./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2934210793 <...> Warning: Permanently added '10.128.0.30' (ED25519) to the list of known hosts. execve("./syz-executor2934210793", ["./syz-executor2934210793"], 0x7fff180d6f80 /* 10 vars */) = 0 brk(NULL) = 0x5555881f8000 brk(0x5555881f8d00) = 0x5555881f8d00 arch_prctl(ARCH_SET_FS, 0x5555881f8380) = 0 set_tid_address(0x5555881f8650) = 5080 set_robust_list(0x5555881f8660, 24) = 0 rseq(0x5555881f8ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2934210793", 4096) = 28 getrandom("\xe7\x9c\xd4\x6e\x06\x03\x52\x1f", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555881f8d00 brk(0x555588219d00) = 0x555588219d00 brk(0x55558821a000) = 0x55558821a000 mprotect(0x7f7c71f10000, 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 5081 attached , child_tidptr=0x5555881f8650) = 5081 [pid 5081] set_robust_list(0x5555881f8660, 24) = 0 [pid 5081] mount(NULL, "/sys/fs/fuse/connections", "fusectl", 0, NULL) = -1 EBUSY (Device or resource busy) [pid 5081] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5081] setsid() = 1 [pid 5081] prlimit64(0, RLIMIT_AS, {rlim_cur=204800*1024, rlim_max=204800*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_MEMLOCK, {rlim_cur=32768*1024, rlim_max=32768*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_FSIZE, {rlim_cur=139264*1024, rlim_max=139264*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_STACK, {rlim_cur=1024*1024, rlim_max=1024*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_CORE, {rlim_cur=131072*1024, rlim_max=131072*1024}, NULL) = 0 [pid 5081] prlimit64(0, RLIMIT_NOFILE, {rlim_cur=256, rlim_max=256}, NULL) = 0 [pid 5081] unshare(CLONE_NEWNS) = 0 [pid 5081] mount(NULL, "/", NULL, MS_REC|MS_PRIVATE, NULL) = 0 [pid 5081] unshare(CLONE_NEWIPC) = 0 [pid 5081] unshare(CLONE_NEWCGROUP) = 0 [pid 5081] unshare(CLONE_NEWUTS) = 0 [pid 5081] unshare(CLONE_SYSVSEM) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/shmmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "16777216", 8) = 8 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/shmall", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "536870912", 9) = 9 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/shmmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmax", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "8192", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmni", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/msgmnb", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024", 4) = 4 [pid 5081] close(3) = 0 [pid 5081] openat(AT_FDCWD, "/proc/sys/kernel/sem", O_WRONLY|O_CLOEXEC) = 3 [pid 5081] write(3, "1024 1048576 500 1024", 21) = 21 [pid 5081] close(3) = 0 [pid 5081] getpid() = 1 [pid 5081] capget({version=_LINUX_CAPABILITY_VERSION_3, pid=1}, {effective=1<) = 0 [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD./strace-static-x86_64: Process 5091 attached [pid 5091] set_robust_list(0x5555881f8660, 24 [pid 5081] <... clone resumed>, child_tidptr=0x5555881f8650) = 3 [pid 5091] <... set_robust_list resumed>) = 0 [pid 5091] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5091] setpgid(0, 0) = 0 [pid 5091] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5091] write(3, "1000", 4) = 4 [pid 5091] close(3) = 0 [pid 5091] socket(AF_PACKET, SOCK_RAW, htons(0 /* ETH_P_??? */)) = 3 [pid 5091] ioctl(3, SIOCGIFINDEX, {ifr_name="team0", ifr_ifindex=15}) = 0 [pid 5091] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5091] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xe0\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\x03\x00\x0b\x00\x01\x00\x74\x61\x70\x72\x69\x6f\x00\x00\xb0\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=224}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 224 [ 125.542930][ T45] cfg80211: failed to load regulatory.db [pid 5091] close(3) = 0 [pid 5091] close(4) = 0 [pid 5091] close(5) = -1 EBADF (Bad file descriptor) [pid 5091] close(6) = -1 EBADF (Bad file descriptor) [pid 5091] close(7) = -1 EBADF (Bad file descriptor) [pid 5091] close(8) = -1 EBADF (Bad file descriptor) [pid 5091] close(9) = -1 EBADF (Bad file descriptor) [pid 5091] close(10) = -1 EBADF (Bad file descriptor) [pid 5091] close(11) = -1 EBADF (Bad file descriptor) [pid 5091] close(12) = -1 EBADF (Bad file descriptor) [pid 5091] close(13) = -1 EBADF (Bad file descriptor) [pid 5091] close(14) = -1 EBADF (Bad file descriptor) [pid 5091] close(15) = -1 EBADF (Bad file descriptor) [pid 5091] close(16) = -1 EBADF (Bad file descriptor) [pid 5091] close(17) = -1 EBADF (Bad file descriptor) [pid 5091] close(18) = -1 EBADF (Bad file descriptor) [pid 5091] close(19) = -1 EBADF (Bad file descriptor) [pid 5091] close(20) = -1 EBADF (Bad file descriptor) [pid 5091] close(21) = -1 EBADF (Bad file descriptor) [pid 5091] close(22) = -1 EBADF (Bad file descriptor) [pid 5091] close(23) = -1 EBADF (Bad file descriptor) [pid 5091] close(24) = -1 EBADF (Bad file descriptor) [pid 5091] close(25) = -1 EBADF (Bad file descriptor) [pid 5091] close(26) = -1 EBADF (Bad file descriptor) [pid 5091] close(27) = -1 EBADF (Bad file descriptor) [pid 5091] close(28) = -1 EBADF (Bad file descriptor) [pid 5091] close(29) = -1 EBADF (Bad file descriptor) [pid 5091] exit_group(0) = ? [pid 5091] +++ exited with 0 +++ [pid 5081] --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=3, si_uid=0, si_status=0, si_utime=0, si_stime=0} --- [pid 5081] clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x5555881f8650) = 4 ./strace-static-x86_64: Process 5099 attached [pid 5099] set_robust_list(0x5555881f8660, 24) = 0 [pid 5099] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5099] setpgid(0, 0) = 0 [pid 5099] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5099] write(3, "1000", 4) = 4 [pid 5099] close(3) = 0 [pid 5099] socket(AF_PACKET, SOCK_RAW, htons(0 /* ETH_P_??? */)) = 3 [pid 5099] ioctl(3, SIOCGIFINDEX, {ifr_name="team0", ifr_ifindex=15}) = 0 [pid 5099] socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE) = 4 [pid 5099] sendmsg(4, {msg_name=NULL, msg_namelen=0, msg_iov=[{iov_base="\xe0\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\x03\x00\x0b\x00\x01\x00\x74\x61\x70\x72\x69\x6f\x00\x00\xb0\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=224}], msg_iovlen=1, msg_controllen=0, msg_flags=0}, 0) = 224 [pid 5099] close(3 [pid 5081] kill(-4, SIGKILL) = 0 [pid 5081] kill(4, SIGKILL) = 0 [pid 5081] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5081] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5081] getdents64(3, 0x5555881f96f0 /* 2 entries */, 32768) = 48 [pid 5081] getdents64(3, 0x5555881f96f0 /* 0 entries */, 32768) = 0 [pid 5081] close(3) = 0 [ 151.972256][ T19] rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-...D } 2640 jiffies s: 565 root: 0x1/. [ 151.984757][ T19] rcu: blocking rcu_node structures (internal RCU debug): [ 151.991898][ T19] Sending NMI from CPU 1 to CPUs 0: [ 151.997164][ C0] NMI backtrace for cpu 0 [ 151.997176][ C0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.9.0-rc2-next-20240402-syzkaller #0 [ 151.997192][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 151.997201][ C0] RIP: 0010:debug_objects_fill_pool+0x2d/0x9b0 [ 151.997245][ C0] Code: fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec 80 01 00 00 65 48 8b 04 25 28 00 00 00 48 89 84 24 60 01 00 00 <49> be 00 00 00 00 00 fc ff df 48 c7 84 24 a0 00 00 00 b3 8a b5 41 [ 151.997257][ C0] RSP: 0018:ffffc90000007a40 EFLAGS: 00000082 [ 151.997270][ C0] RAX: e2082e9593e35e00 RBX: ffffc90000007c70 RCX: 0000000000000000 [ 151.997281][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc90000007c80 [ 151.997291][ C0] RBP: ffffc90000007bf0 R08: ffffc90000007c6f R09: 0000000000000000 [ 151.997301][ C0] R10: ffffc90000007c60 R11: fffff52000000f8e R12: 0000000000000000 [ 151.997311][ C0] R13: 1ffff92000000f88 R14: dffffc0000000000 R15: ffff888079b9b340 [ 151.997322][ C0] FS: 0000000000000000(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 [ 151.997334][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 151.997345][ C0] CR2: 00007f4fd3c04bd0 CR3: 0000000075024000 CR4: 00000000003506f0 [ 151.997359][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 151.997367][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 151.997377][ C0] Call Trace: [ 151.997383][ C0] [ 151.997390][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 151.997411][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 151.997429][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 151.997444][ C0] ? nmi_handle+0x2a/0x5a0 [ 151.997467][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 151.997484][ C0] ? nmi_handle+0x14f/0x5a0 [ 151.997499][ C0] ? nmi_handle+0x2a/0x5a0 [ 151.997514][ C0] ? debug_objects_fill_pool+0x2d/0x9b0 [ 151.997531][ C0] ? default_do_nmi+0x63/0x160 [ 151.997548][ C0] ? exc_nmi+0x123/0x1f0 [ 151.997563][ C0] ? end_repeat_nmi+0xf/0x53 [ 151.997586][ C0] ? debug_objects_fill_pool+0x2d/0x9b0 [ 151.997605][ C0] ? debug_objects_fill_pool+0x2d/0x9b0 [ 151.997624][ C0] ? debug_objects_fill_pool+0x2d/0x9b0 [ 151.997642][ C0] [ 151.997647][ C0] [ 151.997653][ C0] ? __lock_acquire+0x1346/0x1fd0 [ 151.997679][ C0] ? advance_sched+0xa02/0xca0 [ 151.997700][ C0] debug_object_activate+0x135/0x510 [ 151.997720][ C0] ? __pfx_do_raw_spin_lock+0x10/0x10 [ 151.997740][ C0] ? __pfx_debug_object_activate+0x10/0x10 [ 151.997757][ C0] ? advance_sched+0xa02/0xca0 [ 151.997775][ C0] ? _raw_spin_lock_irq+0xdf/0x120 [ 151.997795][ C0] ? __pfx__raw_spin_lock_irq+0x10/0x10 [ 151.997817][ C0] enqueue_hrtimer+0x30/0x3c0 [ 151.997839][ C0] __hrtimer_run_queues+0x6d5/0xd50 [ 151.997867][ C0] ? __pfx___hrtimer_run_queues+0x10/0x10 [ 151.997885][ C0] ? ktime_get_update_offsets_now+0x411/0x430 [ 151.997905][ C0] hrtimer_interrupt+0x396/0x990 [ 151.997935][ C0] __sysvec_apic_timer_interrupt+0x110/0x3f0 [ 151.997958][ C0] sysvec_apic_timer_interrupt+0xa1/0xc0 [ 151.997982][ C0] [ 151.997987][ C0] [ 151.997992][ C0] asm_sysvec_apic_timer_interrupt+0x1a/0x20 [ 151.998010][ C0] RIP: 0010:acpi_safe_halt+0x21/0x30 [ 151.998025][ C0] Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 c0 d3 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 05 f9 a7 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 [ 151.998037][ C0] RSP: 0018:ffffffff8e007ca8 EFLAGS: 00000246 [ 151.998048][ C0] RAX: ffffffff8e094680 RBX: ffff8880176fb864 RCX: 000000000001cb09 [ 151.998059][ C0] RDX: 0000000000000001 RSI: ffff8880176fb800 RDI: ffff8880176fb864 [ 151.998070][ C0] RBP: 000000000003a478 R08: ffff8880b9437ccb R09: 1ffff11017286f99 [ 151.998080][ C0] R10: dffffc0000000000 R11: ffffffff8b815170 R12: ffff888015fff000 [ 151.998090][ C0] R13: 0000000000000000 R14: 0000000000000001 R15: ffffffff8eac1b60 [ 151.998102][ C0] ? __pfx_acpi_idle_enter+0x10/0x10 [ 151.998122][ C0] acpi_idle_enter+0xe4/0x140 [ 151.998138][ C0] cpuidle_enter_state+0x112/0x480 [ 151.998158][ C0] ? __pfx_menu_select+0x10/0x10 [ 151.998177][ C0] cpuidle_enter+0x5d/0xa0 [ 151.998194][ C0] do_idle+0x375/0x5d0 [ 151.998209][ C0] ? __pfx___schedule+0x10/0x10 [ 151.998226][ C0] ? __pfx_do_idle+0x10/0x10 [ 151.998243][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 151.998263][ C0] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 151.998285][ C0] ? rest_init+0x31/0x300 [ 151.998300][ C0] ? rest_init+0x31/0x300 [ 151.998313][ C0] cpu_startup_entry+0x42/0x60 [ 151.998329][ C0] rest_init+0x2dc/0x300 [ 151.998343][ C0] ? __pfx_x86_late_time_init+0x10/0x10 [ 151.998364][ C0] start_kernel+0x47a/0x500 [ 151.998386][ C0] x86_64_start_reservations+0x2a/0x30 [ 151.998403][ C0] x86_64_start_kernel+0x99/0xa0 [ 151.998417][ C0] common_startup_64+0x13e/0x147 [ 151.998441][ C0] [ 151.998449][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.284 msecs