Extracting prog: 3m34.269497709s
Minimizing prog: 1h12m33.694341975s
Simplifying prog options: 0s
Extracting C: 2m42.24110216s
Simplifying C: 20m2.791797417s
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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
program crashed: INFO: task hung in do_coredump
single: successfully extracted reproducer
found reproducer with 7 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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
brk(0x200000ffc000)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat-close-socketpair$unix-socket$nl_netfilter-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
socket$nl_netfilter(0x10, 0x3, 0xc)
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat-close-socketpair$unix-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
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: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}}): openat-close-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
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: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}}): openat-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
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: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}}): close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
close(0xffffffffffffffff)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r0 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {}, 0x2c, {'wfdno', 0x3d, r0}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, 0x0, 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, 0x0)
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, 0x0, &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', 0x0, 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, 0x0)
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
program crashed: INFO: task hung in do_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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
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: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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
program crashed: INFO: task hung in do_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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
program crashed: INFO: task hung in do_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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
program crashed: INFO: task hung in do_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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
program crashed: INFO: task hung in do_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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
program crashed: INFO: task hung in do_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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
program crashed: INFO: task hung in do_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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
program crashed: INFO: task hung in do_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}}): openat-close-socketpair$unix-socket$nl_netfilter-mount$9p_fd-prctl$PR_SET_MM-brk
detailed listing:
executing program 0:
r0 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./file0\x00', 0x40042, 0x1)
close(r0)
socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040))
r1 = socket$nl_netfilter(0x10, 0x3, 0xc)
mount$9p_fd(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f00000001c0), 0x8080, &(0x7f0000000580)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}})
prctl$PR_SET_MM(0x23, 0x6, &(0x7f0000003000/0x3000)=nil)
brk(0x200000ffc000)
program crashed: INFO: task hung in do_coredump
validation run: crashed=true
reproducing took 1h46m43.231938147s
repro crashed as (corrupted=false):
INFO: task syz.2.17:383 blocked for more than 122 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.17 state:D stack:0 pid:383 tgid:383 ppid:372 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5996 [inline]
__schedule+0x134f/0x1ea0 kernel/sched/core.c:7843
__schedule_loop kernel/sched/core.c:7924 [inline]
schedule+0xc5/0x240 kernel/sched/core.c:7939
schedule_timeout+0xc7/0x3b0 kernel/time/timer.c:2596
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common+0x369/0x650 kernel/sched/completion.c:127
wait_for_completion_state+0x19/0x40 kernel/sched/completion.c:264
coredump_wait fs/coredump.c:448 [inline]
do_coredump+0x8ad/0x2fe0 fs/coredump.c:629
get_signal+0x11f8/0x14e0 kernel/signal.c:2918
arch_do_signal_or_restart+0xbc/0x760 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
irqentry_exit_to_user_mode+0x4d/0xb0 kernel/entry/common.c:231
irqentry_exit+0x16/0x60 kernel/entry/common.c:334
exc_page_fault+0x65/0xc0 arch/x86/mm/fault.c:1542
asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fd1a3e514f7
RSP: 002b:00007ffd07724260 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 000000000000000b RCX: 00000000000222e0
RDX: 00007ffd07724280 RSI: 00007ffd077243b0 RDI: 000000000000000b
RBP: 00007fd1a4217da0 R08: 0000000031a41f4e R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000000 R12: 000000000002292c
R13: 00007fd1a421609c R14: 0000000000022652 R15: 00007fd1a4216090
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 e538f3f6a543b135812147031d083fd1f2699041
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
nmi_cpu_backtrace+0x2ba/0x2d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
watchdog+0xdad/0xf00 kernel/hung_task.c:423
kthread+0x2c9/0x370 kernel/kthread.c:389
ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 e538f3f6a543b135812147031d083fd1f2699041
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:106
Code: cc cc cc cc cc cc cc b8 f0 7f f0 aa 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d d3 9c 48 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffc900001a7e00 EFLAGS: 000002c2
RAX: ffff8881f6f00000 RBX: ffff88810366cc00 RCX: ffffffff859eba4d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 00000000000331c4
RBP: ffffc900001a7e00 R08: ffff8881f6f39733 R09: 1ffff1103ede72e6
R10: dffffc0000000000 R11: ffffed103ede72e7 R12: 1ffff110206cd980
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff87ebca68
FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc6b93daff8 CR3: 000000011b5c6000 CR4: 00000000003526b0
Call Trace:
arch_safe_halt arch/x86/include/asm/paravirt.h:112 [inline]
default_idle+0x17/0x30 arch/x86/kernel/process.c:754
arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791
default_idle_call+0x3e/0x80 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:185 [inline]
do_idle+0x19f/0x4b0 kernel/sched/idle.c:326
cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:424
start_secondary+0x12e/0x140 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13b/0x157
final repro crashed as (corrupted=false):
INFO: task syz.2.17:383 blocked for more than 122 seconds.
Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.17 state:D stack:0 pid:383 tgid:383 ppid:372 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5996 [inline]
__schedule+0x134f/0x1ea0 kernel/sched/core.c:7843
__schedule_loop kernel/sched/core.c:7924 [inline]
schedule+0xc5/0x240 kernel/sched/core.c:7939
schedule_timeout+0xc7/0x3b0 kernel/time/timer.c:2596
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common+0x369/0x650 kernel/sched/completion.c:127
wait_for_completion_state+0x19/0x40 kernel/sched/completion.c:264
coredump_wait fs/coredump.c:448 [inline]
do_coredump+0x8ad/0x2fe0 fs/coredump.c:629
get_signal+0x11f8/0x14e0 kernel/signal.c:2918
arch_do_signal_or_restart+0xbc/0x760 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
irqentry_exit_to_user_mode+0x4d/0xb0 kernel/entry/common.c:231
irqentry_exit+0x16/0x60 kernel/entry/common.c:334
exc_page_fault+0x65/0xc0 arch/x86/mm/fault.c:1542
asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fd1a3e514f7
RSP: 002b:00007ffd07724260 EFLAGS: 00010206
RAX: 0000000000000000 RBX: 000000000000000b RCX: 00000000000222e0
RDX: 00007ffd07724280 RSI: 00007ffd077243b0 RDI: 000000000000000b
RBP: 00007fd1a4217da0 R08: 0000000031a41f4e R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000000 R12: 000000000002292c
R13: 00007fd1a421609c R14: 0000000000022652 R15: 00007fd1a4216090
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 e538f3f6a543b135812147031d083fd1f2699041
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:94
dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120
dump_stack+0x19/0x20 lib/dump_stack.c:129
nmi_cpu_backtrace+0x2ba/0x2d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline]
watchdog+0xdad/0xf00 kernel/hung_task.c:423
kthread+0x2c9/0x370 kernel/kthread.c:389
ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted syzkaller #0 e538f3f6a543b135812147031d083fd1f2699041
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026
RIP: 0010:pv_native_safe_halt+0x13/0x20 arch/x86/kernel/paravirt.c:106
Code: cc cc cc cc cc cc cc b8 f0 7f f0 aa 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d d3 9c 48 00 55 48 89 e5 fb f4 <5d> c3 cc cc cc cc cc cc cc cc cc cc cc b8 00 00 00 00 90 90 90 90
RSP: 0018:ffffc900001a7e00 EFLAGS: 000002c2
RAX: ffff8881f6f00000 RBX: ffff88810366cc00 RCX: ffffffff859eba4d
RDX: 0000000000000001 RSI: 0000000000000004 RDI: 00000000000331c4
RBP: ffffc900001a7e00 R08: ffff8881f6f39733 R09: 1ffff1103ede72e6
R10: dffffc0000000000 R11: ffffed103ede72e7 R12: 1ffff110206cd980
R13: 0000000000000001 R14: 0000000000000000 R15: ffffffff87ebca68
FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc6b93daff8 CR3: 000000011b5c6000 CR4: 00000000003526b0
Call Trace:
arch_safe_halt arch/x86/include/asm/paravirt.h:112 [inline]
default_idle+0x17/0x30 arch/x86/kernel/process.c:754
arch_cpu_idle+0xd/0x20 arch/x86/kernel/process.c:791
default_idle_call+0x3e/0x80 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:185 [inline]
do_idle+0x19f/0x4b0 kernel/sched/idle.c:326
cpu_startup_entry+0x47/0x60 kernel/sched/idle.c:424
start_secondary+0x12e/0x140 arch/x86/kernel/smpboot.c:314
common_startup_64+0x13b/0x157