Extracting prog: 2m45.641776587s Minimizing prog: 1h19m45.015633491s Simplifying prog options: 0s Extracting C: 2m35.606148163s Simplifying C: 25m44.083626567s extracting reproducer from 66 programs first checking the prog from the crash report single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime-mmap-timerfd_create-read-clock_gettime-timerfd_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) r1 = timerfd_create(0x0, 0x0) read(r1, &(0x7f0000002180)=""/257, 0x101) clock_gettime(0x0, &(0x7f0000000000)={0x0, 0x0}) timerfd_settime(r1, 0x3, &(0x7f0000000080)={{}, {r2, r3+60000000}}, 0x0) program crashed: INFO: rcu detected stall in exit_to_user_mode_loop single: successfully extracted reproducer found reproducer with 11 syscalls minimizing guilty program testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime-mmap-timerfd_create-read-clock_gettime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) r1 = timerfd_create(0x0, 0x0) read(r1, &(0x7f0000002180)=""/257, 0x101) clock_gettime(0x0, &(0x7f0000000000)) program crashed: INFO: rcu detected stall in timerfd_read_iter testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime-mmap-timerfd_create-read detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) r1 = timerfd_create(0x0, 0x0) read(r1, &(0x7f0000002180)=""/257, 0x101) program crashed: INFO: rcu detected stall in corrupted testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime-mmap-timerfd_create detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) timerfd_create(0x0, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime-mmap detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xfc778000) program crashed: INFO: rcu detected stall in inet6_rtm_newaddr testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(0x0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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}}): sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, 0x0, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, 0x0) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, 0x0, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, 0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(0x0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, 0x0) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program did not crash testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted simplifying C reproducer testing compiled C program (duration=5m13.338980788s, {Threaded:false Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-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=5m13.338980788s, {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-timer_create-fcntl$lock-mprotect-timer_settime program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: BUG: workqueue lockup a never seen crash title: BUG: workqueue lockup, ignore testing compiled C program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true testing program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x400000000008d}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2, @thr={0x0, 0x0}}, &(0x7f0000000440)=0x0) fcntl$lock(0xffffffffffffffff, 0x7, &(0x7f0000000040)={0x0, 0x0, 0x8000, 0x3ff}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x9) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x77359400}}, 0x0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true reproducing took 1h59m7.134869685s repro crashed as (corrupted=true): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: (detected by 1, t=10502 jiffies, g=20393, q=774 ncpus=2) rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294965289-4294954786), jiffies_till_next_fqs=1, root ->qsmask 0x0 rcu: rcu_preempt kthread starved for 10504 jiffies! g20393 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:27496 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5583 [inline] __schedule+0x17dd/0x5820 kernel/sched/core.c:7382 __schedule_loop kernel/sched/core.c:7459 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7474 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 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 6201 Comm: syz.3.20 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026 RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline] RIP: 0010:rcu_is_watching+0x3b/0xb0 kernel/rcu/tree.c:753 Code: e8 ba f9 54 0a 89 c3 83 f8 08 73 66 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd d0 67 97 8e 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 <74> 08 4c 89 f7 e8 6b 6d 92 00 48 c7 c3 98 3d c1 94 49 03 1e 48 89 RSP: 0000:ffffc90003cb7bf0 EFLAGS: 00000046 RAX: 1ffffffff1d2ecfa RBX: 0000000000000000 RCX: 8000000001000002 RDX: 0000000000000000 RSI: ffffffff8c8e8c60 RDI: ffffffff8c8e8c20 RBP: ffff88807f148118 R08: 0000000000000001 R09: 0000000000000000 R10: dffffc0000000000 R11: ffffffff81b825d0 R12: ffff88807f148058 R13: 0000000000000000 R14: ffffffff8e9767d0 R15: dffffc0000000000 FS: 00007fe6716486c0(0000) GS:ffff888123620000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000058 CR3: 00000000777d3000 CR4: 0000000000350ef0 Call Trace: trace_lock_acquire include/trace/events/lock.h:23 [inline] lock_acquire+0x58/0x350 kernel/locking/lockdep.c:5905 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:155 [inline] _raw_spin_lock_irqsave+0x40/0x60 kernel/locking/spinlock.c:181 class_spinlock_irqsave_constructor include/linux/spinlock.h:643 [inline] posix_timer_fn+0x2f/0x190 kernel/time/posix-timers.c:379 __run_hrtimer kernel/time/hrtimer.c:2075 [inline] __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2132 hrtimer_interrupt+0x4cd/0xaa0 kernel/time/hrtimer.c:2251 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline] __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline] sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1062 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0033:0x7fe6707bead0 Code: 83 c0 16 83 e0 f7 74 12 50 48 8d 3d 52 33 07 00 e8 65 65 f9 ff 0f 1f 44 00 00 c3 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 <83> ff 21 74 0b c3 66 2e 0f 1f 84 00 00 00 00 00 55 53 48 89 f3 48 RSP: 002b:00007fe671647b38 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 00007fe670a25fa8 RCX: 00007fe67079f559 RDX: 00007fe671647b40 RSI: 00007fe671647c70 RDI: 0000000000000021 RBP: 00007fe670a25fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe670a26038 R14: 00007fffe5862420 R15: 00007fffe5862508 report is corrupted, running repro again testing compiled C program (duration=5m13.338980788s, {Threaded:true Repeat:true RepeatTimes:0 Procs:6 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:false Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-fcntl$lock-mprotect-timer_settime program crashed: INFO: rcu detected stall in sys_clone 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): P4996/1:b..l.. rcu: (detected by 1, t=10503 jiffies, g=13165, q=160 ncpus=2) task:udevd state:R running task stack:25576 pid:4996 tgid:4996 ppid:1 task_flags:0x400140 flags:0x00080800 Call Trace: context_switch kernel/sched/core.c:5583 [inline] __schedule+0x17dd/0x5820 kernel/sched/core.c:7382 preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7662 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline] irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:154 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947 Code: ff ff ff e8 b0 32 5e 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 b2 dc 1b 13 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 7a 1d 6c ff cc 48 8d 3d 37 87 fc RSP: 0018:ffffc90003dff160 EFLAGS: 00000296 RAX: 6f342409cff2f300 RBX: 0000000000000000 RCX: 0000000000000046 RDX: 00000000acbd8123 RSI: ffffffff8e92d156 RDI: ffffffff8c8e8c80 RBP: ffff88807fe71f40 R08: ffffffff817879cf R09: 0000000000000000 R10: dffffc0000000000 R11: ffffffff81b3aef0 R12: ffffffff8ff5a320 R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000246 rcu_lock_acquire include/linux/rcupdate.h:309 [inline] rcu_read_lock include/linux/rcupdate.h:849 [inline] class_rcu_constructor include/linux/rcupdate.h:1216 [inline] unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:57 [inline] kasan_save_track+0x3e/0x80 mm/kasan/common.c:78 unpoison_slab_object mm/kasan/common.c:351 [inline] __kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:377 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4720 [inline] slab_alloc_node mm/slub.c:5033 [inline] kmem_cache_alloc_noprof+0x2b4/0x600 mm/slub.c:5047 anon_vma_chain_alloc mm/rmap.c:142 [inline] anon_vma_clone+0x3b1/0xa20 mm/rmap.c:344 anon_vma_fork+0x129/0x4d0 mm/rmap.c:406 dup_mmap+0x9a8/0x1e10 mm/mmap.c:1781 dup_mm kernel/fork.c:1542 [inline] copy_mm+0x115/0x470 kernel/fork.c:1594 copy_process+0x1ecc/0x44b0 kernel/fork.c:2320 kernel_clone+0x2d7/0x940 kernel/fork.c:2784 __do_sys_clone kernel/fork.c:2926 [inline] __se_sys_clone kernel/fork.c:2910 [inline] __x64_sys_clone+0x1b6/0x230 kernel/fork.c:2910 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: 0033:0x7f91fb412636 RSP: 002b:00007ffd46304f30 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007ffd46304f38 RCX: 00007f91fb412636 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 000055fd2c2aa910 R08: 0000000000000000 R09: 000055fd2c2b28e0 R10: 00007f91fad9bb50 R11: 0000000000000246 R12: 00007ffd463052f0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 rcu: rcu_preempt kthread starved for 10558 jiffies! g13165 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:27752 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5583 [inline] __schedule+0x17dd/0x5820 kernel/sched/core.c:7382 __schedule_loop kernel/sched/core.c:7459 [inline] schedule+0x164/0x2b0 kernel/sched/core.c:7474 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 rcu: Stack dump where RCU GP kthread last ran: CPU: 1 UID: 0 PID: 5667 Comm: syz-executor279 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026 RIP: 0010:x86_task_fpu+0x3f/0x90 arch/x86/kernel/fpu/core.c:63 Code: 89 f0 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 40 41 8b 2e 89 ee 81 e6 00 00 20 00 31 ff e8 81 8d 5b 00 <81> e5 00 00 20 00 75 19 e8 64 88 5b 00 48 81 c3 80 1a 00 00 48 89 RSP: 0018:ffffc9000397faa0 EFLAGS: 00000293 RAX: ffffffff816d8b7f RBX: ffff88807fe99f40 RCX: 0000000000000000 RDX: ffff88807fe99f40 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000400140 R08: ffffc9000397fddf R09: 1ffff9200072ffbb R10: dffffc0000000000 R11: fffff5200072ffbc R12: 000000000000002b R13: 00007f083be3fd40 R14: ffff88807fe99f6c R15: dffffc0000000000 FS: 00007f083be406c0(0000) GS:ffff888123720000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000058 CR3: 000000007470a000 CR4: 0000000000350ef0 Call Trace: fpu__restore_sig+0xc0/0x14f0 arch/x86/kernel/fpu/signal.c:464 restore_sigcontext arch/x86/kernel/signal_64.c:95 [inline] __ia32_sys_rt_sigreturn+0x6d8/0x860 arch/x86/kernel/signal_64.c:266 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: 0033:0x7f083be70c17 Code: 00 85 c0 79 93 eb d5 48 8d 7c 1d 00 eb 99 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 d0 ff ff ff f7 d8 64 89 RSP: 002b:00007f083be40138 EFLAGS: 00000246 RAX: 00000000000000ca RBX: 00007f083bf1ab48 RCX: 00007f083be70c19 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f083bf1ab48 RBP: 00007f083bf1ab40 R08: 00007f083be40cdc R09: 00007f083be40cdc R10: 0000000000000000 R11: 0000000000000246 R12: 00007f083bf1ab4c R13: 0000000000000000 R14: 00007ffd74c1fc70 R15: 00007ffd74c1fd58