./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor25053946 <...> Warning: Permanently added '10.128.1.189' (ED25519) to the list of known hosts. execve("./syz-executor25053946", ["./syz-executor25053946"], 0x7fff68811ad0 /* 10 vars */) = 0 brk(NULL) = 0x555564ec7000 brk(0x555564ec7d00) = 0x555564ec7d00 arch_prctl(ARCH_SET_FS, 0x555564ec7380) = 0 set_tid_address(0x555564ec7650) = 5848 set_robust_list(0x555564ec7660, 24) = 0 rseq(0x555564ec7ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor25053946", 4096) = 26 getrandom("\x8a\x5c\x38\xc3\x7f\x67\xa0\x0c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555564ec7d00 brk(0x555564ee8d00) = 0x555564ee8d00 brk(0x555564ee9000) = 0x555564ee9000 mprotect(0x7f03ae01e000, 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 unshare(CLONE_NEWPID) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5849 attached [pid 5849] set_robust_list(0x555564ec7660, 24 [pid 5848] <... clone resumed>, child_tidptr=0x555564ec7650) = 5849 [pid 5849] <... set_robust_list resumed>) = 0 [pid 5849] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5849] getppid() = 0 [pid 5849] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5849] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5849] unshare(CLONE_NEWNS) = 0 [pid 5849] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5849] unshare(CLONE_NEWIPC) = 0 [pid 5849] unshare(CLONE_NEWCGROUP) = 0 [pid 5849] unshare(CLONE_NEWUTS) = 0 [pid 5849] unshare(CLONE_SYSVSEM) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "16777216", 8) = 8 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "536870912", 9) = 9 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "8192", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024", 4) = 4 [pid 5849] close(3) = 0 [pid 5849] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5849] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5849] close(3) = 0 [pid 5849] getpid() = 1 [pid 5849] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5860] set_robust_list(0x555564ec7660, 24 [pid 5849] <... clone resumed>, child_tidptr=0x555564ec7650) = 2 [pid 5860] <... set_robust_list resumed>) = 0 [pid 5860] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5860] setpgid(0, 0) = 0 [pid 5860] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5860] write(3, "1000", 4) = 4 [pid 5860] close(3) = 0 executing program [pid 5860] write(1, "executing program\n", 18) = 18 [pid 5860] socket(AF_PACKET, SOCK_RAW, htons(0 /* ETH_P_??? */)) = 3 [pid 5860] ioctl(3, SIOCGIFINDEX, {ifr_name="team0", ifr_ifindex=15}) = 0 [pid 5860] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5860] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xac\x00\x00\x00\x24\x00\x0b\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x12\x00\x0f\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00\x0b\x00\x01\x00\x74\x61\x70\x72\x69\x6f\x00\x00\x7c\x00\x02\x00\x56\x00\x01\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01\xfe\x08\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x05\x00\x00\x00"..., iov_len=172}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 172 [pid 5860] close(3) = 0 [pid 5860] close(4) = 0 [ 84.833125][ C1] hrtimer: interrupt took 1219789615 ns [pid 5860] close(5) = -1 EBADF (Bad file descriptor) [pid 5860] close(6) = -1 EBADF (Bad file descriptor) [pid 5860] close(7) = -1 EBADF (Bad file descriptor) [pid 5860] close(8) = -1 EBADF (Bad file descriptor) [pid 5860] close(9) = -1 EBADF (Bad file descriptor) [pid 5860] close(10) = -1 EBADF (Bad file descriptor) [pid 5860] close(11) = -1 EBADF (Bad file descriptor) [pid 5860] close(12) = -1 EBADF (Bad file descriptor) [pid 5860] close(13) = -1 EBADF (Bad file descriptor) [pid 5860] close(14) = -1 EBADF (Bad file descriptor) [pid 5860] close(15) = -1 EBADF (Bad file descriptor) [pid 5860] close(16) = -1 EBADF (Bad file descriptor) [pid 5860] close(17) = -1 EBADF (Bad file descriptor) [pid 5860] close(18) = -1 EBADF (Bad file descriptor) [pid 5860] close(19) = -1 EBADF (Bad file descriptor) [pid 5860] close(20) = -1 EBADF (Bad file descriptor) [pid 5860] close(21) = -1 EBADF (Bad file descriptor) [pid 5860] close(22) = -1 EBADF (Bad file descriptor) [pid 5860] close(23) = -1 EBADF (Bad file descriptor) [pid 5860] close(24) = -1 EBADF (Bad file descriptor) [pid 5860] close(25) = -1 EBADF (Bad file descriptor) [pid 5860] close(26) = -1 EBADF (Bad file descriptor) [pid 5860] close(27) = -1 EBADF (Bad file descriptor) [pid 5860] close(28) = -1 EBADF (Bad file descriptor) [pid 5860] close(29) = -1 EBADF (Bad file descriptor) [pid 5860] exit_group(0) = ? [pid 5860] +++ exited with 0 +++ [pid 5849] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=2, si_uid=0, si_status=0, si_utime=0, si_stime=4 /* 0.04 s */} --- [ 189.853425][ C0] rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: [ 189.860477][ C0] rcu: 1-...!: (2 ticks this GP) idle=f5f4/0/0x1 softirq=11441/11441 fqs=0 [ 189.869732][ C0] rcu: (detected by 0, t=10504 jiffies, g=8425, q=136 ncpus=2) [ 189.877394][ C0] Sending NMI from CPU 0 to CPUs 1: [ 189.877433][ C1] NMI backtrace for cpu 1 [ 189.877464][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.12.0-syzkaller-05480-gfcc79e1714e8 #0 [ 189.877482][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 189.877495][ C1] RIP: 0010:lock_release+0x19d/0xa30 [ 189.877538][ C1] Code: 3b 00 74 08 4c 89 f7 e8 d1 ff 8e 00 4c 89 6c 24 50 48 c7 84 24 b0 00 00 00 00 00 00 00 9c 8f 84 24 b0 00 00 00 42 80 3c 3b 00 <74> 08 4c 89 f7 e8 b9 fe 8e 00 48 8b 9c 24 b0 00 00 00 fa 48 c7 c7 [ 189.877554][ C1] RSP: 0018:ffffc90000a18b20 EFLAGS: 00000046 [ 189.877571][ C1] RAX: ffffffff940b6750 RBX: 1ffff9200014317a RCX: ffffffff8170b3e0 [ 189.877583][ C1] RDX: 0000000000000000 RSI: ffffffff8c820840 RDI: ffffffff8c820800 [ 189.877595][ C1] RBP: ffffc90000a18c60 R08: ffffffff903f3877 R09: 1ffffffff207e70e [ 189.877606][ C1] R10: dffffc0000000000 R11: fffffbfff207e70f R12: 1ffff92000143170 [ 189.877618][ C1] R13: ffffffff89dcbca2 R14: ffffc90000a18bd0 R15: dffffc0000000000 [ 189.877630][ C1] FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 189.877644][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 189.877654][ C1] CR2: 00007f03ae0272d0 CR3: 000000007f364000 CR4: 00000000003526f0 [ 189.877669][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 189.877678][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 189.877688][ C1] Call Trace: [ 189.877694][ C1] [ 189.877701][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 189.877727][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 189.877744][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 189.877764][ C1] ? nmi_handle+0x2a/0x5a0 [ 189.877787][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 189.877808][ C1] ? nmi_handle+0x14f/0x5a0 [ 189.877824][ C1] ? nmi_handle+0x2a/0x5a0 [ 189.877841][ C1] ? lock_release+0x19d/0xa30 [ 189.877855][ C1] ? default_do_nmi+0x63/0x160 [ 189.877878][ C1] ? exc_nmi+0x123/0x1f0 [ 189.877899][ C1] ? end_repeat_nmi+0xf/0x53 [ 189.877925][ C1] ? advance_sched+0xa02/0xca0 [ 189.877948][ C1] ? lock_release+0xb0/0xa30 [ 189.877964][ C1] ? lock_release+0x19d/0xa30 [ 189.877979][ C1] ? lock_release+0x19d/0xa30 [ 189.877995][ C1] ? lock_release+0x19d/0xa30 [ 189.878009][ C1] [ 189.878014][ C1] [ 189.878021][ C1] ? advance_sched+0xa02/0xca0 [ 189.878042][ C1] ? advance_sched+0xa02/0xca0 [ 189.878062][ C1] ? __netif_schedule+0xc4/0x310 [ 189.878083][ C1] ? __pfx_lock_release+0x10/0x10 [ 189.878098][ C1] ? __pfx___netif_schedule+0x10/0x10 [ 189.878125][ C1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 189.878146][ C1] ? taprio_set_budgets+0x32c/0x370 [ 189.878167][ C1] ? advance_sched+0xa02/0xca0 [ 189.878188][ C1] ? advance_sched+0xa02/0xca0 [ 189.878209][ C1] advance_sched+0xb32/0xca0 [ 189.878237][ C1] ? __pfx_advance_sched+0x10/0x10 [ 189.878258][ C1] __hrtimer_run_queues+0x59b/0xd50 [ 189.878284][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 189.878303][ C1] ? read_tsc+0x9/0x20 [ 189.878322][ C1] ? ktime_get_update_offsets_now+0x393/0x3b0 [ 189.878347][ C1] hrtimer_interrupt+0x403/0xa40 [ 189.878374][ C1] __sysvec_apic_timer_interrupt+0x110/0x420 [ 189.878392][ C1] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 189.878410][ C1] [ 189.878415][ C1] [ 189.878420][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 189.878442][ C1] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 189.878463][ C1] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 00 d6 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d e5 d2 b1 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 [ 189.878474][ C1] RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246 [ 189.878488][ C1] RAX: ffff88801d6e8000 RBX: ffff888021a89864 RCX: 000000000002f5f1 [ 189.878499][ C1] RDX: 0000000000000001 RSI: ffff888021a89800 RDI: ffff888021a89864 [ 189.878510][ C1] RBP: 000000000003a9f8 R08: ffff8880b8737edb R09: 1ffff110170e6fdb [ 189.878521][ C1] R10: dffffc0000000000 R11: ffffffff8bda0450 R12: ffff888147a8c800 [ 189.878533][ C1] R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f346740 [ 189.878545][ C1] ? __pfx_acpi_idle_enter+0x10/0x10 [ 189.878569][ C1] acpi_idle_enter+0xe4/0x140 [ 189.878589][ C1] cpuidle_enter_state+0x109/0x470 [ 189.878608][ C1] ? __pfx_menu_select+0x10/0x10 [ 189.878624][ C1] cpuidle_enter+0x5d/0xa0 [ 189.878645][ C1] do_idle+0x372/0x5c0 [ 189.878668][ C1] ? __pfx_do_idle+0x10/0x10 [ 189.878692][ C1] ? do_idle+0x5a0/0x5c0 [ 189.878713][ C1] cpu_startup_entry+0x42/0x60 [ 189.878733][ C1] start_secondary+0x102/0x110 [ 189.878753][ C1] common_startup_64+0x13e/0x147 [ 189.878778][ C1] [ 189.878785][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.357 msecs [ 189.879420][ C0] rcu: rcu_preempt kthread timer wakeup didn't happen for 10503 jiffies! g8425 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 [ 190.357000][ C0] rcu: Possible timer handling issue on cpu=1 timer-softirq=4620 [ 190.364811][ C0] rcu: rcu_preempt kthread starved for 10504 jiffies! g8425 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1 [ 190.376099][ C0] rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. [ 190.386072][ C0] rcu: RCU grace-period kthread stack dump: [ 190.391974][ C0] task:rcu_preempt state:I stack:26096 pid:17 tgid:17 ppid:2 flags:0x00004000 [ 190.402173][ C0] Call Trace: [ 190.405456][ C0] [ 190.408399][ C0] __schedule+0x1850/0x4c30 [ 190.412945][ C0] ? __pfx___schedule+0x10/0x10 [ 190.417811][ C0] ? __pfx_lock_release+0x10/0x10 [ 190.422856][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 190.429207][ C0] ? schedule+0x90/0x320 [ 190.433460][ C0] schedule+0x14b/0x320 [ 190.437634][ C0] schedule_timeout+0x15a/0x290 [ 190.442497][ C0] ? __pfx_schedule_timeout+0x10/0x10 [ 190.447880][ C0] ? __pfx_process_timeout+0x10/0x10 [ 190.453184][ C0] ? prepare_to_swait_event+0x330/0x350 [ 190.458752][ C0] rcu_gp_fqs_loop+0x2df/0x1330 [ 190.463610][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 190.468825][ C0] ? rcu_gp_init+0x1256/0x1630 [ 190.473604][ C0] ? __pfx_rcu_gp_init+0x10/0x10 [ 190.478553][ C0] ? __pfx_rcu_gp_fqs_loop+0x10/0x10 [ 190.483848][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 190.489761][ C0] ? finish_swait+0xd4/0x1e0 [ 190.494371][ C0] rcu_gp_kthread+0xa7/0x3b0 [ 190.498973][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 190.504178][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 190.510090][ C0] ? __kthread_parkme+0x169/0x1d0 [ 190.515134][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 190.520343][ C0] kthread+0x2f0/0x390 [ 190.524422][ C0] ? __pfx_rcu_gp_kthread+0x10/0x10 [ 190.529631][ C0] ? __pfx_kthread+0x10/0x10 [ 190.534258][ C0] ret_from_fork+0x4b/0x80 [ 190.538699][ C0] ? __pfx_kthread+0x10/0x10 [ 190.543317][ C0] ret_from_fork_asm+0x1a/0x30 [ 190.548121][ C0]