Extracting prog: 4m24.280811468s
Minimizing prog: 2h0m31.390638512s
Simplifying prog options: 0s
Extracting C: 2m54.078421689s
Simplifying C: 24m26.474747096s


extracting reproducer from 51 programs
testing a last program of every proc
single: executing 11 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-socketpair$nbd-getsockopt$sock_cred-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_io_uring_submit-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
getsockopt$sock_cred(r1, 0x1, 0x1c, 0xfffffffffffffffd, &(0x7f0000000000))
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r2 = syz_open_dev$MSR(&(0x7f00000001c0), 0x100000002, 0x0)
read$msr(r2, &(0x7f0000019680)=""/102392, 0x18ff8)
r3 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040)=<r4=>0x0, &(0x7f0000000240)=<r5=>0x0)
syz_memcpy_off$IO_URING_METADATA_GENERIC(r4, 0x4, &(0x7f00000000c0)=0xffb, 0x0, 0x4)
syz_io_uring_submit(r4, r5, &(0x7f00000002c0)=@IORING_OP_FSYNC={0x3, 0x4d, 0x0, @fd_index=0x4})
io_uring_enter(r3, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in cleanup_mnt
single: successfully extracted reproducer
found reproducer with 17 syscalls
minimizing guilty program
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-socketpair$nbd-getsockopt$sock_cred-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_io_uring_submit
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
getsockopt$sock_cred(r1, 0x1, 0x1c, 0xfffffffffffffffd, &(0x7f0000000000))
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r2 = syz_open_dev$MSR(&(0x7f00000001c0), 0x100000002, 0x0)
read$msr(r2, &(0x7f0000019680)=""/102392, 0x18ff8)
syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040)=<r3=>0x0, &(0x7f0000000240)=<r4=>0x0)
syz_memcpy_off$IO_URING_METADATA_GENERIC(r3, 0x4, &(0x7f00000000c0)=0xffb, 0x0, 0x4)
syz_io_uring_submit(r3, r4, &(0x7f00000002c0)=@IORING_OP_FSYNC={0x3, 0x4d, 0x0, @fd_index=0x4})

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-socketpair$nbd-getsockopt$sock_cred-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-syz_io_uring_setup-syz_memcpy_off$IO_URING_METADATA_GENERIC-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
getsockopt$sock_cred(r1, 0x1, 0x1c, 0xfffffffffffffffd, &(0x7f0000000000))
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r2 = syz_open_dev$MSR(&(0x7f00000001c0), 0x100000002, 0x0)
read$msr(r2, &(0x7f0000019680)=""/102392, 0x18ff8)
r3 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040)=<r4=>0x0, &(0x7f0000000240))
syz_memcpy_off$IO_URING_METADATA_GENERIC(r4, 0x4, &(0x7f00000000c0)=0xffb, 0x0, 0x4)
io_uring_enter(r3, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-socketpair$nbd-getsockopt$sock_cred-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
getsockopt$sock_cred(r1, 0x1, 0x1c, 0xfffffffffffffffd, &(0x7f0000000000))
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r2 = syz_open_dev$MSR(&(0x7f00000001c0), 0x100000002, 0x0)
read$msr(r2, &(0x7f0000019680)=""/102392, 0x18ff8)
r3 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r3, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-socketpair$nbd-getsockopt$sock_cred-prctl$PR_SCHED_CORE-syz_open_dev$MSR-read$msr-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
getsockopt$sock_cred(r1, 0x1, 0x1c, 0xfffffffffffffffd, &(0x7f0000000000))
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r2 = syz_open_dev$MSR(&(0x7f00000001c0), 0x100000002, 0x0)
read$msr(r2, &(0x7f0000019680)=""/102392, 0x18ff8)
io_uring_enter(0xffffffffffffffff, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-socketpair$nbd-getsockopt$sock_cred-prctl$PR_SCHED_CORE-syz_open_dev$MSR-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
getsockopt$sock_cred(r1, 0x1, 0x1c, 0xfffffffffffffffd, &(0x7f0000000000))
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x100000002, 0x0)
r2 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r2, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-socketpair$nbd-getsockopt$sock_cred-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
getsockopt$sock_cred(r1, 0x1, 0x1c, 0xfffffffffffffffd, &(0x7f0000000000))
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r2 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r2, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-socketpair$nbd-getsockopt$sock_cred-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, <r1=>0xffffffffffffffff})
getsockopt$sock_cred(r1, 0x1, 0x1c, 0xfffffffffffffffd, &(0x7f0000000000))
r2 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r2, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-socketpair$nbd-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080))
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x1b5cb000)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-getpid-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-sched_setscheduler-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r0 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r0, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-prlimit64-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-getpgrp-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
getpgrp(0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$sw_sync_info-prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
openat$sw_sync_info(0xffffffffffffff9c, 0x0, 0x101001, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, 0x0, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, 0x0, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, 0x0, &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
testing program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), 0x0)
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m27.673818361s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
program crashed: INFO: rcu detected stall in corrupted
simplifying C reproducer
testing compiled C program (duration=6m27.673818361s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m27.673818361s, {Threaded:false 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}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m27.673818361s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m27.673818361s, {Threaded:false 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}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m27.673818361s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m27.673818361s, {Threaded:false 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}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m27.673818361s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
program crashed: INFO: rcu detected stall in corrupted
testing program (duration=6m27.673818361s, {Threaded:false 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}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=6m27.673818361s, {Threaded:false 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}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: BUG: workqueue lockup
validation run: crashed=true
testing program (duration=6m27.673818361s, {Threaded:false 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}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000000)=0x6)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = syz_io_uring_setup(0x49a, &(0x7f00000003c0)={0x0, 0x2f75, 0x2, 0x3, 0x240024e}, &(0x7f0000000040), &(0x7f0000000240))
io_uring_enter(r1, 0x628, 0xc88d, 0x43, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
reproducing took 2h48m24.835811319s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=9237, q=579 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294958775-4294948273), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g9237 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:28744 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5256 [inline]
 __schedule+0x1139/0x6150 kernel/sched/core.c:6863
 __schedule_loop kernel/sched/core.c:6945 [inline]
 schedule+0xe7/0x3a0 kernel/sched/core.c:6960
 schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1ea/0xaf0 kernel/rcu/tree.c:2083
 rcu_gp_kthread+0x26d/0x380 kernel/rcu/tree.c:2285
 kthread+0x3c5/0x780 kernel/kthread.c:463
 ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:82
Code: b6 5f 02 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 13 39 12 00 fb f4 <e9> cc 35 03 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
RSP: 0018:ffffffff8e007df8 EFLAGS: 000002c6
RAX: 000000000011369d RBX: 0000000000000000 RCX: ffffffff8b7826d9
RDX: 0000000000000000 RSI: ffffffff8dace031 RDI: ffffffff8bf2b380
RBP: fffffbfff1c12f68 R08: 0000000000000001 R09: ffffed101708673d
R10: ffff8880b84339eb R11: ffffffff8e098670 R12: 0000000000000000
R13: ffffffff8e097b40 R14: ffffffff9088b8d0 R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8881248f5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc4bcd67fe8 CR3: 0000000072042000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
 default_idle+0x13/0x20 arch/x86/kernel/process.c:767
 default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122
 cpuidle_idle_call kernel/sched/idle.c:191 [inline]
 do_idle+0x38d/0x510 kernel/sched/idle.c:332
 cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430
 rest_init+0x16b/0x2b0 init/main.c:757
 start_kernel+0x3ef/0x4d0 init/main.c:1206
 x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:310
 x86_64_start_kernel+0x130/0x190 arch/x86/kernel/head64.c:291
 common_startup_64+0x13e/0x148
 </TASK>

report is corrupted, running repro again
testing compiled C program (duration=6m27.673818361s, {Threaded:false 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}}): prlimit64-sched_setscheduler-getpid-sched_setscheduler-prctl$PR_SCHED_CORE-syz_io_uring_setup-io_uring_enter
program crashed: BUG: workqueue lockup
final repro crashed as (corrupted=false):
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 197s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 198s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x100
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: vmstat_shepherd
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=2 refcnt=3
    pending: ovs_dp_masks_rebalance, psi_avgs_work
workqueue events_long: flags=0x100
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: defense_work_handler
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: flush_memcg_stats_dwork
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: toggle_allocation_gate
workqueue events_unbound: flags=0x2
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: crng_reseed
workqueue events_power_efficient: flags=0x180
  pwq 2: cpus=0 node=0 flags=0x0 nice=0 active=4 refcnt=5
    pending: neigh_managed_work, neigh_periodic_work, gc_worker, check_lifetime
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=5 refcnt=6
    pending: crda_timeout_work, neigh_managed_work, do_cache_clean, neigh_periodic_work, reg_check_chans_work
workqueue kvfree_rcu_reclaim: flags=0xa
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: kfree_rcu_monitor
workqueue mm_percpu_wq: flags=0x8
  pwq 6: cpus=1 node=0 flags=0x0 nice=0 active=1 refcnt=2
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=2
    pending: wb_workfn
workqueue iou_exit: flags=0x2
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=2 refcnt=3
    in-flight: 34:io_ring_exit_work
    pending: io_ring_exit_work
workqueue ipv6_addrconf: flags=0x6000a
  pwq 8: cpus=0-1 flags=0x4 nice=0 active=1 refcnt=4
    pending: addrconf_verify_work
workqueue krxrpcd: flags=0x2001a
  pwq 9: cpus=0-1 node=0 flags=0x4 nice=-20 active=1 refcnt=4
    in-flight: 52:rxrpc_peer_keepalive_worker
pool 8: cpus=0-1 flags=0x4 nice=0 hung=200s workers=15 idle: 3552 3981 2970 747 13 391 68 3502 4831 3817 37 12 2953 3783
pool 9: cpus=0-1 node=0 flags=0x4 nice=-20 hung=0s workers=2 idle: 5136
Showing backtraces of running workers in stalled CPU-bound worker pools: