./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3982278817 <...> Warning: Permanently added '10.128.0.69' (ED25519) to the list of known hosts. execve("./syz-executor3982278817", ["./syz-executor3982278817"], 0x7fff26c37c90 /* 10 vars */) = 0 brk(NULL) = 0x555555c25000 brk(0x555555c25d00) = 0x555555c25d00 arch_prctl(ARCH_SET_FS, 0x555555c25380) = 0 set_tid_address(0x555555c25650) = 294 set_robust_list(0x555555c25660, 24) = 0 rseq(0x555555c25ca0, 0x20, 0, 0x53053053) = -1 ENOSYS (Function not implemented) prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3982278817", 4096) = 28 getrandom("\x76\x86\x1e\xc3\x98\x7e\x38\xd3", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555555c25d00 brk(0x555555c46d00) = 0x555555c46d00 brk(0x555555c47000) = 0x555555c47000 mprotect(0x7f25b2d96000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c25650) = 295 ./strace-static-x86_64: Process 295 attached [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] set_robust_list(0x555555c25660, 24./strace-static-x86_64: Process 296 attached [pid 294] <... clone resumed>, child_tidptr=0x555555c25650) = 296 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] set_robust_list(0x555555c25660, 24 [pid 295] <... set_robust_list resumed>) = 0 [pid 294] <... clone resumed>, child_tidptr=0x555555c25650) = 297 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 297 attached [pid 296] <... set_robust_list resumed>) = 0 [pid 295] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... clone resumed>, child_tidptr=0x555555c25650) = 298 [pid 294] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 294] <... clone resumed>, child_tidptr=0x555555c25650) = 299 ./strace-static-x86_64: Process 299 attached [pid 299] set_robust_list(0x555555c25660, 24) = 0 [pid 299] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 295] <... clone resumed>, child_tidptr=0x555555c25650) = 300 [pid 296] <... clone resumed>, child_tidptr=0x555555c25650) = 301 [pid 297] set_robust_list(0x555555c25660, 24 [pid 299] <... clone resumed>, child_tidptr=0x555555c25650) = 302 ./strace-static-x86_64: Process 300 attached [pid 300] set_robust_list(0x555555c25660, 24) = 0 [pid 300] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] setpgid(0, 0) = 0 [pid 300] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] <... set_robust_list resumed>) = 0 ./strace-static-x86_64: Process 298 attached ./strace-static-x86_64: Process 301 attached [pid 301] set_robust_list(0x555555c25660, 24) = 0 [pid 301] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 301] setpgid(0, 0) = 0 [pid 301] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 297] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 301] <... openat resumed>) = 3 [pid 301] write(3, "1000", 4) = 4 [pid 301] close(3 [pid 297] <... clone resumed>, child_tidptr=0x555555c25650) = 303 [pid 298] set_robust_list(0x555555c25660, 24 [pid 301] <... close resumed>) = 0 [pid 301] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY) = 3 [pid 298] <... set_robust_list resumed>) = 0 [pid 301] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100) = 0 [pid 301] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440) = 0 [pid 301] ioctl(3, SNDRV_TIMER_IOCTL_START, 0) = 0 [pid 301] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY) = 4 [pid 301] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100) = 0 ./strace-static-x86_64: Process 302 attached [pid 302] set_robust_list(0x555555c25660, 24 [pid 301] ioctl(4, SNDRV_TIMER_IOCTL_START, 0) = 0 [pid 301] exit_group(0 [pid 302] <... set_robust_list resumed>) = 0 [pid 302] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 301] <... exit_group resumed>) = ? [pid 302] <... prctl resumed>) = 0 [pid 302] setpgid(0, 0 [pid 300] <... openat resumed>) = 3 [pid 302] <... setpgid resumed>) = 0 [pid 302] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 300] write(3, "1000", 4) = 4 ./strace-static-x86_64: Process 303 attached [pid 302] <... openat resumed>) = 3 [pid 301] +++ exited with 0 +++ [pid 298] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD [pid 296] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=301, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 296] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555c25650) = 304 [pid 300] close(3) = 0 [pid 302] write(3, "1000", 4 [pid 300] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 302] <... write resumed>) = 4 [pid 302] close(3) = 0 [pid 302] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY) = 3 [pid 302] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100) = 0 [pid 300] <... openat resumed>) = 3 [pid 302] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440) = 0 [pid 300] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 302] ioctl(3, SNDRV_TIMER_IOCTL_START, 0) = 0 [pid 302] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY) = 4 [pid 302] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100) = 0 [pid 302] ioctl(4, SNDRV_TIMER_IOCTL_START, 0) = 0 [pid 300] <... ioctl resumed>) = 0 [pid 298] <... clone resumed>, child_tidptr=0x555555c25650) = 305 ./strace-static-x86_64: Process 304 attached [pid 302] exit_group(0) = ? [pid 300] ioctl(3, SNDRV_TIMER_IOCTL_PARAMS, 0x20000440) = 0 [pid 300] ioctl(3, SNDRV_TIMER_IOCTL_START, 0) = 0 [pid 304] set_robust_list(0x555555c25660, 24 [pid 303] set_robust_list(0x555555c25660, 24 [pid 300] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 304] <... set_robust_list resumed>) = 0 [pid 303] <... set_robust_list resumed>) = 0 [pid 303] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 300] <... openat resumed>) = 4 [pid 303] setpgid(0, 0 [pid 300] ioctl(4, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 303] <... setpgid resumed>) = 0 [pid 300] <... ioctl resumed>) = 0 [pid 300] ioctl(4, SNDRV_TIMER_IOCTL_START, 0 [pid 303] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC [pid 304] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 303] <... openat resumed>) = 3 [pid 300] <... ioctl resumed>) = 0 [ 22.841472][ T30] audit: type=1400 audit(1715557704.001:66): avc: denied { execmem } for pid=294 comm="syz-executor398" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 ./strace-static-x86_64: Process 305 attached [pid 304] <... prctl resumed>) = 0 [pid 303] write(3, "1000", 4 [pid 300] exit_group(0 [pid 304] setpgid(0, 0 [pid 300] <... exit_group resumed>) = ? [pid 304] <... setpgid resumed>) = 0 [pid 304] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 304] write(3, "1000", 4) = 4 [pid 304] close(3) = 0 [pid 304] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY) = 3 [pid 304] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 305] set_robust_list(0x555555c25660, 24 [pid 303] <... write resumed>) = 4 [pid 303] close(3) = 0 [pid 305] <... set_robust_list resumed>) = 0 [pid 303] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY [pid 305] prctl(PR_SET_PDEATHSIG, SIGKILL [pid 303] <... openat resumed>) = 3 [pid 305] <... prctl resumed>) = 0 [pid 305] setpgid(0, 0 [pid 303] ioctl(3, SNDRV_TIMER_IOCTL_SELECT, 0x20000100 [pid 305] <... setpgid resumed>) = 0 [pid 305] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 305] write(3, "1000", 4) = 4 [pid 305] close(3) = 0 [pid 305] openat(AT_FDCWD, "/dev/snd/timer", O_RDONLY) = 3 [ 122.898129][ C1] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 122.904997][ C1] rcu: 0-...!: (1 GPs behind) idle=15f/1/0x4000000000000000 softirq=2307/2308 fqs=9 last_accelerate: 9372/ba84 dyntick_enabled: 1 [ 122.918236][ C1] (detected by 1, t=10002 jiffies, g=433, q=56) [ 122.924406][ C1] Sending NMI from CPU 1 to CPUs 0: [ 122.929596][ C0] NMI backtrace for cpu 0 [ 122.929623][ C0] CPU: 0 PID: 302 Comm: syz-executor398 Not tainted 5.15.149-syzkaller-00490-g5d96939590c0 #0 [ 122.929642][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 122.929668][ C0] RIP: 0010:ktime_get+0x135/0x160 [ 122.929706][ C0] Code: 00 e9 1d ff ff ff e8 9a 2b 0f 00 48 c7 c7 20 86 9b 86 4c 89 fe 4c 89 f2 e8 78 db 23 01 eb d2 e8 81 2b 0f 00 44 89 f1 49 d3 ef <4d> 01 ef 4c 89 f8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 65 2b 0f 00 [ 122.929720][ C0] RSP: 0018:ffffc90000007ca0 EFLAGS: 00000003 [ 122.929735][ C0] RAX: ffffffff8160faaf RBX: 0000000005215dfc RCX: 0000000000000018 [ 122.929748][ C0] RDX: 0000000000010001 RSI: 0000000000000018 RDI: 0000000000000040 [ 122.929759][ C0] RBP: ffffc90000007cc8 R08: ffffffff8160fa71 R09: 0000000000000003 [ 122.929771][ C0] R10: fffff52000000f8c R11: dffffc0000000001 R12: 00000000000056c0 [ 122.929784][ C0] R13: 0000001c981b63f0 R14: 0000000000000018 R15: 0000000005fd2acd [ 122.929795][ C0] FS: 0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 [ 122.929810][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 122.929823][ C0] CR2: 00007f25b2d6c01d CR3: 000000011e098000 CR4: 00000000003506b0 [ 122.929838][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 122.929848][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 122.929858][ C0] Call Trace: [ 122.929864][ C0] [ 122.929879][ C0] ? show_regs+0x58/0x60 [ 122.929898][ C0] ? nmi_cpu_backtrace+0x29f/0x300 [ 122.929920][ C0] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 122.929941][ C0] ? ktime_get+0x135/0x160 [ 122.929956][ C0] ? ktime_get+0x135/0x160 [ 122.929971][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 122.929989][ C0] ? nmi_handle+0xa8/0x280 [ 122.930006][ C0] ? ktime_get+0x135/0x160 [ 122.930022][ C0] ? default_do_nmi+0x69/0x160 [ 122.930040][ C0] ? exc_nmi+0xaf/0x120 [ 122.930056][ C0] ? end_repeat_nmi+0x16/0x31 [ 122.930073][ C0] ? ktime_get+0xf1/0x160 [ 122.930087][ C0] ? ktime_get+0x12f/0x160 [ 122.930103][ C0] ? ktime_get+0x135/0x160 [ 122.930118][ C0] ? ktime_get+0x135/0x160 [ 122.930133][ C0] ? ktime_get+0x135/0x160 [ 122.930148][ C0] [ 122.930153][ C0] [ 122.930158][ C0] snd_hrtimer_callback+0x12d/0x330 [ 122.930178][ C0] ? snd_hrtimer_stop+0xa0/0xa0 [ 122.930194][ C0] __hrtimer_run_queues+0x41a/0xad0 [ 122.930213][ C0] ? hrtimer_interrupt+0xaa0/0xaa0 [ 122.930229][ C0] ? clockevents_program_event+0x236/0x300 [ 122.930247][ C0] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 122.930266][ C0] hrtimer_interrupt+0x40c/0xaa0 [ 122.930285][ C0] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 122.930303][ C0] sysvec_apic_timer_interrupt+0x95/0xc0 [ 122.930321][ C0] [ 122.930326][ C0] [ 122.930331][ C0] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 122.930348][ C0] RIP: 0010:_raw_spin_unlock_irqrestore+0x57/0x80 [ 122.930369][ C0] Code: 8d 86 e8 bc 6c e9 fc 48 83 3d 9c 78 c4 01 00 74 35 48 89 df e8 0e 0a 8c fc 66 90 41 f7 c6 00 02 00 00 74 01 fb bf 01 00 00 00 84 4d 83 fc 65 8b 05 25 91 39 7b 85 c0 74 05 5b 41 5e 5d c3 e8 [ 122.930382][ C0] RSP: 0018:ffffc90000a47a68 EFLAGS: 00000206 [ 122.930396][ C0] RAX: 0000000000000001 RBX: ffff88810ad76138 RCX: dffffc0000000000 [ 122.930409][ C0] RDX: 0000000000000000 RSI: 0000000000000246 RDI: 0000000000000001 [ 122.930419][ C0] RBP: ffffc90000a47a78 R08: ffffffff83c297e7 R09: ffffed1023c2248e [ 122.930431][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88810ad760b0 [ 122.930443][ C0] R13: dffffc0000000000 R14: 0000000000000246 R15: 0000000000000001 [ 122.930456][ C0] ? snd_timer_notify1+0x217/0x350 [ 122.930473][ C0] ? _raw_spin_unlock_irqrestore+0x46/0x80 [ 122.930492][ C0] snd_timer_stop1+0x7af/0x8f0 [ 122.930509][ C0] snd_timer_close_locked+0x22e/0x920 [ 122.930527][ C0] snd_timer_user_release+0x121/0x2c0 [ 122.930544][ C0] ? snd_timer_user_open+0x180/0x180 [ 122.930560][ C0] ? percpu_counter_add_batch+0x13d/0x160 [ 122.930578][ C0] ? snd_timer_user_open+0x180/0x180 [ 122.930595][ C0] __fput+0x3fe/0x910 [ 122.930613][ C0] ____fput+0x15/0x20 [ 122.930628][ C0] task_work_run+0x129/0x190 [ 122.930645][ C0] do_exit+0xc48/0x2ca0 [ 122.930670][ C0] ? put_task_struct+0x80/0x80 [ 122.930686][ C0] ? ptrace_notify+0x24c/0x350 [ 122.930703][ C0] ? do_notify_parent+0xa30/0xa30 [ 122.930722][ C0] do_group_exit+0x141/0x310 [ 122.930739][ C0] __x64_sys_exit_group+0x3f/0x40 [ 122.930756][ C0] do_syscall_64+0x3d/0xb0 [ 122.930772][ C0] entry_SYSCALL_64_after_hwframe+0x61/0xcb [ 122.930792][ C0] RIP: 0033:0x7f25b2d21db9 [ 122.930809][ C0] Code: Unable to access opcode bytes at RIP 0x7f25b2d21d8f. [ 122.930817][ C0] RSP: 002b:00007ffdbbaddc98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 122.930834][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f25b2d21db9 [ 122.930845][ C0] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000 [ 122.930856][ C0] RBP: 00007f25b2d9c2b0 R08: ffffffffffffffb8 R09: 00000000000000a0 [ 122.930868][ C0] R10: 00000000000000a0 R11: 0000000000000246 R12: 00007f25b2d9c2b0 [ 122.930879][ C0] R13: 0000000000000000 R14: 00007f25b2d9cd20 R15: 00007f25b2cf2f50 [ 122.930893][ C0] [ 122.930902][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.303 msecs [ 122.931593][ C1] rcu: rcu_preempt kthread starved for 9984 jiffies! g433 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 [ 123.450142][ C1] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 123.459943][ C1] rcu: RCU grace-period kthread stack dump: [ 123.465679][ C1] task:rcu_preempt state:R running task stack:28328 pid: 14 ppid: 2 flags:0x00004000 [ 123.476349][ C1] Call Trace: [ 123.479470][ C1] [ 123.482256][ C1] __schedule+0xccc/0x1590 [ 123.486592][ C1] ? __sched_text_start+0x8/0x8 [ 123.491273][ C1] ? del_timer_sync+0x1bc/0x230 [ 123.495960][ C1] ? __kasan_check_write+0x14/0x20 [ 123.500907][ C1] schedule+0x11f/0x1e0 [ 123.504902][ C1] schedule_timeout+0x18c/0x370 [ 123.509673][ C1] ? __kasan_check_write+0x14/0x20 [ 123.514621][ C1] ? _raw_spin_lock_irqsave+0xf9/0x210 [ 123.519918][ C1] ? console_conditional_schedule+0x30/0x30 [ 123.525644][ C1] ? update_process_times+0x200/0x200 [ 123.530851][ C1] ? prepare_to_swait_event+0x308/0x320 [ 123.536233][ C1] rcu_gp_fqs_loop+0x2af/0xf80 [ 123.540834][ C1] ? dyntick_save_progress_counter+0x1e0/0x1e0 [ 123.546820][ C1] ? rcu_gp_init+0xc30/0xc30 [ 123.551246][ C1] ? _raw_spin_unlock_irq+0x4e/0x70 [ 123.556283][ C1] ? rcu_gp_init+0x9cf/0xc30 [ 123.560716][ C1] rcu_gp_kthread+0xa4/0x350 [ 123.565143][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 123.569824][ C1] ? rcu_barrier_callback+0x50/0x50 [ 123.574856][ C1] ? __kasan_check_read+0x11/0x20 [ 123.579716][ C1] ? __kthread_parkme+0xb2/0x200 [ 123.584492][ C1] kthread+0x421/0x510 [ 123.588393][ C1] ? rcu_barrier_callback+0x50/0x50 [ 123.593431][ C1] ? kthread_blkcg+0xd0/0xd0 [ 123.597855][ C1] ret_from_fork+0x1f/0x30 [ 123.602111][ C1] [ 123.604982][ C1] rcu: Stack dump where RCU GP kthread last ran: [ 123.611228][ C1] NMI backtrace for cpu 1 [ 123.615403][ C1] CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 5.15.149-syzkaller-00490-g5d96939590c0 #0 [ 123.625109][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 123.635011][ C1] Workqueue: events_unbound toggle_allocation_gate [ 123.641342][ C1] Call Trace: [ 123.644465][ C1] [ 123.647160][ C1] dump_stack_lvl+0x151/0x1b7 [ 123.651669][ C1] ? io_uring_drop_tctx_refs+0x190/0x190 [ 123.657140][ C1] dump_stack+0x15/0x17 [ 123.661126][ C1] nmi_cpu_backtrace+0x2f7/0x300 [ 123.665901][ C1] ? nmi_trigger_cpumask_backtrace+0x270/0x270 [ 123.671892][ C1] ? panic+0x751/0x751 [ 123.675798][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 123.681706][ C1] nmi_trigger_cpumask_backtrace+0x15d/0x270 [ 123.687518][ C1] ? arch_trigger_cpumask_backtrace+0x20/0x20 [ 123.693506][ C1] arch_trigger_cpumask_backtrace+0x10/0x20 [ 123.699232][ C1] rcu_check_gp_kthread_starvation+0x1e3/0x250 [ 123.705225][ C1] print_other_cpu_stall+0x112d/0x1340 [ 123.710514][ C1] ? print_cpu_stall+0x5f0/0x5f0 [ 123.715535][ C1] rcu_sched_clock_irq+0xaec/0x12f0 [ 123.720621][ C1] ? rcu_boost_kthread_setaffinity+0x340/0x340 [ 123.726608][ C1] ? hrtimer_run_queues+0x15f/0x440 [ 123.731644][ C1] update_process_times+0x198/0x200 [ 123.736674][ C1] tick_sched_timer+0x188/0x240 [ 123.741362][ C1] ? tick_setup_sched_timer+0x480/0x480 [ 123.746740][ C1] __hrtimer_run_queues+0x41a/0xad0 [ 123.751783][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 123.756723][ C1] ? clockevents_program_event+0x22f/0x300 [ 123.762367][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 123.768266][ C1] hrtimer_interrupt+0x40c/0xaa0 [ 123.773044][ C1] __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 123.779034][ C1] sysvec_apic_timer_interrupt+0x95/0xc0 [ 123.784498][ C1] [ 123.787271][ C1] [ 123.790051][ C1] asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 123.795865][ C1] RIP: 0010:smp_call_function_many_cond+0x843/0x9b0 [ 123.802291][ C1] Code: 45 8b 7d 00 44 89 fe 83 e6 01 31 ff e8 76 a8 0a 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 07 e8 b1 a4 0a 00 eb 38 f3 90 <42> 0f b6 04 3b 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 95 a4 [ 123.821814][ C1] RSP: 0018:ffffc900002ef880 EFLAGS: 00000293 [ 123.827806][ C1] RAX: ffffffff8165819b RBX: 1ffff1103ee07971 RCX: ffff8881055b62c0 [ 123.835615][ C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 123.843524][ C1] RBP: ffffc900002ef998 R08: ffffffff8165816a R09: ffffed103ee27053 [ 123.851338][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 123.859149][ C1] R13: ffff8881f703cb88 R14: ffff8881f7138280 R15: dffffc0000000000 [ 123.866960][ C1] ? smp_call_function_many_cond+0x82a/0x9b0 [ 123.872772][ C1] ? smp_call_function_many_cond+0x85b/0x9b0 [ 123.878690][ C1] ? text_poke_sync+0x30/0x30 [ 123.883188][ C1] ? smp_call_function_many+0x40/0x40 [ 123.888401][ C1] ? __kmalloc_track_caller+0x74/0x260 [ 123.893693][ C1] ? text_poke_loc_init+0xc5/0x540 [ 123.898640][ C1] ? text_poke_sync+0x30/0x30 [ 123.903151][ C1] on_each_cpu_cond_mask+0x40/0x80 [ 123.908219][ C1] ? __kmalloc_track_caller+0x74/0x260 [ 123.913508][ C1] text_poke_bp_batch+0x1c4/0x5d0 [ 123.918453][ C1] ? text_poke_loc_init+0x540/0x540 [ 123.923490][ C1] ? mutex_lock+0xb6/0x1e0 [ 123.927737][ C1] ? __mutex_lock_slowpath+0x10/0x10 [ 123.932859][ C1] ? wait_for_completion_killable_timeout+0x10/0x10 [ 123.939281][ C1] ? text_poke_queue+0xe4/0x1a0 [ 123.944058][ C1] text_poke_finish+0x1a/0x30 [ 123.948571][ C1] arch_jump_label_transform_apply+0x15/0x30 [ 123.954389][ C1] __jump_label_update+0x36a/0x380 [ 123.959333][ C1] jump_label_update+0x3af/0x450 [ 123.964104][ C1] static_key_enable_cpuslocked+0x12f/0x250 [ 123.969841][ C1] static_key_enable+0x1a/0x30 [ 123.974432][ C1] toggle_allocation_gate+0xbf/0x460 [ 123.979555][ C1] ? kfence_protect+0x270/0x270 [ 123.984242][ C1] ? _raw_spin_unlock+0x4d/0x70 [ 123.988990][ C1] ? finish_task_switch+0x167/0x7b0 [ 123.993965][ C1] ? __kasan_check_read+0x11/0x20 [ 123.998820][ C1] ? read_word_at_a_time+0x12/0x20 [ 124.003953][ C1] ? strscpy+0x9c/0x260 [ 124.007934][ C1] process_one_work+0x6bb/0xc10 [ 124.012629][ C1] worker_thread+0xad5/0x12a0 [ 124.017134][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 124.021997][ C1] kthread+0x421/0x510 [ 124.025899][ C1] ? worker_clr_flags+0x180/0x180 [ 124.030761][ C1] ? kthread_blkcg+0xd0/0xd0 [ 124.035184][ C1] ret_from_fork+0x1f/0x30 [ 124.039440][ C1] [ 265.048509][ C1] watchdog: BUG: soft lockup - CPU#1 stuck for 225s! [kworker/u4:2:45] [ 265.056602][ C1] Modules linked in: [ 265.060436][ C1] CPU: 1 PID: 45 Comm: kworker/u4:2 Not tainted 5.15.149-syzkaller-00490-g5d96939590c0 #0 [ 265.070134][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 265.080050][ C1] Workqueue: events_unbound toggle_allocation_gate [ 265.086367][ C1] RIP: 0010:smp_call_function_many_cond+0x843/0x9b0 [ 265.092782][ C1] Code: 45 8b 7d 00 44 89 fe 83 e6 01 31 ff e8 76 a8 0a 00 41 83 e7 01 49 bf 00 00 00 00 00 fc ff df 75 07 e8 b1 a4 0a 00 eb 38 f3 90 <42> 0f b6 04 3b 84 c0 75 11 41 f7 45 00 01 00 00 00 74 1e e8 95 a4 [ 265.112661][ C1] RSP: 0018:ffffc900002ef880 EFLAGS: 00000293 [ 265.118563][ C1] RAX: ffffffff8165819b RBX: 1ffff1103ee07971 RCX: ffff8881055b62c0 [ 265.126374][ C1] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 [ 265.134188][ C1] RBP: ffffc900002ef998 R08: ffffffff8165816a R09: ffffed103ee27053 [ 265.141998][ C1] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000 [ 265.149814][ C1] R13: ffff8881f703cb88 R14: ffff8881f7138280 R15: dffffc0000000000 [ 265.157619][ C1] FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 [ 265.166385][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 265.172806][ C1] CR2: 00007f25b2d9a0d0 CR3: 000000000680f000 CR4: 00000000003506a0 [ 265.180625][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 265.188433][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 265.196244][ C1] Call Trace: [ 265.199368][ C1] [ 265.202060][ C1] ? show_regs+0x58/0x60 [ 265.206136][ C1] ? watchdog_timer_fn+0x4b1/0x5f0 [ 265.211082][ C1] ? proc_watchdog_cpumask+0xd0/0xd0 [ 265.216202][ C1] ? __hrtimer_run_queues+0x41a/0xad0 [ 265.221415][ C1] ? hrtimer_interrupt+0xaa0/0xaa0 [ 265.226365][ C1] ? clockevents_program_event+0x22f/0x300 [ 265.232003][ C1] ? ktime_get_update_offsets_now+0x2ba/0x2d0 [ 265.237903][ C1] ? hrtimer_interrupt+0x40c/0xaa0 [ 265.242863][ C1] ? __sysvec_apic_timer_interrupt+0xfd/0x3c0 [ 265.248754][ C1] ? sysvec_apic_timer_interrupt+0x95/0xc0 [ 265.254395][ C1] [ 265.257172][ C1] [ 265.259946][ C1] ? asm_sysvec_apic_timer_interrupt+0x1b/0x20 [ 265.265938][ C1] ? smp_call_function_many_cond+0x82a/0x9b0 [ 265.271836][ C1] ? smp_call_function_many_cond+0x85b/0x9b0 [ 265.277655][ C1] ? smp_call_function_many_cond+0x843/0x9b0 [ 265.283468][ C1] ? text_poke_sync+0x30/0x30 [ 265.287980][ C1] ? smp_call_function_many+0x40/0x40 [ 265.293190][ C1] ? __kmalloc_track_caller+0x74/0x260 [ 265.298483][ C1] ? text_poke_loc_init+0xc5/0x540 [ 265.303434][ C1] ? text_poke_sync+0x30/0x30 [ 265.307946][ C1] on_each_cpu_cond_mask+0x40/0x80 [ 265.312893][ C1] ? __kmalloc_track_caller+0x74/0x260 [ 265.318186][ C1] text_poke_bp_batch+0x1c4/0x5d0 [ 265.323059][ C1] ? text_poke_loc_init+0x540/0x540 [ 265.328084][ C1] ? mutex_lock+0xb6/0x1e0 [ 265.332333][ C1] ? __mutex_lock_slowpath+0x10/0x10 [ 265.337453][ C1] ? wait_for_completion_killable_timeout+0x10/0x10 [ 265.343972][ C1] ? text_poke_queue+0xe4/0x1a0 [ 265.348656][ C1] text_poke_finish+0x1a/0x30 [ 265.353168][ C1] arch_jump_label_transform_apply+0x15/0x30 [ 265.359071][ C1] __jump_label_update+0x36a/0x380 [ 265.364030][ C1] jump_label_update+0x3af/0x450 [ 265.368804][ C1] static_key_enable_cpuslocked+0x12f/0x250 [ 265.374519][ C1] static_key_enable+0x1a/0x30 [ 265.379127][ C1] toggle_allocation_gate+0xbf/0x460 [ 265.384244][ C1] ? kfence_protect+0x270/0x270 [ 265.388927][ C1] ? _raw_spin_unlock+0x4d/0x70 [ 265.393615][ C1] ? finish_task_switch+0x167/0x7b0 [ 265.398649][ C1] ? __kasan_check_read+0x11/0x20 [ 265.403512][ C1] ? read_word_at_a_time+0x12/0x20 [ 265.408461][ C1] ? strscpy+0x9c/0x260 [ 265.412451][ C1] process_one_work+0x6bb/0xc10 [ 265.417139][ C1] worker_thread+0xad5/0x12a0 [ 265.421650][ C1] ? _raw_spin_lock+0x1b0/0x1b0 [ 265.426342][ C1] kthread+0x421/0x510 [ 265.430243][ C1] ? worker_clr_flags+0x180/0x180 [ 265.435105][ C1] ? kthread_blkcg+0xd0/0xd0 [ 265.439528][ C1] ret_from_fork+0x1f/0x30 [ 265.443787][ C1]