extracted reproducer found reproducer with 6 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) gettid() program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) tkill(0x0, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440), 0x0) r0 = gettid() tkill(r0, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r1 = gettid() tkill(r1, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program did not crash testing program (duration=6m0s, {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}}): open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESOCT]) r1 = gettid() tkill(r1, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, 0x0) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r0, @ANYBLOB=',wfdno=', @ANYRESOCT]) r1 = gettid() tkill(r1, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(0x0, 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(0x0, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r1 = gettid() tkill(r1, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, 0x0, &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', 0x0, 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440), 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, 0x0) r0 = gettid() tkill(r0, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440), 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[]) r0 = gettid() tkill(r0, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB, @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB, @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill program crashed: INFO: task hung in vfs_coredump simplifying C reproducer testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill program crashed: INFO: task hung in vfs_coredump testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill program crashed: INFO: task hung in vfs_coredump testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill program crashed: INFO: task hung in vfs_coredump testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill program crashed: INFO: task hung in vfs_coredump testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill program crashed: INFO: task hung in vfs_coredump testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill program crashed: INFO: task hung in vfs_coredump testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program crashed: INFO: task hung in vfs_coredump validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program crashed: INFO: task hung in vfs_coredump validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socketpair$unix-open-pipe2-mount$9p_fd-gettid-tkill detailed listing: executing program 0: socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) open(&(0x7f0000000200)='./file0\x00', 0x4008040, 0x0) pipe2(&(0x7f0000001440)={0xffffffffffffffff}, 0x0) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x800, &(0x7f00000002c0)=ANY=[@ANYBLOB='trans=fd,rfdno=', @ANYRESHEX=r1, @ANYBLOB=',wfdno=', @ANYRESOCT=r0]) r2 = gettid() tkill(r2, 0x4) program crashed: INFO: task hung in vfs_coredump validation run: crashed=true reproducing took 2h15m17.106416693s repro crashed as (corrupted=false): INFO: task syz.0.17:6004 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.17 state:D stack:27464 pid:6004 tgid:6002 ppid:5956 task_flags:0x400640 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5282 [inline] __schedule+0x14ed/0x5040 kernel/sched/core.c:6894 __schedule_loop kernel/sched/core.c:6976 [inline] schedule+0x165/0x360 kernel/sched/core.c:6991 schedule_timeout+0x9a/0x270 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:100 [inline] __wait_for_common+0x3da/0x710 kernel/sched/completion.c:121 wait_for_common kernel/sched/completion.c:132 [inline] wait_for_completion_state+0x1c/0x40 kernel/sched/completion.c:269 coredump_wait fs/coredump.c:534 [inline] vfs_coredump+0x94b/0x3e60 fs/coredump.c:1196 get_signal+0x1108/0x1340 kernel/signal.c:3019 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x87/0x4e0 kernel/entry/common.c:75 __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_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2c1/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcaf8d8f749 RSP: 002b:00007fcaf9b46038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c8 RAX: 0000000000000000 RBX: 00007fcaf8fe6090 RCX: 00007fcaf8d8f749 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005 RBP: 00007fcaf8e13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fcaf8fe6128 R14: 00007fcaf8fe6090 R15: 00007fff2f70bd28 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffffffff8e33efa0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline] #0: ffffffff8e33efa0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline] #0: ffffffff8e33efa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775 1 lock held by klogd/5181: #0: ffff8880b873ab98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:644 2 locks held by getty/5581: #0: ffff88803006c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x449/0x1460 drivers/tty/n_tty.c:2211 3 locks held by kworker/1:6/6082: #0: ffff88813fe55948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x841/0x15a0 kernel/workqueue.c:3254 #1: ffffc90002fc7c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x868/0x15a0 kernel/workqueue.c:3255 #2: ffff88807853f240 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x1f7/0x3b0 drivers/net/netdevsim/fib.c:1490 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:161 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:375 [inline] watchdog+0xe88/0xee0 kernel/hung_task.c:588 kthread+0x389/0x480 kernel/kthread.c:467 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 4840 Comm: kworker/u8:12 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline] RIP: 0010:write_comp_data kernel/kcov.c:246 [inline] RIP: 0010:__sanitizer_cov_trace_switch+0x97/0x130 kernel/kcov.c:351 Code: 54 53 48 8b 54 24 20 65 4c 8b 04 25 08 50 c6 92 45 31 c9 eb 08 49 ff c1 4c 39 c8 74 77 4e 8b 54 ce 10 65 44 8b 1d 59 4f 05 11 <41> 81 e3 00 01 ff 00 74 13 41 81 fb 00 01 00 00 75 d9 41 83 b8 44 RSP: 0018:ffffc9000e4df118 EFLAGS: 00000212 RAX: 0000000000000028 RBX: 0000000000000009 RCX: 0000000000000001 RDX: ffffffff8aea3680 RSI: ffffffff8f9c1200 RDI: 00000000000000dd RBP: ffffc9000e4df530 R08: ffff888033b69e40 R09: 000000000000001a R10: 000000000000007e R11: 0000000080000000 R12: ffff88807bcba793 R13: ffff88807bcba79c R14: dffffc0000000000 R15: 00000000000000dd FS: 0000000000000000(0000) GS:ffff888125abb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2bc065cd58 CR3: 00000000227fc000 CR4: 00000000003526f0 Call Trace: _ieee802_11_parse_elems_full+0x800/0x4660 net/mac80211/parse.c:319 ieee802_11_parse_elems_full+0x125a/0x2ab0 net/mac80211/parse.c:1082 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2469 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1571 [inline] ieee80211_ibss_rx_queued_mgmt+0x48e/0x2af0 net/mac80211/ibss.c:1602 ieee80211_iface_process_skb net/mac80211/iface.c:1736 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1790 cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438 process_one_work+0x93a/0x15a0 kernel/workqueue.c:3279 process_scheduled_works kernel/workqueue.c:3362 [inline] worker_thread+0x9b0/0xee0 kernel/workqueue.c:3443 kthread+0x389/0x480 kernel/kthread.c:467 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 final repro crashed as (corrupted=false): INFO: task syz.0.17:6004 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.17 state:D stack:27464 pid:6004 tgid:6002 ppid:5956 task_flags:0x400640 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5282 [inline] __schedule+0x14ed/0x5040 kernel/sched/core.c:6894 __schedule_loop kernel/sched/core.c:6976 [inline] schedule+0x165/0x360 kernel/sched/core.c:6991 schedule_timeout+0x9a/0x270 kernel/time/sleep_timeout.c:75 do_wait_for_common kernel/sched/completion.c:100 [inline] __wait_for_common+0x3da/0x710 kernel/sched/completion.c:121 wait_for_common kernel/sched/completion.c:132 [inline] wait_for_completion_state+0x1c/0x40 kernel/sched/completion.c:269 coredump_wait fs/coredump.c:534 [inline] vfs_coredump+0x94b/0x3e60 fs/coredump.c:1196 get_signal+0x1108/0x1340 kernel/signal.c:3019 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop+0x87/0x4e0 kernel/entry/common.c:75 __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_work include/linux/entry-common.h:159 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline] do_syscall_64+0x2c1/0xf80 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcaf8d8f749 RSP: 002b:00007fcaf9b46038 EFLAGS: 00000246 ORIG_RAX: 00000000000000c8 RAX: 0000000000000000 RBX: 00007fcaf8fe6090 RCX: 00007fcaf8d8f749 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000005 RBP: 00007fcaf8e13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fcaf8fe6128 R14: 00007fcaf8fe6090 R15: 00007fff2f70bd28 Showing all locks held in the system: 1 lock held by khungtaskd/31: #0: ffffffff8e33efa0 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:312 [inline] #0: ffffffff8e33efa0 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:850 [inline] #0: ffffffff8e33efa0 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180 kernel/locking/lockdep.c:6775 1 lock held by klogd/5181: #0: ffff8880b873ab98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 kernel/sched/core.c:644 2 locks held by getty/5581: #0: ffff88803006c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x449/0x1460 drivers/tty/n_tty.c:2211 3 locks held by kworker/1:6/6082: #0: ffff88813fe55948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x841/0x15a0 kernel/workqueue.c:3254 #1: ffffc90002fc7c40 ((work_completion)(&data->fib_event_work)){+.+.}-{0:0}, at: process_one_work+0x868/0x15a0 kernel/workqueue.c:3255 #2: ffff88807853f240 (&data->fib_lock){+.+.}-{4:4}, at: nsim_fib_event_work+0x1f7/0x3b0 drivers/net/netdevsim/fib.c:1490 ============================================= NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 31 Comm: khungtaskd Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 nmi_cpu_backtrace+0x274/0x2d0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:161 [inline] __sys_info lib/sys_info.c:157 [inline] sys_info+0x135/0x170 lib/sys_info.c:165 check_hung_uninterruptible_tasks kernel/hung_task.c:375 [inline] watchdog+0xe88/0xee0 kernel/hung_task.c:588 kthread+0x389/0x480 kernel/kthread.c:467 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 4840 Comm: kworker/u8:12 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline] RIP: 0010:write_comp_data kernel/kcov.c:246 [inline] RIP: 0010:__sanitizer_cov_trace_switch+0x97/0x130 kernel/kcov.c:351 Code: 54 53 48 8b 54 24 20 65 4c 8b 04 25 08 50 c6 92 45 31 c9 eb 08 49 ff c1 4c 39 c8 74 77 4e 8b 54 ce 10 65 44 8b 1d 59 4f 05 11 <41> 81 e3 00 01 ff 00 74 13 41 81 fb 00 01 00 00 75 d9 41 83 b8 44 RSP: 0018:ffffc9000e4df118 EFLAGS: 00000212 RAX: 0000000000000028 RBX: 0000000000000009 RCX: 0000000000000001 RDX: ffffffff8aea3680 RSI: ffffffff8f9c1200 RDI: 00000000000000dd RBP: ffffc9000e4df530 R08: ffff888033b69e40 R09: 000000000000001a R10: 000000000000007e R11: 0000000080000000 R12: ffff88807bcba793 R13: ffff88807bcba79c R14: dffffc0000000000 R15: 00000000000000dd FS: 0000000000000000(0000) GS:ffff888125abb000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2bc065cd58 CR3: 00000000227fc000 CR4: 00000000003526f0 Call Trace: _ieee802_11_parse_elems_full+0x800/0x4660 net/mac80211/parse.c:319 ieee802_11_parse_elems_full+0x125a/0x2ab0 net/mac80211/parse.c:1082 ieee802_11_parse_elems net/mac80211/ieee80211_i.h:2469 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1571 [inline] ieee80211_ibss_rx_queued_mgmt+0x48e/0x2af0 net/mac80211/ibss.c:1602 ieee80211_iface_process_skb net/mac80211/iface.c:1736 [inline] ieee80211_iface_work+0x85f/0x12d0 net/mac80211/iface.c:1790 cfg80211_wiphy_work+0x2ab/0x450 net/wireless/core.c:438 process_one_work+0x93a/0x15a0 kernel/workqueue.c:3279 process_scheduled_works kernel/workqueue.c:3362 [inline] worker_thread+0x9b0/0xee0 kernel/workqueue.c:3443 kthread+0x389/0x480 kernel/kthread.c:467 ret_from_fork+0x510/0xa50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246