Extracting prog: 3m35.806686577s Minimizing prog: 1h38m4.518826813s Simplifying prog options: 0s Extracting C: 2m14.612437809s Simplifying C: 17m58.142839049s extracting reproducer from 30 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:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone-clock_gettime-clock_nanosleep-socket-socketpair$unix-mkdir-inotify_init1-inotify_add_watch-inotify_add_watch-lsetxattr$security_capability detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) clock_gettime(0x0, 0x0) clock_nanosleep(0x2, 0x0, 0x0, 0xfffffffffffffffe) socket(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)) mkdir(&(0x7f0000000400)='./file0\x00', 0x1) r3 = inotify_init1(0x800) inotify_add_watch(r3, &(0x7f0000000240)='.\x00', 0x50000048) inotify_add_watch(r3, &(0x7f0000005780)='./file0\x00', 0x9600006f) lsetxattr$security_capability(&(0x7f0000000000)='./file0\x00', &(0x7f0000000040), 0x0, 0x0, 0x0) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode single: successfully extracted reproducer found reproducer with 20 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone-clock_gettime-clock_nanosleep-socket-socketpair$unix-mkdir-inotify_init1-inotify_add_watch-inotify_add_watch detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) clock_gettime(0x0, 0x0) clock_nanosleep(0x2, 0x0, 0x0, 0xfffffffffffffffe) socket(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)) mkdir(&(0x7f0000000400)='./file0\x00', 0x1) r3 = inotify_init1(0x800) inotify_add_watch(r3, &(0x7f0000000240)='.\x00', 0x50000048) inotify_add_watch(r3, &(0x7f0000005780)='./file0\x00', 0x9600006f) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone-clock_gettime-clock_nanosleep-socket-socketpair$unix-mkdir-inotify_init1-inotify_add_watch detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) clock_gettime(0x0, 0x0) clock_nanosleep(0x2, 0x0, 0x0, 0xfffffffffffffffe) socket(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)) mkdir(&(0x7f0000000400)='./file0\x00', 0x1) r3 = inotify_init1(0x800) inotify_add_watch(r3, &(0x7f0000000240)='.\x00', 0x50000048) program crashed: INFO: rcu detected stall in syscall_enter_from_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone-clock_gettime-clock_nanosleep-socket-socketpair$unix-mkdir-inotify_init1 detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) clock_gettime(0x0, 0x0) clock_nanosleep(0x2, 0x0, 0x0, 0xfffffffffffffffe) socket(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)) mkdir(&(0x7f0000000400)='./file0\x00', 0x1) inotify_init1(0x800) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone-clock_gettime-clock_nanosleep-socket-socketpair$unix-mkdir detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) clock_gettime(0x0, 0x0) clock_nanosleep(0x2, 0x0, 0x0, 0xfffffffffffffffe) socket(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)) mkdir(&(0x7f0000000400)='./file0\x00', 0x1) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone-clock_gettime-clock_nanosleep-socket-socketpair$unix detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) clock_gettime(0x0, 0x0) clock_nanosleep(0x2, 0x0, 0x0, 0xfffffffffffffffe) socket(0x10, 0x3, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000080)) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone-clock_gettime-clock_nanosleep-socket detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) clock_gettime(0x0, 0x0) clock_nanosleep(0x2, 0x0, 0x0, 0xfffffffffffffffe) socket(0x10, 0x3, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone-clock_gettime-clock_nanosleep detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) clock_gettime(0x0, 0x0) clock_nanosleep(0x2, 0x0, 0x0, 0xfffffffffffffffe) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone-clock_gettime detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) clock_gettime(0x0, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice-syz_clone detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) syz_clone(0x1222080, 0x0, 0x0, 0x0, 0x0, 0x0) program crashed: INFO: rcu detected stall in cleanup_net testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe-splice detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}) pipe(&(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) splice(r1, 0x0, r2, 0x0, 0x7, 0x0) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix-pipe detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)) pipe(&(0x7f0000000200)) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-socketpair$unix detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000240)) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_create detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-sched_setscheduler-timer_settime detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x6) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-getpid-timer_create-timer_settime detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) r0 = getpid() timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=r0}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-add_key$fscrypt_v1-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) add_key$fscrypt_v1(&(0x7f0000000440), 0x0, 0x0, 0x0, 0xfffffffffffffffe) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): add_key$keyring-prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: add_key$keyring(&(0x7f0000000100), &(0x7f0000000140)={'syz', 0x3}, 0x0, 0x0, 0xfffffffffffffffe) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, 0x0, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, 0x0) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, 0x0, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, 0x0) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, 0x0, 0x0) program crashed: lost connection to test machine suppressed program crash: lost connection to test machine extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode simplifying C reproducer testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime program crashed: INFO: rcu detected stall in sys_rt_sigreturn a never seen crash title: INFO: rcu detected stall in sys_rt_sigreturn, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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-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=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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-timer_settime program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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-timer_settime program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program crashed: WARNING in __cfg80211_ibss_joined validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program crashed: INFO: rcu detected stall in sys_newfstatat validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime detailed listing: executing program 0: prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x87}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x6) timer_create(0x0, &(0x7f0000000680)={0x0, 0x21}, &(0x7f0000000100)) timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true reproducing took 2h9m14.903217695s repro crashed as (corrupted=true): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 1, t=10502 jiffies, g=10353, q=273) rcu: All QSes seen, last rcu_preempt kthread activity 10503 (4294958256-4294947753), jiffies_till_next_fqs=1, root ->qsmask 0x0 rcu: rcu_preempt kthread starved for 10505 jiffies! g10353 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:27384 pid: 15 ppid: 2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5049 [inline] __schedule+0x11ef/0x43c0 kernel/sched/core.c:6395 schedule+0x11b/0x1e0 kernel/sched/core.c:6478 schedule_timeout+0x184/0x2d0 kernel/time/timer.c:2117 rcu_gp_fqs_loop+0x2be/0x11d0 kernel/rcu/tree.c:1972 rcu_gp_kthread+0x9b/0x370 kernel/rcu/tree.c:2145 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4399 Comm: syz.0.28 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:entry_SYSCALL_64_after_hwframe+0x57/0xd0 Code: 45 31 e4 45 31 ed 45 31 f6 45 31 ff 48 89 e7 48 63 f0 66 90 b9 48 00 00 00 65 48 8b 14 25 e8 6f 02 00 89 d0 48 c1 ea 20 0f 30 <0f> 1f 44 00 00 e8 ab 12 00 00 e8 46 f0 db ff 0f 1f 44 00 00 48 8b RSP: 0018:ffffc9000349ff58 EFLAGS: 00000046 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000000048 RDX: 0000000000000000 RSI: 0000000000000027 RDI: ffffc9000349ff58 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fa8a37a86c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000006b000 CR3: 000000002a324000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: RIP: 0033:0x7fa8a4140417 Code: 8d 3d fa 8a 0b 00 e8 58 1d fa ff e8 63 87 00 00 0f 1f 00 b8 68 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 b8 27 00 00 00 0f 05 0f 1f 84 00 00 00 00 00 b8 6e 00 00 00 0f 05 c3 0f 1f 84 00 00 RSP: 002b:00007fa8a37a7b08 EFLAGS: 00000202 ORIG_RAX: 0000000000000027 RAX: ffffffffffffffda RBX: 00007fa8a37a7c70 RCX: 00007fa8a4140417 RDX: 00007fa8a37a7b40 RSI: 00007fa8a37a7c70 RDI: 0000000000000021 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 00007fa8a43c0038 R14: 00007ffda00c9b70 R15: 00007ffda00c9c58 sched: RT throttling activated report is corrupted, running repro again testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime program did not crash report is corrupted, running repro again testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime program crashed: INFO: rcu detected stall in corrupted report is corrupted, running repro again testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime program crashed: INFO: rcu detected stall in corrupted final repro crashed as (corrupted=true): rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 1, t=10502 jiffies, g=3897, q=36) rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294958350-4294947848), jiffies_till_next_fqs=1, root ->qsmask 0x0 rcu: rcu_preempt kthread starved for 10502 jiffies! g3897 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:28016 pid: 15 ppid: 2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5049 [inline] __schedule+0x11ef/0x43c0 kernel/sched/core.c:6395 schedule+0x11b/0x1e0 kernel/sched/core.c:6478 schedule_timeout+0x184/0x2d0 kernel/time/timer.c:2117 rcu_gp_fqs_loop+0x2be/0x11d0 kernel/rcu/tree.c:1972 rcu_gp_kthread+0x9b/0x370 kernel/rcu/tree.c:2145 kthread+0x436/0x520 kernel/kthread.c:334 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 4216 Comm: syz-executor419 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:212 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:156 [inline] RIP: 0010:wrmsr arch/x86/include/asm/msr.h:263 [inline] RIP: 0010:native_apic_msr_write+0x35/0x50 arch/x86/include/asm/apic.h:208 Code: 74 2a 83 ff 30 74 25 eb 10 81 ff d0 00 00 00 74 1b 81 ff e0 00 00 00 74 13 c1 ef 04 81 c7 00 08 00 00 89 f9 89 f0 31 d2 0f 30 <66> 90 c3 89 f6 31 d2 e9 2f 4b d0 02 66 2e 0f 1f 84 00 00 00 00 00 RSP: 0018:ffffc90002faf9d8 EFLAGS: 00000046 RAX: 000000000000003e RBX: 000000000000003e RCX: 0000000000000838 RDX: 0000000000000000 RSI: 000000000000003e RDI: 0000000000000838 RBP: 000000000000003e R08: ffffffff8d89dc2f R09: 1ffffffff1b13b85 R10: dffffc0000000000 R11: fffffbfff1b13b86 R12: ffff8880b90272c0 R13: ffff8880b90272b8 R14: ffffffff8be309d8 R15: dffffc0000000000 FS: 00007fa54ab396c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000006b000 CR3: 0000000022ca9000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: apic_write arch/x86/include/asm/apic.h:395 [inline] lapic_next_event+0x5b/0x70 arch/x86/kernel/apic/apic.c:468 clockevents_program_min_delta+0x1a9/0x340 kernel/time/clockevents.c:248 hrtimer_start_range_ns+0xa9a/0xc20 kernel/time/hrtimer.c:1287 posixtimer_rearm+0x131/0x340 kernel/time/posix-timers.c:329 dequeue_signal+0x174/0x440 kernel/signal.c:696 get_signal+0x6fe/0x12c0 kernel/signal.c:2781 arch_do_signal_or_restart+0xe7/0x12c0 arch/x86/kernel/signal.c:867 handle_signal_work kernel/entry/common.c:154 [inline] exit_to_user_mode_loop+0x9e/0x130 kernel/entry/common.c:178 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline] syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fa54ab59017 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:00007fa54ab39218 EFLAGS: 00000246 RAX: 00000000000000ca RBX: 00007fa54ac09b28 RCX: 00007fa54ab59019 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fa54ac09b28 RBP: 00007fa54ac09b20 R08: 34203a6b63617473 R09: 34203a6b63617473 R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000140 R13: 000020000006b000 R14: 0000200000000100 R15: 0000200000000680