./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3605950548 <...> Warning: Permanently added '10.128.1.105' (ED25519) to the list of known hosts. execve("./syz-executor3605950548", ["./syz-executor3605950548"], 0x7ffd842d12f0 /* 10 vars */) = 0 brk(NULL) = 0x55556670d000 brk(0x55556670dd00) = 0x55556670dd00 arch_prctl(ARCH_SET_FS, 0x55556670d380) = 0 set_tid_address(0x55556670d650) = 5072 set_robust_list(0x55556670d660, 24) = 0 rseq(0x55556670dca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor3605950548", 4096) = 28 getrandom("\xed\xec\xa3\xfe\xef\xff\x60\x4b", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x55556670dd00 brk(0x55556672ed00) = 0x55556672ed00 brk(0x55556672f000) = 0x55556672f000 mprotect(0x7f711f0f7000, 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=0x55556670d650) = 5073 ./strace-static-x86_64: Process 5073 attached [pid 5073] set_robust_list(0x55556670d660, 24) = 0 [pid 5073] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5073] setpgid(0, 0) = 0 [pid 5073] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5073] write(3, "1000", 4) = 4 [pid 5073] close(3) = 0 [pid 5073] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [pid 5073] socket(AF_INET, SOCK_SEQPACKET, IPPROTO_IP) = 4 [pid 5073] ioctl(3, NBD_SET_SOCK, 4) = 0 [pid 5073] listen(4, 7757) = 0 [pid 5073] ioctl(3, NBD_DO_IT [pid 5072] kill(-5073, SIGKILL) = 0 [pid 5072] kill(5073, SIGKILL) = 0 [ 62.398062][ T5073] block nbd0: shutting down sockets [pid 5072] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5072] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5072] getdents64(3, 0x55556670e6f0 /* 2 entries */, 32768) = 48 [pid 5072] getdents64(3, 0x55556670e6f0 /* 0 entries */, 32768) = 0 [pid 5072] close(3) = 0 [ 76.761394][ T24] cfg80211: failed to load regulatory.db [ 286.679730][ T29] INFO: task syz-executor360:5073 blocked for more than 143 seconds. [ 286.687965][ T29] Not tainted 6.9.0-rc7-syzkaller-00136-gf4345f05c0df #0 [ 286.695642][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.704532][ T29] task:syz-executor360 state:D stack:25464 pid:5073 tgid:5073 ppid:5072 flags:0x00004006 [ 286.714783][ T29] Call Trace: [ 286.718068][ T29] [ 286.721067][ T29] __schedule+0x1796/0x4a00 [ 286.725724][ T29] ? __pfx___schedule+0x10/0x10 [ 286.730743][ T29] ? __pfx_lock_release+0x10/0x10 [ 286.735864][ T29] ? __lock_acquire+0x1346/0x1fd0 [ 286.740962][ T29] ? schedule+0x90/0x320 [ 286.745225][ T29] schedule+0x14b/0x320 [ 286.749376][ T29] schedule_timeout+0xb0/0x310 [ 286.754749][ T29] ? __pfx_schedule_timeout+0x10/0x10 [ 286.760182][ T29] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.766182][ T29] ? wait_for_completion+0x2fe/0x620 [ 286.771568][ T29] ? wait_for_completion+0x2fe/0x620 [ 286.776864][ T29] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.782120][ T29] ? lockdep_hardirqs_on+0x99/0x150 [ 286.787409][ T29] ? wait_for_completion+0x2fe/0x620 [ 286.792741][ T29] wait_for_completion+0x355/0x620 [ 286.797871][ T29] ? __pfx_wait_for_completion+0x10/0x10 [ 286.803635][ T29] ? flush_workqueue_prep_pwqs+0x45c/0x4c0 [ 286.809558][ T29] ? check_flush_dependency+0xb2/0x390 [ 286.815059][ T29] __flush_workqueue+0x7d6/0x1710 [ 286.820166][ T29] ? __pfx_dd_has_work+0x10/0x10 [ 286.825172][ T29] ? __pfx___flush_workqueue+0x10/0x10 [ 286.830701][ T29] ? __pfx_blk_mq_run_hw_queues+0x10/0x10 [ 286.836531][ T29] ? ktime_get_mono_fast_ns+0x1c3/0x1f0 [ 286.842156][ T29] ? blk_mq_unquiesce_queue+0xc0/0x120 [ 286.847628][ T29] nbd_ioctl+0xbd1/0xf40 [ 286.852001][ T29] ? __pfx_nbd_ioctl+0x10/0x10 [ 286.856771][ T29] ? __asan_memset+0x23/0x50 [ 286.861440][ T29] ? __pfx_autoremove_wake_function+0x10/0x10 [ 286.867529][ T29] ? __pfx_smack_file_ioctl+0x10/0x10 [ 286.872966][ T29] ? file_to_blk_mode+0xd5/0x140 [ 286.877930][ T29] ? __pfx_nbd_ioctl+0x10/0x10 [ 286.882747][ T29] blkdev_ioctl+0x5e5/0x740 [ 286.887291][ T29] ? __pfx_blkdev_ioctl+0x10/0x10 [ 286.892400][ T29] ? bpf_lsm_file_ioctl+0x9/0x10 [ 286.897395][ T29] ? security_file_ioctl+0x87/0xb0 [ 286.902564][ T29] ? __pfx_blkdev_ioctl+0x10/0x10 [ 286.907614][ T29] __se_sys_ioctl+0xfc/0x170 [ 286.912292][ T29] do_syscall_64+0xf5/0x240 [ 286.916871][ T29] ? clear_bhb_loop+0x35/0x90 [ 286.921642][ T29] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 286.927554][ T29] RIP: 0033:0x7f711f084879 [ 286.932017][ T29] RSP: 002b:00007ffcf3e105c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 286.940485][ T29] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f711f084879 [ 286.948452][ T29] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 286.956481][ T29] RBP: 00007f711f0f75f0 R08: 0000000000000006 R09: 0000000000000006 [ 286.964509][ T29] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000001 [ 286.972537][ T29] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 286.980598][ T29] [ 286.983628][ T29] [ 286.983628][ T29] Showing all locks held in the system: [ 286.991494][ T29] 1 lock held by khungtaskd/29: [ 286.996392][ T29] #0: ffffffff8e334da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 287.006340][ T29] 2 locks held by kworker/u9:1/4472: [ 287.011658][ T29] #0: ffff888020975148 ((wq_completion)nbd0-recv){+.+.}-{0:0}, at: process_scheduled_works+0x8e0/0x17c0 [ 287.022965][ T29] #1: ffffc9000d7afd00 ((work_completion)(&args->work)){+.+.}-{0:0}, at: process_scheduled_works+0x91b/0x17c0 [ 287.034771][ T29] 2 locks held by getty/4827: [ 287.039448][ T29] #0: ffff88802acd70a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.049430][ T29] #1: ffffc90002f0e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 287.059675][ T29] [ 287.062007][ T29] ============================================= [ 287.062007][ T29] [ 287.070450][ T29] NMI backtrace for cpu 0 [ 287.074803][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc7-syzkaller-00136-gf4345f05c0df #0 [ 287.084590][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 287.094632][ T29] Call Trace: [ 287.097900][ T29] [ 287.100818][ T29] dump_stack_lvl+0x241/0x360 [ 287.105507][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.110693][ T29] ? __pfx__printk+0x10/0x10 [ 287.115328][ T29] ? vprintk_emit+0x631/0x770 [ 287.119994][ T29] ? __pfx_vprintk_emit+0x10/0x10 [ 287.125006][ T29] nmi_cpu_backtrace+0x49c/0x4d0 [ 287.129965][ T29] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.135414][ T29] ? _printk+0xd5/0x120 [ 287.139571][ T29] ? __pfx__printk+0x10/0x10 [ 287.144153][ T29] ? __wake_up_klogd+0xcc/0x110 [ 287.149016][ T29] ? __pfx__printk+0x10/0x10 [ 287.153602][ T29] ? wq_watchdog_touch+0x72/0x110 [ 287.158623][ T29] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.164620][ T29] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.170595][ T29] watchdog+0xfde/0x1020 [ 287.174846][ T29] ? watchdog+0x1ea/0x1020 [ 287.179257][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.183923][ T29] kthread+0x2f0/0x390 [ 287.187985][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.192664][ T29] ? __pfx_kthread+0x10/0x10 [ 287.197248][ T29] ret_from_fork+0x4b/0x80 [ 287.201659][ T29] ? __pfx_kthread+0x10/0x10 [ 287.206242][ T29] ret_from_fork_asm+0x1a/0x30 [ 287.211025][ T29] [ 287.214114][ T29] Sending NMI from CPU 0 to CPUs 1: [ 287.219336][ C1] NMI backtrace for cpu 1 [ 287.219347][ C1] CPU: 1 PID: 4517 Comm: klogd Not tainted 6.9.0-rc7-syzkaller-00136-gf4345f05c0df #0 [ 287.219364][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 287.219379][ C1] RIP: 0010:qlink_to_cache+0x2a/0xb0 [ 287.219400][ C1] Code: e8 fb 23 4b ff 48 c1 e8 06 48 83 e0 c0 48 ba 00 00 00 00 00 ea ff ff 48 8b 4c 10 08 f6 c1 01 75 44 48 01 d0 66 90 48 8b 48 08 c1 01 75 65 66 90 48 8b 08 48 c1 e1 34 48 c1 f9 3f 48 21 c1 48 [ 287.219412][ C1] RSP: 0018:ffffc90003957680 EFLAGS: 00000286 [ 287.219426][ C1] RAX: ffffea0000939800 RBX: ffff888024e64400 RCX: ffff888015eeb8c0 [ 287.219438][ C1] RDX: ffffea0000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 287.219448][ C1] RBP: ffff888021326400 R08: ffffffff81429ccc R09: ffffffff81f77223 [ 287.219460][ C1] R10: dffffc0000000000 R11: fffffbfff25dfca6 R12: 0000000000000000 [ 287.219470][ C1] R13: ffff888024e64400 R14: ffffc900039576b8 R15: 0000000000000000 [ 287.219480][ C1] FS: 00007f4b5527e380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 287.219493][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.219503][ C1] CR2: 00007f632efb8580 CR3: 000000007c59e000 CR4: 00000000003506f0 [ 287.219517][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.219526][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.219536][ C1] Call Trace: [ 287.219542][ C1] [ 287.219548][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 287.219565][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 287.219583][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.219598][ C1] ? nmi_handle+0x2a/0x5a0 [ 287.219630][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 287.219648][ C1] ? nmi_handle+0x14f/0x5a0 [ 287.219662][ C1] ? nmi_handle+0x2a/0x5a0 [ 287.219677][ C1] ? qlink_to_cache+0x2a/0xb0 [ 287.219692][ C1] ? default_do_nmi+0x63/0x160 [ 287.219709][ C1] ? exc_nmi+0x123/0x1f0 [ 287.219724][ C1] ? end_repeat_nmi+0xf/0x53 [ 287.219744][ C1] ? qlist_free_all+0x53/0xc0 [ 287.219758][ C1] ? __phys_addr+0xac/0x170 [ 287.219784][ C1] ? qlink_to_cache+0x2a/0xb0 [ 287.219800][ C1] ? qlink_to_cache+0x2a/0xb0 [ 287.219816][ C1] ? qlink_to_cache+0x2a/0xb0 [ 287.219831][ C1] [ 287.219836][ C1] [ 287.219840][ C1] qlist_free_all+0x2e/0xc0 [ 287.219857][ C1] kasan_quarantine_reduce+0x14f/0x170 [ 287.219875][ C1] __kasan_slab_alloc+0x23/0x80 [ 287.219892][ C1] kmem_cache_alloc_node+0x194/0x390 [ 287.219918][ C1] ? __alloc_skb+0x1c3/0x440 [ 287.219985][ C1] __alloc_skb+0x1c3/0x440 [ 287.220002][ C1] ? __pfx___alloc_skb+0x10/0x10 [ 287.220021][ C1] alloc_skb_with_frags+0xc3/0x770 [ 287.220058][ C1] sock_alloc_send_pskb+0x91a/0xa60 [ 287.220101][ C1] ? __pfx_sock_alloc_send_pskb+0x10/0x10 [ 287.220121][ C1] ? do_raw_spin_unlock+0x13c/0x8b0 [ 287.220145][ C1] unix_dgram_sendmsg+0x6d3/0x1f80 [ 287.220228][ C1] ? tomoyo_socket_sendmsg_permission+0x288/0x420 [ 287.220256][ C1] ? __pfx_tomoyo_socket_sendmsg_permission+0x10/0x10 [ 287.220276][ C1] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 287.220298][ C1] ? bpf_lsm_socket_sendmsg+0x9/0x10 [ 287.220315][ C1] ? security_socket_sendmsg+0x87/0xb0 [ 287.220331][ C1] ? __pfx_unix_dgram_sendmsg+0x10/0x10 [ 287.220347][ C1] __sock_sendmsg+0x221/0x270 [ 287.220404][ C1] __sys_sendto+0x3a4/0x4f0 [ 287.220421][ C1] ? __pfx___sys_sendto+0x10/0x10 [ 287.220448][ C1] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.220465][ C1] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.220483][ C1] __x64_sys_sendto+0xde/0x100 [ 287.220499][ C1] do_syscall_64+0xf5/0x240 [ 287.220519][ C1] ? clear_bhb_loop+0x35/0x90 [ 287.220537][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.220553][ C1] RIP: 0033:0x7f4b553e09b5 [ 287.220566][ C1] Code: 8b 44 24 08 48 83 c4 28 48 98 c3 48 98 c3 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 26 45 31 c9 45 31 c0 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 7a 48 8b 15 44 c4 0c 00 f7 d8 64 89 02 48 83 [ 287.220578][ C1] RSP: 002b:00007ffff2645788 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 287.220593][ C1] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4b553e09b5 [ 287.220604][ C1] RDX: 000000000000004c RSI: 000055e37aef0d80 RDI: 0000000000000003 [ 287.220613][ C1] RBP: 000055e37aeec910 R08: 0000000000000000 R09: 0000000000000000 [ 287.220623][ C1] R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013 [ 287.220632][ C1] R13: 00007f4b5556e212 R14: 00007ffff2645888 R15: 0000000000000000 [ 287.220650][ C1] [ 287.220657][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.320 msecs [ 287.221341][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 287.221352][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.9.0-rc7-syzkaller-00136-gf4345f05c0df #0 [ 287.221370][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 [ 287.221379][ T29] Call Trace: [ 287.221387][ T29] [ 287.221394][ T29] dump_stack_lvl+0x241/0x360 [ 287.221422][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.221446][ T29] ? __pfx__printk+0x10/0x10 [ 287.221467][ T29] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.221492][ T29] ? vscnprintf+0x5d/0x90 [ 287.221512][ T29] panic+0x349/0x860 [ 287.221536][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.221557][ T29] ? __pfx_panic+0x10/0x10 [ 287.221577][ T29] ? tick_nohz_tick_stopped+0x82/0xb0 [ 287.221600][ T29] ? __irq_work_queue_local+0x137/0x410 [ 287.221635][ T29] ? preempt_schedule_thunk+0x1a/0x30 [ 287.221655][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.221673][ T29] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 287.221695][ T29] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 287.221717][ T29] watchdog+0x101d/0x1020 [ 287.221736][ T29] ? watchdog+0x1ea/0x1020 [ 287.221757][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.221774][ T29] kthread+0x2f0/0x390 [ 287.221795][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.221810][ T29] ? __pfx_kthread+0x10/0x10 [ 287.221831][ T29] ret_from_fork+0x4b/0x80 [ 287.221853][ T29] ? __pfx_kthread+0x10/0x10 [ 287.221878][ T29] ret_from_fork_asm+0x1a/0x30 [ 287.221913][ T29] [ 287.225198][ T29] Kernel Offset: disabled [ 287.821757][ T29] Rebooting in 86400 seconds..