Extracting prog: 17m17.914728223s Minimizing prog: 1h51m27.51242121s Simplifying prog options: 0s Extracting C: 2m23.380687062s Simplifying C: 26m7.107497965s extracting reproducer from 31 programs testing a last program of every proc single: executing 6 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_open_dev$vim2m-prlimit64-sched_setscheduler-getpid-sched_setscheduler-mmap-socketpair$unix-connect$unix-sendmmsg$unix-sched_setscheduler-openat$cgroup_ro-socketpair$unix-bpf$MAP_CREATE-socket$netlink-openat$ptmx-ioctl$TIOCSETD-write$binfmt_aout-ioctl$TCFLSH detailed listing: executing program 0: syz_open_dev$vim2m(0x0, 0x4003, 0x2) prlimit64(0x0, 0xe, &(0x7f0000000140)={0x8, 0x88}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000240)=0x7) r0 = getpid() sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x7) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000200)={0xffffffffffffffff, 0xffffffffffffffff}) connect$unix(r1, &(0x7f000057eff8)=@abs, 0x6e) sendmmsg$unix(r2, &(0x7f0000000000), 0x651, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000000)=0x6) openat$cgroup_ro(0xffffffffffffff9c, &(0x7f0000000240)='devices.list\x00', 0x26e1, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000040)) bpf$MAP_CREATE(0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="0f00000004000000040000001200000000000000", @ANYRES32, @ANYBLOB='\x00'/20, @ANYRES32=0x0, @ANYRES32, @ANYBLOB="00000000000000e3ffffff00"/28], 0x48) socket$netlink(0x10, 0x3, 0xf) r3 = openat$ptmx(0xffffffffffffff9c, &(0x7f00000000c0), 0x123f41, 0x0) ioctl$TIOCSETD(r3, 0x5423, &(0x7f0000000040)=0xd) write$binfmt_aout(r3, &(0x7f0000000280)=ANY=[], 0xff2e) ioctl$TCFLSH(r3, 0x540b, 0x1) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpgrp-sched_setaffinity-prlimit64-sched_setscheduler-prctl$PR_SCHED_CORE-ptrace$ARCH_SHSTK_DISABLE-getpid-sched_setscheduler-mmap-syz_clone-prctl$PR_SCHED_CORE-socket$kcm-sendmsg$inet-syz_open_dev$MSR-read$msr-bpf$MAP_CREATE detailed listing: executing program 0: r0 = getpgrp(0x0) sched_setaffinity(r0, 0x8, &(0x7f0000000040)=0x5) prlimit64(0x0, 0xe, &(0x7f0000000100)={0x8, 0x80000100008b}, 0x0) sched_setscheduler(0x0, 0x1, &(0x7f0000000300)=0x7) prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0) ptrace$ARCH_SHSTK_DISABLE(0x1e, r0, 0x2, 0x5002) r1 = getpid() sched_setscheduler(r1, 0x2, &(0x7f0000000000)=0x6) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0xb635773f06ebbeee, 0x8031, 0xffffffffffffffff, 0x0) r2 = syz_clone(0x8000, 0x0, 0xfffffffffffffe7e, 0x0, 0x0, 0x0) prctl$PR_SCHED_CORE(0x3e, 0x1, r2, 0x1, 0x0) r3 = socket$kcm(0xa, 0x2, 0x73) sendmsg$inet(r3, 0x0, 0x0) r4 = syz_open_dev$MSR(&(0x7f00000001c0), 0x0, 0x0) read$msr(r4, &(0x7f0000019680)=""/102392, 0x18ff8) bpf$MAP_CREATE(0x0, &(0x7f0000000200)=ANY=[@ANYBLOB="1000000004000000040000000200000000000000", @ANYRES32=0x1, @ANYRES32=0x0, @ANYRES32], 0x50) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$phonet_pipe-timer_create-fcntl$lock-prlimit64-sched_setscheduler-getpid-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-ioctl$FE_GET_EVENT-mprotect-timer_settime-mmap detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) getpid() r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f00000001c0)={0x0, {0x0, 0x0, @qam}}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) mmap(&(0x7f0000000000/0x200000)=nil, 0x200000, 0x300000b, 0x204031, 0xffffffffffffffff, 0xec776000) program crashed: INFO: rcu detected stall in corrupted single: successfully extracted reproducer found reproducer with 12 syscalls minimizing guilty program 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}}): socket$phonet_pipe-timer_create-fcntl$lock-prlimit64-sched_setscheduler-getpid-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) getpid() r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f00000001c0)={0x0, {0x0, 0x0, @qam}}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted 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}}): socket$phonet_pipe-timer_create-fcntl$lock-prlimit64-sched_setscheduler-getpid-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-ioctl$FE_GET_EVENT-mprotect detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) getpid() r0 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r0, 0x80286f4e, &(0x7f0000000100)) ioctl$FE_GET_EVENT(r0, 0x80286f4e, &(0x7f00000001c0)={0x0, {0x0, 0x0, @qam}}) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$phonet_pipe-timer_create-fcntl$lock-prlimit64-sched_setscheduler-getpid-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-ioctl$FE_GET_EVENT-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) getpid() r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f00000001c0)={0x0, {0x0, 0x0, @qam}}) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$phonet_pipe-timer_create-fcntl$lock-prlimit64-sched_setscheduler-getpid-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) getpid() r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in sys_newfstatat 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}}): socket$phonet_pipe-timer_create-fcntl$lock-prlimit64-sched_setscheduler-getpid-syz_open_dev$dvb_frontend-mprotect-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) getpid() syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$phonet_pipe-timer_create-fcntl$lock-prlimit64-sched_setscheduler-getpid-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) getpid() ioctl$FE_GET_EVENT(0xffffffffffffffff, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$phonet_pipe-timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted 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}}): socket$phonet_pipe-timer_create-fcntl$lock-prlimit64-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$phonet_pipe-timer_create-fcntl$lock-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$phonet_pipe-timer_create-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$phonet_pipe-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: socket$phonet_pipe(0x23, 0x5, 0x2) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r0 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r0, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(0x0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted 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}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, 0x0, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, 0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r0 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r0, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(0x0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, 0x0) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, 0x0, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, 0x0) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(0x0, 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, 0x0) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C 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}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted simplifying C reproducer testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-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=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}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime program crashed: INFO: rcu detected stall in kthread a never seen crash title: INFO: rcu detected stall in kthread, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime program crashed: INFO: rcu detected stall in schedule_timeout a never seen crash title: INFO: rcu detected stall in schedule_timeout, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in worker_thread validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime detailed listing: executing program 0: timer_create(0x0, &(0x7f00000000c0)={0x0, 0x21, 0x2}, &(0x7f0000000300)=0x0) fcntl$lock(0xffffffffffffffff, 0x24, &(0x7f0000000040)={0x0, 0x0, 0x10001, 0x5}) prlimit64(0x0, 0xe, &(0x7f0000000140)={0xa, 0x8b}, 0x0) sched_setscheduler(0x0, 0x2, &(0x7f0000000280)=0x8) r1 = syz_open_dev$dvb_frontend(&(0x7f0000000000), 0x0, 0x40002) ioctl$FE_GET_EVENT(r1, 0x80286f4e, &(0x7f0000000100)) mprotect(&(0x7f0000000000/0xf000)=nil, 0xf000, 0x1) timer_settime(r0, 0x1, &(0x7f0000000040)={{}, {0x0, 0x989680}}, 0x0) program crashed: INFO: rcu detected stall in corrupted validation run: crashed=true reproducing took 2h50m59.807158726s 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): P4459/1:b..l rcu: (detected by 1, t=10503 jiffies, g=24605, q=205 ncpus=2) task:kworker/u4:12 state:R running task stack:24728 pid:4459 ppid:2 flags:0x00004000 Workqueue: bat_events batadv_nc_worker Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x15ae/0x4660 kernel/sched/core.c:6700 preempt_schedule_irq+0xbf/0x150 kernel/sched/core.c:7010 irqentry_exit+0x67/0x70 kernel/entry/common.c:438 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:692 RIP: 0010:lock_acquire+0x208/0x420 kernel/locking/lockdep.c:5758 Code: f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 3c 04 f8 0f 85 f0 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 43 c7 44 3c 08 00 00 00 00 65 48 8b 04 25 RSP: 0018:ffffc9000e947a40 EFLAGS: 00000206 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0e065c3c2fe3e800 RDX: 0000000000000000 RSI: ffffffff8acadce0 RDI: ffffffff8b1c7be0 RBP: ffffc9000e947b48 R08: dffffc0000000000 R09: 1ffffffff22378a0 R10: dffffc0000000000 R11: fffffbfff22378a1 R12: 1ffff92001d28f54 R13: ffffffff8d131da0 R14: 0000000000000246 R15: dffffc0000000000 rcu_lock_acquire include/linux/rcupdate.h:334 [inline] rcu_read_lock include/linux/rcupdate.h:786 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline] batadv_nc_worker+0xef/0x600 net/batman-adv/network-coding.c:719 process_one_work kernel/workqueue.c:2653 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2730 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2811 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 rcu: rcu_preempt kthread starved for 10529 jiffies! g24605 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:26856 pid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x15ae/0x4660 kernel/sched/core.c:6700 preempt_schedule_irq+0xbf/0x150 kernel/sched/core.c:7010 irqentry_exit+0x67/0x70 kernel/entry/common.c:438 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:lock_acquire+0x208/0x420 kernel/locking/lockdep.c:5758 Code: f7 84 24 80 00 00 00 00 02 00 00 43 c6 44 3c 04 f8 0f 85 f0 00 00 00 41 f7 c6 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 43 c7 44 3c 08 00 00 00 00 65 48 8b 04 25 RSP: 0000:21d59b2ece103c00 EFLAGS: 1ffff9200002cefc ORIG_RAX: 21d59b2ece103c00 RAX: 000000000000001b RBX: 21d59b2ece103c00 RCX: 1ffff110171c787b RDX: 0000000000003000 RSI: 21d59b2ece103c00 RDI: ffff8880b8e3c340 RBP: 0000000000000046 R08: 0000000000000001 R09: 00009b2ece103c00 R10: 00000000000001af R11: 0000000000006b1f R12: ffffffff816f8ac0 R13: ffffffff8ca14fcc R14: 0000000045e0360e R15: ffffffff816f8b4a rcu: Stack dump where RCU GP kthread last ran: CPU: 1 PID: 10054 Comm: syz.0.1844 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:finish_task_switch+0x267/0x8f0 kernel/sched/core.c:5255 Code: 26 09 85 c0 0f 84 30 01 00 00 48 85 db 0f 85 4f 01 00 00 0f 1f 44 00 00 4c 89 e7 e8 93 3b 30 09 e8 7e 0b 30 00 fb 4c 8b 65 b8 <49> 8d bc 24 f8 15 00 00 48 89 f8 48 c1 e8 03 42 0f b6 04 30 84 c0 RSP: 0018:ffffc9000b807880 EFLAGS: 00000282 RAX: 1c7bbca7c6bc8000 RBX: 0000000000000000 RCX: 1c7bbca7c6bc8000 RDX: dffffc0000000000 RSI: ffffffff8acacb60 RDI: ffffffff8b1c7be0 RBP: ffffc9000b8078d0 R08: ffffffff8e8ae5ef R09: 1ffffffff1d15cbd R10: dffffc0000000000 R11: fffffbfff1d15cbe R12: ffff88802ab41e00 R13: 1ffff110171e79a9 R14: dffffc0000000000 R15: ffff8880b8f3cd48 FS: 00007f65de0a36c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000000058 CR3: 000000007e4bf000 CR4: 00000000003506e0 Call Trace: context_switch kernel/sched/core.c:5384 [inline] __schedule+0x15b6/0x4660 kernel/sched/core.c:6700 schedule+0xbd/0x170 kernel/sched/core.c:6774 futex_wait_queue+0x138/0x1b0 kernel/futex/waitwake.c:355 futex_wait+0x1e9/0x5c0 kernel/futex/waitwake.c:656 do_futex+0x2ff/0x3e0 kernel/futex/syscalls.c:134 __do_sys_futex kernel/futex/syscalls.c:211 [inline] __se_sys_futex+0x3a9/0x440 kernel/futex/syscalls.c:192 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f65dd19ce59 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:00007f65de0a30e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 00007f65dd415fa8 RCX: 00007f65dd19ce59 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f65dd415fa8 RBP: 00007f65dd415fa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f65dd416038 R14: 00007fff8f03ad90 R15: 00007fff8f03ae78 report is corrupted, running repro again testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime program crashed: INFO: rcu detected stall in corrupted report is corrupted, running repro again testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): timer_create-fcntl$lock-prlimit64-sched_setscheduler-syz_open_dev$dvb_frontend-ioctl$FE_GET_EVENT-mprotect-timer_settime program crashed: INFO: rcu detected stall in syscall_enter_from_user_mode 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): P23/1:b..l rcu: (detected by 0, t=10502 jiffies, g=9585, q=175 ncpus=2) task:kworker/1:0 state:R running task stack:27120 pid:23 ppid:2 flags:0x00004000 Workqueue: events_power_efficient gc_worker Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x15ae/0x4660 kernel/sched/core.c:6700 preempt_schedule_irq+0xbf/0x150 kernel/sched/core.c:7010 irqentry_exit+0x67/0x70 kernel/entry/common.c:438 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:692 RIP: 0010:seqcount_lockdep_reader_access+0x19a/0x1d0 include/linux/seqlock.h:105 Code: f8 4d 85 e4 75 16 e8 c5 fd cb f8 eb 15 e8 be fd cb f8 e8 a9 f0 c8 01 4d 85 e4 74 ea e8 af fd cb f8 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3e 00 00 00 00 43 c7 44 3e 08 00 00 00 00 65 48 8b 04 25 RSP: 0018:ffffc900001d79a0 EFLAGS: 00000293 RAX: ffffffff88bae7a1 RBX: 0000000000000000 RCX: ffff88801be75a00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900001d7a50 R08: ffffffff911bc597 R09: 1ffffffff22378b2 R10: dffffc0000000000 R11: fffffbfff22378b3 R12: 0000000000000200 R13: dffffc0000000000 R14: 1ffff9200003af34 R15: dffffc0000000000 nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:350 [inline] gc_worker+0x314/0x14a0 net/netfilter/nf_conntrack_core.c:1504 process_one_work kernel/workqueue.c:2653 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2730 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2811 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 rcu: rcu_preempt kthread starved for 10409 jiffies! g9585 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:27848 pid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5381 [inline] __schedule+0x15ae/0x4660 kernel/sched/core.c:6700 preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6867 preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6891 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline] _raw_spin_unlock_irqrestore+0x111/0x120 kernel/locking/spinlock.c:194 debug_object_free+0x2c2/0x470 lib/debugobjects.c:866 destroy_timer_on_stack kernel/time/timer.c:812 [inline] schedule_timeout+0x1a1/0x2d0 kernel/time/timer.c:2172 rcu_gp_fqs_loop+0x30d/0x1590 kernel/rcu/tree.c:1667 rcu_gp_kthread+0x9d/0x3b0 kernel/rcu/tree.c:1866 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 rcu: Stack dump where RCU GP kthread last ran: Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 6096 Comm: syz-executor140 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 RIP: 0010:arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline] RIP: 0010:static_key_false include/linux/jump_label.h:207 [inline] RIP: 0010:native_write_msr arch/x86/include/asm/msr.h:147 [inline] RIP: 0010:wrmsrl arch/x86/include/asm/msr.h:262 [inline] RIP: 0010:lapic_next_deadline+0x25/0x40 arch/x86/kernel/apic/apic.c:461 Code: 00 00 00 00 00 f3 0f 1e fa 0f ae f0 0f ae e8 0f 31 48 c1 e2 20 48 09 c2 48 8d 04 fa 48 89 c2 48 c1 ea 20 b9 e0 06 00 00 0f 30 <66> 90 31 c0 c3 bf e0 06 00 00 48 89 c6 31 d2 e8 c7 6e 24 03 31 c0 RSP: 0018:ffffc900001f0e88 EFLAGS: 00000003 RAX: 00000086de0eef5e RBX: ffff8880b8f282c0 RCX: 00000000000006e0 RDX: 0000000000000086 RSI: ffff8880b8f282c0 RDI: 0000000000229e2d RBP: 0000000000000000 R08: ffffffff8e8ae5ef R09: 1ffffffff1d15cbd R10: dffffc0000000000 R11: fffffbfff1d15cbe R12: dffffc0000000000 R13: 00000000008cccc4 R14: 0000000000229e2d R15: 0000000000000019 FS: 00007f977d54f6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f977d5ec036 CR3: 0000000025125000 CR4: 00000000003506e0 Call Trace: clockevents_program_event+0x1c0/0x310 kernel/time/clockevents.c:334 hrtimer_interrupt+0x565/0x980 kernel/time/hrtimer.c:1893 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1077 [inline] __sysvec_apic_timer_interrupt+0xfb/0x3b0 arch/x86/kernel/apic/apic.c:1094 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1088 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687 RIP: 0010:__syscall_enter_from_user_work kernel/entry/common.c:97 [inline] RIP: 0010:syscall_enter_from_user_mode+0x2e/0x80 kernel/entry/common.c:118 Code: 41 56 53 48 89 f3 49 89 fe 48 8b 7c 24 10 e8 e9 fa ff ff 66 90 66 90 e8 70 75 09 f7 e8 2b 75 09 f7 fb 65 48 8b 05 52 d9 7f 75 <48> 8b 70 08 40 f6 c6 3f 74 0b 4c 89 f7 5b 41 5e e9 cd c0 ef f6 48 RSP: 0018:ffffc90004c47f08 EFLAGS: 00000286 RAX: ffff888024c55a00 RBX: 000000000000000f RCX: 63a761d2e2bb9200 RDX: dffffc0000000000 RSI: ffffffff8acacb60 RDI: ffffffff8b1c7be0 RBP: ffffc90004c47f48 R08: ffffffff8e8ae5ef R09: 1ffffffff1d15cbd R10: dffffc0000000000 R11: fffffbfff1d15cbe R12: 0000000000000000 R13: 0000000000000000 R14: ffffc90004c47f58 R15: 0000000000000000 do_syscall_64+0x28/0xb0 arch/x86/entry/common.c:72 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f977d55dc49 Code: df 01 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 c7 c0 0f 00 00 00 0f 05 <0f> 1f 80 00 00 00 00 48 81 ec 48 01 00 00 49 89 d0 64 48 8b 0c 25 RSP: 002b:00007f977d54ebc0 EFLAGS: 00000202 ORIG_RAX: 000000000000000f RAX: ffffffffffffffda RBX: 00007f977d621b68 RCX: 00007f977d55dc49 RDX: 00007f977d54ebc0 RSI: 00007f977d54ecf0 RDI: 0000000000000021 RBP: 00007f977d621b60 R08: 00007f977d54fcdc R09: 0000000000000000 R10: 00007f977d54fcdc R11: 0000000000000202 R12: 00007f977d621b6c R13: 0000000000000016 R14: 00007ffd4ab206e0 R15: 00007ffd4ab207c8