Extracting prog: 3m48.868503894s
Minimizing prog: 1h39m43.685594495s
Simplifying prog options: 9m52.14785817s
Extracting C: 4m58.545985994s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-kcmp-gettid-timer_create-fcntl$lock-mprotect-timer_settime-socket$packet-openat$cgroup_ro-mmap
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
kcmp(0x0, r1, 0x6, 0xffffffffffffffff, 0xffffffffffffffff)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)
socket$packet(0x11, 0x2, 0x300)
openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0)
mmap(&(0x7f0000000000/0xfbe000)=nil, 0xfbe000, 0x2, 0x31, 0xffffffffffffffff, 0x0)

program crashed: INFO: rcu detected stall in rtnl_newlink
single: successfully extracted reproducer
found reproducer with 19 syscalls
minimizing guilty program
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-kcmp-gettid-timer_create-fcntl$lock-mprotect-timer_settime-socket$packet-openat$cgroup_ro
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
kcmp(0x0, r1, 0x6, 0xffffffffffffffff, 0xffffffffffffffff)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)
socket$packet(0x11, 0x2, 0x300)
openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0)

program crashed: INFO: rcu detected stall in sys_openat
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-kcmp-gettid-timer_create-fcntl$lock-mprotect-timer_settime-socket$packet
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
kcmp(0x0, r1, 0x6, 0xffffffffffffffff, 0xffffffffffffffff)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)
socket$packet(0x11, 0x2, 0x300)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-kcmp-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
kcmp(0x0, r1, 0x6, 0xffffffffffffffff, 0xffffffffffffffff)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in do_idle
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-kcmp-gettid-timer_create-fcntl$lock-mprotect
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
kcmp(0x0, r1, 0x6, 0xffffffffffffffff, 0xffffffffffffffff)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)

program did not crash
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-kcmp-gettid-timer_create-fcntl$lock-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
kcmp(0x0, r1, 0x6, 0xffffffffffffffff, 0xffffffffffffffff)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-kcmp-gettid-timer_create-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
kcmp(0x0, r1, 0x6, 0xffffffffffffffff, 0xffffffffffffffff)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-kcmp-gettid-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
kcmp(0x0, r1, 0x6, 0xffffffffffffffff, 0xffffffffffffffff)
gettid()
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-kcmp-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
kcmp(0x0, r1, 0x6, 0xffffffffffffffff, 0xffffffffffffffff)
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-syz_open_dev$MSR-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in dentry_kill
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-syz_clone-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-mmap-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-sched_setscheduler-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x3)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-sched_setscheduler-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in exit_to_user_mode_loop
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-prlimit64-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-getdents64-sched_setscheduler-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
r0 = open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
getdents64(r0, 0x0, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r1 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r1, 0x1, 0x0)
r2 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r2}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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$UFFDIO_API-open-prlimit64-sched_setscheduler-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
open(&(0x7f0000000040)='.\x00', 0x163100, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
testing program (duration=4m49.502801862s, {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$UFFDIO_API-prlimit64-sched_setscheduler-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, 0x0, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, 0x0)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
gettid()
timer_create(0x0, 0x0, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, 0x0)
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, 0x0)
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
program did not crash
simplifying guilty program options
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program did not crash
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in sys_readlink
validation run: crashed=true
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in exit_to_user_mode_loop
validation run: crashed=true
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
reproducing took 2h6m22.350847228s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	(detected by 0, t=10502 jiffies, g=14925, q=1218 ncpus=2)
rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294960037-4294949534), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10504 jiffies! g14925 f0x2 RCU_GP_WAIT_FQS(5) ->state=R ->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:27752 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5535 [inline]
 __schedule+0x1b47/0x5c60 kernel/sched/core.c:7305
 preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7484
 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline]
 _raw_spin_unlock_irqrestore+0x76/0x80 kernel/locking/spinlock.c:221
 debug_object_free+0x294/0x340 lib/debugobjects.c:1038
 schedule_timeout+0x162/0x2c0 kernel/time/sleep_timeout.c:103
 rcu_gp_fqs_loop+0x30c/0x1230 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 5995 Comm: syz.2.29 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:220 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x29/0x50 kernel/locking/spinlock.c:229
Code: 90 f3 0f 1e fa 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 da b5 a2 f5 48 89 df e8 92 2d a3 f5 e8 8d b5 cf f5 fb bf 01 00 00 00 <e8> 92 2c 94 f5 65 48 8b 05 0a 80 dd 07 48 85 c0 74 07 5b e9 cf 49
RSP: 0018:ffffc90003797c78 EFLAGS: 00000202
RAX: 0000000004664bad RBX: ffff888036333780 RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff8e74b702 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff90bc74bf R09: 1ffffffff2178e97
R10: dffffc0000000000 R11: fffffbfff2178e98 R12: 0000000000000011
R13: ffff888036333a18 R14: 0000000004000000 R15: dffffc0000000000
FS:  00007f3a5654f6c0(0000) GS:ffff88812462e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000058 CR3: 0000000071576000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 spin_unlock_irq include/linux/spinlock.h:413 [inline]
 get_signal+0x1131/0x12c0 kernel/signal.c:3115
 arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
 __exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
 exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
 do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3a5559e159
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:00007f3a5654f0e8 EFLAGS: 00000246
RAX: fffffffffffffffc RBX: 00007f3a55825fa8 RCX: 00007f3a5559e159
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f3a55825fa8
RBP: 00007f3a55825fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3a55826038 R14: 00007ffe24c72740 R15: 00007ffe24c72828
 </TASK>

report is corrupted, running repro again
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
testing program (duration=4m49.502801862s, {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-syz_clone-prctl$PR_SCHED_CORE-gettid-timer_create-fcntl$lock-mprotect-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x2000800001000088}, 0x0)
sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7)
r0 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, r0, 0x1, 0x0)
r1 = gettid()
timer_create(0x0, &(0x7f0000533fa0)={0x0, 0x11, 0x800000000004, @tid=r1}, &(0x7f0000bbdffc))
fcntl$lock(0xffffffffffffffff, 0x26, &(0x7f0000000040)={0x0, 0x0, 0x60d3, 0x1})
mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1)
timer_settime(0x0, 0x1, &(0x7f0000000040)={{0x77359400}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
final repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5778/1:b..l..
rcu: 	(detected by 1, t=10503 jiffies, g=14801, q=1060 ncpus=2)
task:syz-executor    state:R  running task     stack:22312 pid:5778  tgid:5778  ppid:5774   task_flags:0x400140 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5535 [inline]
 __schedule+0x1b47/0x5c60 kernel/sched/core.c:7305
 preempt_schedule_common+0x7f/0xd0 kernel/sched/core.c:7484
 preempt_schedule_thunk+0x16/0x40 arch/x86/entry/thunk.S:12
 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:211 [inline]
 _raw_spin_unlock_irqrestore+0x76/0x80 kernel/locking/spinlock.c:221
 spin_unlock_irqrestore include/linux/spinlock.h:425 [inline]
 lruvec_unlock_irqrestore include/linux/memcontrol.h:1577 [inline]
 folios_put_refs+0x8b0/0xb30 mm/folio.c:1031
 folio_batch_release include/linux/folio_batch.h:101 [inline]
 shmem_undo_range+0x4f1/0x16d0 mm/shmem.c:1371
 shmem_truncate_range mm/shmem.c:1499 [inline]
 shmem_evict_inode+0x240/0xb00 mm/shmem.c:1630
 evict+0x624/0xb50 fs/inode.c:823
 filename_unlinkat+0x43f/0x610 fs/namei.c:5734
 __do_sys_unlink fs/namei.c:5765 [inline]
 __se_sys_unlink+0x2e/0x140 fs/namei.c:5762
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fc79219d247
RSP: 002b:00007ffdfe64fd48 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc79219d247
RDX: 00007ffdfe64fd70 RSI: 00007ffdfe64fe00 RDI: 00007ffdfe64fe00
RBP: 00007ffdfe64fe00 R08: 00007ffdfe650e00 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffdfe650e90
R13: 00007fc7922344bb R14: 0000000000022c71 R15: 00007ffdfe650ed0
 </TASK>
rcu: rcu_preempt kthread starved for 10530 jiffies! g14801 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->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:27696 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5535 [inline]
 __schedule+0x1b47/0x5c60 kernel/sched/core.c:7305
 __schedule_loop kernel/sched/core.c:7382 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7397
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x1230 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 77 Comm: kworker/u8:5 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue:  0x0 (events_unbound)
RIP: 0010:finish_task_switch+0x413/0xc60 kernel/sched/core.c:5386
Code: 04 00 00 41 c7 84 24 20 0e 00 00 00 00 00 00 e9 db 06 00 00 49 83 c4 48 4c 89 e7 e8 c7 af 6a 0a e8 62 66 3a 00 fb 4c 8b 65 c8 <49> 8d bc 24 18 17 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0
RSP: 0018:ffffc9000205fa60 EFLAGS: 00000206
RAX: 000000000001f7dd RBX: ffff8880b853cf60 RCX: 8000000000000001
RDX: 0000000000000000 RSI: ffffffff8e74b702 RDI: ffffffff8c8f2680
RBP: ffffc9000205fab0 R08: ffffffff90bc74bf R09: 1ffffffff2178e97
R10: dffffc0000000000 R11: fffffbfff2178e98 R12: ffff88801df69f40
R13: ffff8880b853cf28 R14: dffffc0000000000 R15: 1ffff110170a79ec
FS:  0000000000000000(0000) GS:ffff88812472e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000000058 CR3: 000000007f2da000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5538 [inline]
 __schedule+0x1b4f/0x5c60 kernel/sched/core.c:7305
 __schedule_loop kernel/sched/core.c:7382 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7397
 worker_thread+0xc12/0xfb0 kernel/workqueue.c:3674
 kthread+0x38b/0x480 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>