Extracting prog: 13m57.574950154s
Minimizing prog: 2h26m2.032366673s
Simplifying prog options: 0s
Extracting C: 2m20.701890415s
Simplifying C: 48m23.541240739s


extracting reproducer from 31 programs
testing a last program of every proc
single: executing 6 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}}): ioctl$KVM_CREATE_VM-mmap-openat$vnet-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-connect$unix-sendmmsg$unix-recvmmsg-sched_setscheduler-add_key$keyring-keyctl$KEYCTL_RESTRICT_KEYRING-keyctl$KEYCTL_RESTRICT_KEYRING
detailed listing:
executing program 0:
ioctl$KVM_CREATE_VM(0xffffffffffffffff, 0xae01, 0x0)
mmap(&(0x7f0000000000/0x400000)=nil, 0x400000, 0x1, 0x10012, 0xffffffffffffffff, 0x0)
openat$vnet(0xffffffffffffff9c, 0x0, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000040)={0x8, 0x88}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
connect$unix(0xffffffffffffffff, &(0x7f0000000380)=@abs={0x0, 0x0, 0x4e23}, 0x6e)
sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000000), 0x651, 0x0)
recvmmsg(0xffffffffffffffff, &(0x7f00000000c0), 0x10106, 0x2, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x6)
r1 = add_key$keyring(&(0x7f0000000200), &(0x7f0000000140)={'syz', 0x1}, 0x0, 0x0, 0xffffffffffffffff)
keyctl$KEYCTL_RESTRICT_KEYRING(0x1d, r1, 0x0, 0x0)
keyctl$KEYCTL_RESTRICT_KEYRING(0x1d, r1, &(0x7f0000000000)='asymmetric\x00', &(0x7f0000000040)=@chain)

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}}): mkdirat-openat$fuse-unshare-prlimit64-sched_setscheduler-sched_setparam-sched_setaffinity-syz_open_dev$MSR-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
sched_setparam(0x0, 0x0)
sched_setaffinity(0x0, 0xfffffffffffffd7a, &(0x7f0000000580)=0x8000000002)
r0 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r0, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
single: successfully extracted reproducer
found reproducer with 13 syscalls
minimizing guilty program
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-prlimit64-sched_setscheduler-sched_setparam-sched_setaffinity-syz_open_dev$MSR-read$msr-sigaltstack-gettid-timer_create
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
sched_setparam(0x0, 0x0)
sched_setaffinity(0x0, 0xfffffffffffffd7a, &(0x7f0000000580)=0x8000000002)
r0 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r0, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))

program did not crash
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-prlimit64-sched_setscheduler-sched_setparam-sched_setaffinity-syz_open_dev$MSR-read$msr-sigaltstack-gettid-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
sched_setparam(0x0, 0x0)
sched_setaffinity(0x0, 0xfffffffffffffd7a, &(0x7f0000000580)=0x8000000002)
r0 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r0, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
gettid()
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-prlimit64-sched_setscheduler-sched_setparam-sched_setaffinity-syz_open_dev$MSR-read$msr-sigaltstack-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
sched_setparam(0x0, 0x0)
sched_setaffinity(0x0, 0xfffffffffffffd7a, &(0x7f0000000580)=0x8000000002)
r0 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r0, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-prlimit64-sched_setscheduler-sched_setparam-sched_setaffinity-syz_open_dev$MSR-read$msr-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
sched_setparam(0x0, 0x0)
sched_setaffinity(0x0, 0xfffffffffffffd7a, &(0x7f0000000580)=0x8000000002)
r0 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
read$msr(r0, &(0x7f000001aa40)=""/102392, 0x18ff8)
r1 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-prlimit64-sched_setscheduler-sched_setparam-sched_setaffinity-syz_open_dev$MSR-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
sched_setparam(0x0, 0x0)
sched_setaffinity(0x0, 0xfffffffffffffd7a, &(0x7f0000000580)=0x8000000002)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-prlimit64-sched_setscheduler-sched_setparam-sched_setaffinity-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
sched_setparam(0x0, 0x0)
sched_setaffinity(0x0, 0xfffffffffffffd7a, &(0x7f0000000580)=0x8000000002)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: BUG: workqueue lockup
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-prlimit64-sched_setscheduler-sched_setparam-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
sched_setparam(0x0, 0x0)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-prlimit64-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-unshare-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
unshare(0x20000400)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): mkdirat-openat$fuse-prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
openat$fuse(0xffffffffffffff9c, &(0x7f0000002080), 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
testing program (duration=9m0.700362589s, {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}}): mkdirat-prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000002000)='./file0\x00', 0x190)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing program (duration=9m0.700362589s, {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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=9m0.700362589s, {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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, 0x0, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
read$msr(0xffffffffffffffff, &(0x7f000001aa40)=""/102392, 0x18ff8)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, 0x0, 0x0)
sigaltstack(&(0x7f0000000000)={&(0x7f0000000280)=""/4124, 0x80000001, 0x101c}, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
testing program (duration=9m0.700362589s, {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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, 0x0, 0x0)
sigaltstack(0x0, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
testing program (duration=9m0.700362589s, {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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, 0x0, 0x0)
sigaltstack(0x0, 0x0)
gettid()
timer_create(0x0, 0x0, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, 0x0, 0x0)
sigaltstack(0x0, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, 0x0)
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=9m0.700362589s, {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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, 0x0, 0x0)
sigaltstack(0x0, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=9m0.700362589s, {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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in corrupted
simplifying C reproducer
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=9m0.700362589s, {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-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false 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-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true 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}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, 0x0, 0x0)
sigaltstack(0x0, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, 0x0, 0x0)
sigaltstack(0x0, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x20008b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000640)=0x3)
read$msr(0xffffffffffffffff, 0x0, 0x0)
sigaltstack(0x0, 0x0)
r0 = gettid()
timer_create(0x0, &(0x7f0000000080)={0x0, 0x21, 0x800000000004, @tid=r0}, &(0x7f0000bbdffc))
timer_settime(0x0, 0x0, &(0x7f0000000240)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
reproducing took 3h38m6.892303514s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=10113, q=605 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10500 (4294958898-4294948398), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10500 jiffies! g10113 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:27656 pid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1553/0x45a0 kernel/sched/core.c:6700
 schedule+0xbd/0x170 kernel/sched/core.c:6774
 schedule_timeout+0x188/0x2d0 kernel/time/timer.c:2168
 rcu_gp_fqs_loop+0x313/0x1590 kernel/rcu/tree.c:1667
 rcu_gp_kthread+0x9d/0x3b0 kernel/rcu/tree.c:1866
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5934 Comm: syz.3.21 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline]
RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline]
RIP: 0010:wrmsr arch/x86/include/asm/msr.h:254 [inline]
RIP: 0010:native_apic_msr_write+0x39/0x50 arch/x86/include/asm/apic.h:196
Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 89 f6 31 d2 e9 8b eb 23 03 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc900034a7a70 EFLAGS: 00000046
RAX: 000000000000003e RBX: ffff8880b8f28280 RCX: 0000000000000838
RDX: 0000000000000000 RSI: 000000000000003e RDI: 0000000000000838
RBP: 000000000000003e R08: ffffffff8e8b02af R09: 1ffffffff1d16055
R10: dffffc0000000000 R11: fffffbfff1d16056 R12: ffff8880b8f282c0
R13: ffff8880b8f282b8 R14: 0000000000000020 R15: dffffc0000000000
FS:  00005555864d1500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000bbdffc CR3: 000000007cd63000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 apic_write arch/x86/include/asm/apic.h:404 [inline]
 lapic_next_event+0x11/0x20 arch/x86/kernel/apic/apic.c:448
 clockevents_program_min_delta+0x1a9/0x340 kernel/time/clockevents.c:248
 hrtimer_start_range_ns+0xbfb/0xff0 kernel/time/hrtimer.c:1352
 posixtimer_rearm+0x135/0x340 kernel/time/posix-timers.c:268
 dequeue_signal+0x1ba/0x4b0 kernel/signal.c:706
 get_signal+0x551/0x13f0 kernel/signal.c:2782
 arch_do_signal_or_restart+0xc2/0x800 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
 do_syscall_64+0x61/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fdc9299c819
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffea18fc3b8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 00007fdc92c15fa0 RCX: 00007fdc9299c819
RDX: 0000200000000240 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fdc92a32c91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fdc92c15fac R14: 00007fdc92c15fa0 R15: 00007fdc92c15fa0
 </TASK>

report is corrupted, running repro again
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
testing compiled C program (duration=9m0.700362589s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-read$msr-sigaltstack-gettid-timer_create-timer_settime
program crashed: INFO: rcu detected stall in schedule_tail
final repro crashed as (corrupted=false):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5792/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=8841, q=23 ncpus=2)
task:syz-executor401 state:R  running task     stack:28680 pid:5792  ppid:5770   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1553/0x45a0 kernel/sched/core.c:6700
 preempt_schedule_irq+0xbf/0x150 kernel/sched/core.c:7010
 irqentry_exit+0x67/0x70 kernel/entry/common.c:438
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:lock_is_held_type+0x13e/0x190 kernel/locking/lockdep.c:5830
Code: 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 46 41 f7 c5 00 02 00 00 74 01 fb 65 48 8b 04 25 28 00 00 00 <48> 3b 44 24 08 75 3c 89 e8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc90004787940 EFLAGS: 00000206
RAX: 9b955fa08a09f200 RBX: ffff888024ec0000 RCX: 9b955fa08a09f200
RDX: 0000000000000000 RSI: ffffffff8acadb60 RDI: ffffffff8b1c89a0
RBP: 0000000000000000 R08: dffffc0000000000 R09: 1ffffffff22386a0
R10: dffffc0000000000 R11: fffffbfff22386a1 R12: 0000000000000002
R13: 0000000000000246 R14: ffffffff8d15bb78 R15: ffff888024ec0b30
 lock_is_held include/linux/lockdep.h:288 [inline]
 task_css include/linux/cgroup.h:436 [inline]
 mem_cgroup_from_task+0x77/0x110 mm/memcontrol.c:1038
 get_mem_cgroup_from_mm+0xd6/0x290 mm/memcontrol.c:1091
 __mem_cgroup_charge+0x15/0x80 mm/memcontrol.c:7110
 mem_cgroup_charge include/linux/memcontrol.h:686 [inline]
 wp_page_copy mm/memory.c:3118 [inline]
 do_wp_page+0x14b0/0x35f0 mm/memory.c:3469
 handle_pte_fault mm/memory.c:5063 [inline]
 __handle_mm_fault mm/memory.c:5188 [inline]
 handle_mm_fault+0x135d/0x4c00 mm/memory.c:5353
 do_user_addr_fault+0x730/0x12c0 arch/x86/mm/fault.c:1371
 handle_page_fault arch/x86/mm/fault.c:1463 [inline]
 exc_page_fault+0x64/0x100 arch/x86/mm/fault.c:1516
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:608
RIP: 0010:__put_user_4+0x11/0x20 arch/x86/lib/putuser.S:89
Code: 01 ca c3 90 90 90 90 90 90 f3 0f 1e fa 0f 01 cb 66 89 01 31 c9 0f 01 ca c3 f3 0f 1e fa 48 89 cb 48 c1 fb 3f 48 09 d9 0f 01 cb <89> 01 31 c9 0f 01 ca c3 90 90 90 90 90 90 90 f3 0f 1e fa 0f 01 cb
RSP: 0018:ffffc90004787ef8 EFLAGS: 00050206
RAX: 0000000000000003 RBX: 0000000000000000 RCX: 0000555578759690
RDX: 0000000000000000 RSI: ffffffff8acadb60 RDI: ffffffff8b1c89a0
RBP: 0000000000000000 R08: ffffffff8e8b02af R09: 1ffffffff1d16055
R10: dffffc0000000000 R11: fffffbfff1d16056 R12: 1ffff110049d80d2
R13: 0000000000000000 R14: ffff888024ec0000 R15: dffffc0000000000
 schedule_tail+0x93/0xb0 kernel/sched/core.c:5316
 ret_from_fork+0x24/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
rcu: rcu_preempt kthread starved for 10533 jiffies! g8841 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:27656 pid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5381 [inline]
 __schedule+0x1553/0x45a0 kernel/sched/core.c:6700
 schedule+0xbd/0x170 kernel/sched/core.c:6774
 schedule_timeout+0x188/0x2d0 kernel/time/timer.c:2168
 rcu_gp_fqs_loop+0x313/0x1590 kernel/rcu/tree.c:1667
 rcu_gp_kthread+0x9d/0x3b0 kernel/rcu/tree.c:1866
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 PID: 5791 Comm: syz-executor401 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:160 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:202
Code: 00 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 5a fd d8 f6 48 89 df e8 12 d2 d9 f6 e8 dd e2 fd f6 fb bf 01 00 00 00 <e8> f2 d8 cc f6 65 8b 05 63 06 74 75 85 c0 74 02 5b c3 e8 e0 ed 70
RSP: 0018:ffffc90004777c78 EFLAGS: 00000286
RAX: bd3287ca134bc100 RBX: ffff88802abedc80 RCX: bd3287ca134bc100
RDX: dffffc0000000000 RSI: ffffffff8acac9e0 RDI: 0000000000000001
RBP: ffff88802abee118 R08: ffffffff8e8b02af R09: 1ffffffff1d16055
R10: dffffc0000000000 R11: fffffbfff1d16056 R12: 1ffff1100557dc23
R13: 0000000000000021 R14: dffffc0000000000 R15: 0000000000000000
FS:  00005555787593c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000bbdffc CR3: 000000002eab7000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 spin_unlock_irq include/linux/spinlock.h:401 [inline]
 get_signal+0x11f5/0x13f0 kernel/signal.c:2905
 arch_do_signal_or_restart+0xc2/0x800 arch/x86/kernel/signal.c:310
 exit_to_user_mode_loop+0x70/0x110 kernel/entry/common.c:174
 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
 __syscall_exit_to_user_mode_work kernel/entry/common.c:291 [inline]
 syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:302
 do_syscall_64+0x61/0xa0 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fbc211c6bee
Code: 08 0f 85 45 e1 ff ff 49 89 fb 48 89 f0 48 89 d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 90 41 57 41 56 4d 89 c6 41 55 4d 89 cd 41 54 55 53 48 83 ec 08
RSP: 002b:00007ffd512d1f98 EFLAGS: 00000246
RAX: fffffffffffffff7 RBX: 00005555787593c0 RCX: 00007fbc211c6bee
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000013
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fbc212300b2
R13: 00007fbc2122e12a R14: 00007ffd512d2030 R15: 0000000000000000
 </TASK>