./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2567625608 <...> Warning: Permanently added '10.128.0.226' (ED25519) to the list of known hosts. execve("./syz-executor2567625608", ["./syz-executor2567625608"], 0x7ffecaa96630 /* 10 vars */) = 0 brk(NULL) = 0x555556de9000 brk(0x555556de9d00) = 0x555556de9d00 arch_prctl(ARCH_SET_FS, 0x555556de9380) = 0 set_tid_address(0x555556de9650) = 5066 set_robust_list(0x555556de9660, 24) = 0 rseq(0x555556de9ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2567625608", 4096) = 28 getrandom("\x47\x9f\x90\x12\xc7\x00\x51\x4e", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555556de9d00 brk(0x555556e0ad00) = 0x555556e0ad00 brk(0x555556e0b000) = 0x555556e0b000 mprotect(0x7f19fd8f5000, 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 5067 attached , child_tidptr=0x555556de9650) = 5067 [pid 5067] set_robust_list(0x555556de9660, 24) = 0 [pid 5067] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5067] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5067] setsid() = 1 [pid 5067] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5067] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5067] unshare(CLONE_NEWNS) = 0 [pid 5067] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5067] unshare(CLONE_NEWIPC) = 0 [pid 5067] unshare(CLONE_NEWCGROUP) = 0 [pid 5067] unshare(CLONE_NEWUTS) = 0 [pid 5067] unshare(CLONE_SYSVSEM) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "16777216", 8) = 8 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "536870912", 9) = 9 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "8192", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024", 4) = 4 [pid 5067] close(3) = 0 [pid 5067] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5067] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5067] close(3) = 0 [pid 5067] getpid() = 1 [pid 5067] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1< [pid 5079] set_robust_list(0x555556de9660, 24 [pid 5067] <... clone resumed>, child_tidptr=0x555556de9650) = 2 [pid 5079] <... set_robust_list resumed>) = 0 [pid 5079] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5079] setpgid(0, 0) = 0 [pid 5079] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5079] write(3, "1000", 4) = 4 [pid 5079] close(3) = 0 [pid 5079] socket(AF_PACKET, SOCK_RAW, htons(0 /* ETH_P_??? */)) = 3 [pid 5079] ioctl(3, SIOCGIFINDEX, {ifr_name="team0", ifr_ifindex=15}) = 0 [pid 5079] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5079] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xa4\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\x74\x00\x02\x00\x56\x00\x01\x00\x02\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x08\x00\x04\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., iov_len=164}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 164 [pid 5067] kill(-2, SIGKILL) = 0 [pid 5067] kill(2, SIGKILL) = 0 [pid 5079] +++ killed by SIGKILL +++ [pid 5067] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_KILLED, si_pid=2, si_uid=0, si_status=SIGKILL, si_utime=0, si_stime=2 /* 0.02 s */} --- [ 85.465344][ C1] hrtimer: interrupt took 5318014176 ns [ 135.006117][ T18] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D } 2680 jiffies s: 561 root: 0x2/. [ 135.018489][ T18] rcu: blocking rcu_node structures (internal RCU debug): [ 135.025976][ T18] Sending NMI from CPU 0 to CPUs 1: [ 135.031250][ C1] NMI backtrace for cpu 1 [ 135.031261][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0 [ 135.031282][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024 [ 135.031293][ C1] RIP: 0010:advance_sched+0x2a0/0xca0 [ 135.031355][ C1] Code: c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 ef e8 6f 75 7e f8 48 8b 6d 00 4c 89 ef 48 89 ee e8 20 5b 1c f8 <49> 39 ed 0f 84 42 09 00 00 48 89 5c 24 30 49 81 c7 40 01 00 00 48 [ 135.031372][ C1] RSP: 0018:ffffc90000a08c90 EFLAGS: 00000046 [ 135.031389][ C1] RAX: 0000000000010002 RBX: ffff888025310d50 RCX: ffff8880172c5a00 [ 135.031404][ C1] RDX: 0000000000010002 RSI: 0000000000000000 RDI: 17bbf13c0dd491c7 [ 135.031418][ C1] RBP: 0000000000000000 R08: ffffffff89776390 R09: fffff52000141180 [ 135.031432][ C1] R10: dffffc0000000000 R11: fffff52000141180 R12: 0000000000000002 [ 135.031446][ C1] R13: 17bbf13c0dd491c7 R14: ffff888028ac5330 R15: ffff888025310c00 [ 135.031464][ C1] FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 135.031482][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 135.031496][ C1] CR2: 0000000020000600 CR3: 0000000078e4c000 CR4: 0000000000350ef0 [ 135.031511][ C1] Call Trace: [ 135.031519][ C1] [ 135.031531][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 135.031568][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 135.031604][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 135.031636][ C1] ? nmi_handle+0x2a/0x580 [ 135.031668][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 135.031693][ C1] ? nmi_handle+0x151/0x580 [ 135.031712][ C1] ? nmi_handle+0x2a/0x580 [ 135.031733][ C1] ? advance_sched+0x2a0/0xca0 [ 135.031765][ C1] ? default_do_nmi+0x63/0x160 [ 135.031799][ C1] ? exc_nmi+0x123/0x1f0 [ 135.031831][ C1] ? end_repeat_nmi+0xf/0x60 [ 135.031866][ C1] ? advance_sched+0x2a0/0xca0 [ 135.031901][ C1] ? advance_sched+0x2a0/0xca0 [ 135.031934][ C1] ? advance_sched+0x2a0/0xca0 [ 135.031968][ C1] ? advance_sched+0x2a0/0xca0 [ 135.032001][ C1] [ 135.032007][ C1] [ 135.032016][ C1] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 135.032043][ C1] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 135.032074][ C1] ? __pfx_advance_sched+0x10/0x10 [ 135.032108][ C1] __hrtimer_run_queues+0x596/0xd00 [ 135.032145][ C1] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 135.032167][ C1] ? srso_return_thunk+0x5/0x5f [ 135.032198][ C1] ? ktime_get_update_offsets_now+0x411/0x430 [ 135.032234][ C1] hrtimer_interrupt+0x396/0x990 [ 135.032275][ C1] __sysvec_apic_timer_interrupt+0x109/0x3a0 [ 135.032306][ C1] sysvec_apic_timer_interrupt+0x92/0xb0 [ 135.032331][ C1] [ 135.032337][ C1] [ 135.032344][ C1] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 135.032375][ C1] RIP: 0010:acpi_safe_halt+0x20/0x30 [ 135.032406][ C1] Code: 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 08 34 9b 74 48 f7 00 08 00 00 00 75 10 eb 07 0f 00 2d 36 8f 9f 00 f3 0f 1e fa fb f4 e9 0a ce 0a 00 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 [ 135.032422][ C1] RSP: 0018:ffffc90000197d08 EFLAGS: 00000246 [ 135.032439][ C1] RAX: ffff8880172c5a00 RBX: ffff8880157e0864 RCX: 0000000000026581 [ 135.032453][ C1] RDX: 0000000000000001 RSI: ffff8880157e0800 RDI: ffff8880157e0864 [ 135.032468][ C1] RBP: 0000000000038d98 R08: ffff8880b9536b8b R09: 1ffff110172a6d71 [ 135.032482][ C1] R10: dffffc0000000000 R11: ffffffff8b6884c0 R12: ffff88801832f800 [ 135.032497][ C1] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8e899860 [ 135.032514][ C1] ? __pfx_acpi_idle_enter+0x10/0x10 [ 135.032555][ C1] ? srso_return_thunk+0x5/0x5f [ 135.032585][ C1] acpi_idle_enter+0xe4/0x140 [ 135.032617][ C1] cpuidle_enter_state+0x11a/0x490 [ 135.032646][ C1] ? srso_return_thunk+0x5/0x5f [ 135.032675][ C1] ? tick_nohz_idle_stop_tick+0x23b/0x9e0 [ 135.032702][ C1] cpuidle_enter+0x5d/0xa0 [ 135.032729][ C1] do_idle+0x374/0x5d0 [ 135.032756][ C1] ? __pfx_do_idle+0x10/0x10 [ 135.032788][ C1] cpu_startup_entry+0x41/0x60 [ 135.032808][ C1] start_secondary+0x100/0x100 [ 135.032832][ C1] secondary_startup_64_no_verify+0x171/0x17b [ 135.032873][ C1] [ 135.032881][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.630 msecs