./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4245004011 <...> Warning: Permanently added '10.128.0.232' (ED25519) to the list of known hosts. execve("./syz-executor4245004011", ["./syz-executor4245004011"], 0x7ffdec4751e0 /* 10 vars */) = 0 brk(NULL) = 0x555571f99000 brk(0x555571f99d00) = 0x555571f99d00 arch_prctl(ARCH_SET_FS, 0x555571f99380) = 0 set_tid_address(0x555571f99650) = 5838 set_robust_list(0x555571f99660, 24) = 0 rseq(0x555571f99ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor4245004011", 4096) = 28 getrandom("\x6a\xcb\x4c\x8e\x44\x9d\x3b\xeb", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555571f99d00 brk(0x555571fbad00) = 0x555571fbad00 brk(0x555571fbb000) = 0x555571fbb000 mprotect(0x7fc79ddaf000, 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./strace-static-x86_64: Process 5839 attached , child_tidptr=0x555571f99650) = 5839 [pid 5839] set_robust_list(0x555571f99660, 24) = 0 [pid 5839] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5839] setpgid(0, 0) = 0 [pid 5839] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5839] write(3, "1000", 4) = 4 [pid 5839] close(3) = 0 executing program [pid 5839] write(1, "executing program\n", 18) = 18 [pid 5839] openat(AT_FDCWD, "/dev/nbd0", O_RDONLY) = 3 [ 271.030285][ T29] audit: type=1400 audit(1733622293.069:88): avc: denied { execmem } for pid=5838 comm="syz-executor424" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [pid 5839] socket(AF_INET, SOCK_SEQPACKET, IPPROTO_IP) = 4 [ 271.057363][ T29] audit: type=1400 audit(1733622293.099:89): avc: denied { read } for pid=5839 comm="syz-executor424" name="nbd0" dev="devtmpfs" ino=679 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 271.081186][ T29] audit: type=1400 audit(1733622293.099:90): avc: denied { open } for pid=5839 comm="syz-executor424" path="/dev/nbd0" dev="devtmpfs" ino=679 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [ 271.105921][ T29] audit: type=1400 audit(1733622293.129:91): avc: denied { ioctl } for pid=5839 comm="syz-executor424" path="/dev/nbd0" dev="devtmpfs" ino=679 ioctlcmd=0xab00 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fixed_disk_device_t tclass=blk_file permissive=1 [pid 5839] ioctl(3, NBD_SET_SOCK, 4) = 0 [pid 5839] listen(4, 7757) = 0 [ 271.173627][ T29] audit: type=1400 audit(1733622293.219:92): avc: denied { module_request } for pid=5839 comm="syz-executor424" kmod="crypto-hmac(md5)" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [pid 5839] ioctl(3, NBD_DO_IT [pid 5838] kill(-5839, SIGKILL) = 0 [pid 5838] kill(5839, SIGKILL) = 0 [ 276.056520][ T5839] block nbd0: shutting down sockets [pid 5838] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5838] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5838] getdents64(3, 0x555571f9a6f0 /* 2 entries */, 32768) = 48 [pid 5838] getdents64(3, 0x555571f9a6f0 /* 0 entries */, 32768) = 0 [pid 5838] close(3) = 0 [ 429.371077][ T30] INFO: task syz-executor424:5839 blocked for more than 143 seconds. [ 429.379210][ T30] Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 [ 429.386858][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 429.395617][ T30] task:syz-executor424 state:D stack:26576 pid:5839 tgid:5839 ppid:5838 flags:0x00004006 [ 429.405842][ T30] Call Trace: [ 429.409111][ T30] [ 429.412063][ T30] __schedule+0xe58/0x5ad0 [ 429.416511][ T30] ? __pfx___lock_acquire+0x10/0x10 [ 429.421711][ T30] ? __lock_acquire+0x15a9/0x3c40 [ 429.426745][ T30] ? __pfx___schedule+0x10/0x10 [ 429.431601][ T30] ? schedule+0x298/0x350 [ 429.435923][ T30] ? __pfx_lock_release+0x10/0x10 [ 429.440965][ T30] ? lock_acquire+0x2f/0xb0 [ 429.445470][ T30] ? schedule+0x1fd/0x350 [ 429.449776][ T30] schedule+0xe7/0x350 [ 429.453910][ T30] schedule_timeout+0x244/0x280 [ 429.458754][ T30] ? __pfx_schedule_timeout+0x10/0x10 [ 429.464225][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.469511][ T30] __wait_for_common+0x3e1/0x600 [ 429.474466][ T30] ? __pfx_schedule_timeout+0x10/0x10 [ 429.479841][ T30] ? __pfx___wait_for_common+0x10/0x10 [ 429.485314][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.490508][ T30] ? flush_workqueue_prep_pwqs+0x2e9/0x510 [ 429.496329][ T30] ? check_flush_dependency+0x86/0x450 [ 429.501831][ T30] __flush_workqueue+0x39e/0x1200 [ 429.506857][ T30] ? _raw_spin_unlock_irqrestore+0x52/0x80 [ 429.512694][ T30] ? lockdep_hardirqs_on+0x7c/0x110 [ 429.517902][ T30] ? __pfx___flush_workqueue+0x10/0x10 [ 429.523400][ T30] ? blk_mq_unquiesce_queue+0xbf/0x100 [ 429.528864][ T30] nbd_ioctl+0x308/0xfd0 [ 429.533167][ T30] ? __pfx_nbd_ioctl+0x10/0x10 [ 429.537932][ T30] ? __pfx_ioctl_has_perm.constprop.0.isra.0+0x10/0x10 [ 429.544793][ T30] ? __pfx_autoremove_wake_function+0x10/0x10 [ 429.550857][ T30] ? __pfx_nbd_ioctl+0x10/0x10 [ 429.555643][ T30] blkdev_ioctl+0x276/0x6d0 [ 429.560120][ T30] ? __pfx_blkdev_ioctl+0x10/0x10 [ 429.565179][ T30] ? selinux_file_ioctl+0x180/0x270 [ 429.570379][ T30] ? selinux_file_ioctl+0xb4/0x270 [ 429.575497][ T30] ? __pfx_blkdev_ioctl+0x10/0x10 [ 429.580512][ T30] __x64_sys_ioctl+0x190/0x200 [ 429.585329][ T30] do_syscall_64+0xcd/0x250 [ 429.589834][ T30] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 429.595741][ T30] RIP: 0033:0x7fc79dd3c879 [ 429.600147][ T30] RSP: 002b:00007fff577384e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 429.608565][ T30] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fc79dd3c879 [ 429.616561][ T30] RDX: 0000000000000000 RSI: 000000000000ab03 RDI: 0000000000000003 [ 429.624530][ T30] RBP: 00007fc79ddaf5f0 R08: 0000000000000006 R09: 0000000000000006 [ 429.632520][ T30] R10: 0000000000000006 R11: 0000000000000246 R12: 0000000000000001 [ 429.640485][ T30] R13: 431bde82d7b634db R14: 0000000000000001 R15: 0000000000000001 [ 429.648493][ T30] [ 429.651537][ T30] [ 429.651537][ T30] Showing all locks held in the system: [ 429.659247][ T30] 6 locks held by kworker/u8:0/11: [ 429.664376][ T30] #0: ffff8880b873ebd8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x29/0x130 [ 429.674329][ T30] #1: ffff8880b8728a88 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x203/0x8e0 [ 429.685728][ T30] #2: ffffffff9aa19d48 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_deactivate+0x13b/0x370 [ 429.696338][ T30] #3: ffffffff9aa83048 (&obj_hash[i].lock){-.-.}-{2:2}, at: debug_object_activate+0x149/0x4a0 [ 429.706697][ T30] #4: ffffffff8e07c488 (text_mutex){+.+.}-{4:4}, at: arch_jump_label_transform_apply+0x17/0x30 [ 429.717172][ T30] #5: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: __pte_offset_map+0x42/0x540 [ 429.726677][ T30] 1 lock held by khungtaskd/30: [ 429.731527][ T30] #0: ffffffff8e1bb500 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x7f/0x390 [ 429.741387][ T30] 2 locks held by kworker/u9:1/5142: [ 429.746654][ T30] #0: ffff888026023148 ((wq_completion)nbd0-recv){+.+.}-{0:0}, at: process_one_work+0x1293/0x1ba0 [ 429.757368][ T30] #1: ffffc90010827d80 ((work_completion)(&args->work)){+.+.}-{0:0}, at: process_one_work+0x921/0x1ba0 [ 429.768532][ T30] 2 locks held by getty/5577: [ 429.773214][ T30] #0: ffff88814dd390a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 [ 429.782997][ T30] #1: ffffc90002fde2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0xfba/0x1480 [ 429.793129][ T30] [ 429.795448][ T30] ============================================= [ 429.795448][ T30] [ 429.803874][ T30] NMI backtrace for cpu 0 [ 429.808188][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 [ 429.818666][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 429.828705][ T30] Call Trace: [ 429.831967][ T30] [ 429.834896][ T30] dump_stack_lvl+0x116/0x1f0 [ 429.839562][ T30] nmi_cpu_backtrace+0x27b/0x390 [ 429.844482][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 429.850443][ T30] nmi_trigger_cpumask_backtrace+0x29c/0x300 [ 429.856408][ T30] watchdog+0xf14/0x1240 [ 429.860640][ T30] ? __pfx_watchdog+0x10/0x10 [ 429.865308][ T30] ? lockdep_hardirqs_on+0x7c/0x110 [ 429.870492][ T30] ? __kthread_parkme+0x148/0x220 [ 429.875520][ T30] ? __pfx_watchdog+0x10/0x10 [ 429.880190][ T30] kthread+0x2c1/0x3a0 [ 429.884253][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.889437][ T30] ? __pfx_kthread+0x10/0x10 [ 429.894016][ T30] ret_from_fork+0x45/0x80 [ 429.898415][ T30] ? __pfx_kthread+0x10/0x10 [ 429.902993][ T30] ret_from_fork_asm+0x1a/0x30 [ 429.907761][ T30] [ 429.910819][ T30] Sending NMI from CPU 0 to CPUs 1: [ 429.916045][ C1] NMI backtrace for cpu 1 [ 429.916055][ C1] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 [ 429.916069][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 429.916075][ C1] RIP: 0010:kasan_check_range+0x1b/0x1a0 [ 429.916097][ C1] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 48 85 f6 0f 84 50 01 00 00 48 89 f8 41 54 44 0f b6 c2 48 01 f0 55 53 <0f> 82 c6 00 00 00 48 b8 ff ff ff ff ff 7f ff ff 48 39 f8 0f 83 b3 [ 429.916109][ C1] RSP: 0018:ffffc90000a18bf0 EFLAGS: 00000092 [ 429.916120][ C1] RAX: ffffffff96e52ce0 RBX: 00000000000000da RCX: ffffffff8175c37e [ 429.916129][ C1] RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff96e52cd8 [ 429.916137][ C1] RBP: ffffc90000a18d60 R08: 0000000000000000 R09: 0000000000000001 [ 429.916145][ C1] R10: ffffffff96e52cdf R11: 0000000000000000 R12: ffff88801d6cc880 [ 429.916153][ C1] R13: 0000000000000001 R14: 0000000000000000 R15: 1ffff9200014318a [ 429.916160][ C1] FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 [ 429.916174][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 429.916182][ C1] CR2: 000055e508177a88 CR3: 00000000352d6000 CR4: 00000000003526f0 [ 429.916191][ C1] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 429.916198][ C1] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 429.916206][ C1] Call Trace: [ 429.916210][ C1] [ 429.916215][ C1] ? nmi_cpu_backtrace+0x1d8/0x390 [ 429.916230][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 429.916243][ C1] ? nmi_handle+0x1ac/0x5d0 [ 429.916257][ C1] ? kasan_check_range+0x1b/0x1a0 [ 429.916273][ C1] ? default_do_nmi+0x6a/0x160 [ 429.916286][ C1] ? exc_nmi+0x170/0x1e0 [ 429.916298][ C1] ? end_repeat_nmi+0xf/0x53 [ 429.916317][ C1] ? hlock_class+0x4e/0x130 [ 429.916335][ C1] ? kasan_check_range+0x1b/0x1a0 [ 429.916351][ C1] ? kasan_check_range+0x1b/0x1a0 [ 429.916368][ C1] ? kasan_check_range+0x1b/0x1a0 [ 429.916385][ C1] [ 429.916389][ C1] [ 429.916393][ C1] hlock_class+0x4e/0x130 [ 429.916409][ C1] mark_lock+0xb5/0xc60 [ 429.916422][ C1] ? __pfx_mark_lock+0x10/0x10 [ 429.916434][ C1] ? __pfx_mark_lock+0x10/0x10 [ 429.916446][ C1] ? __pfx_mark_lock+0x10/0x10 [ 429.916458][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 429.916472][ C1] ? rcu_is_watching+0x12/0xc0 [ 429.916490][ C1] ? lock_acquire.part.0+0x11b/0x380 [ 429.916503][ C1] ? kvm_sched_clock_read+0x11/0x20 [ 429.916517][ C1] ? sched_clock+0x38/0x60 [ 429.916535][ C1] ? find_held_lock+0x2d/0x110 [ 429.916552][ C1] __lock_acquire+0x1390/0x3c40 [ 429.916568][ C1] ? __pfx___lock_acquire+0x10/0x10 [ 429.916580][ C1] ? sched_clock+0x38/0x60 [ 429.916597][ C1] ? sched_clock_cpu+0x6d/0x4d0 [ 429.916612][ C1] lock_acquire.part.0+0x11b/0x380 [ 429.916625][ C1] ? tick_nohz_irq_exit+0x7e/0xc0 [ 429.916638][ C1] ? __pfx_lock_acquire.part.0+0x10/0x10 [ 429.916651][ C1] ? rcu_is_watching+0x12/0xc0 [ 429.916667][ C1] ? trace_lock_acquire+0x14e/0x1f0 [ 429.916683][ C1] ? handle_softirqs+0x5bb/0x8f0 [ 429.916699][ C1] ? tick_nohz_irq_exit+0x7e/0xc0 [ 429.916710][ C1] ? lock_acquire+0x2f/0xb0 [ 429.916723][ C1] ? tick_nohz_irq_exit+0x7e/0xc0 [ 429.916735][ C1] tick_nohz_start_idle+0xa7/0x2a0 [ 429.916753][ C1] ? tick_nohz_irq_exit+0x7e/0xc0 [ 429.916764][ C1] tick_nohz_irq_exit+0x7e/0xc0 [ 429.916775][ C1] irq_exit_rcu+0x9/0x30 [ 429.916789][ C1] sysvec_call_function_single+0xa4/0xc0 [ 429.916804][ C1] [ 429.916808][ C1] [ 429.916812][ C1] asm_sysvec_call_function_single+0x1a/0x20 [ 429.916829][ C1] RIP: 0010:acpi_safe_halt+0x1a/0x20 [ 429.916852][ C1] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 d8 c4 d9 74 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 48 38 b3 00 fb f4 c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 [ 429.916862][ C1] RSP: 0018:ffffc900001a7d58 EFLAGS: 00000246 [ 429.916872][ C1] RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8b29f759 [ 429.916880][ C1] RDX: 0000000000000001 RSI: ffff8881446c8800 RDI: ffff8881446c8864 [ 429.916888][ C1] RBP: ffff8881446c8864 R08: 0000000000000001 R09: ffffed10170e6fed [ 429.916896][ C1] R10: ffff8880b8737f6b R11: 0000000000000000 R12: ffff888148286800 [ 429.916903][ C1] R13: ffffffff8ee14920 R14: 0000000000000001 R15: 0000000000000000 [ 429.916914][ C1] ? ct_kernel_exit+0x139/0x190 [ 429.916931][ C1] acpi_idle_enter+0xc5/0x160 [ 429.916949][ C1] cpuidle_enter_state+0xaa/0x4f0 [ 429.916965][ C1] ? __pfx_tsc_verify_tsc_adjust+0x10/0x10 [ 429.916979][ C1] cpuidle_enter+0x4e/0xa0 [ 429.916998][ C1] do_idle+0x310/0x3f0 [ 429.917011][ C1] ? __pfx_do_idle+0x10/0x10 [ 429.917025][ C1] cpu_startup_entry+0x4f/0x60 [ 429.917038][ C1] start_secondary+0x222/0x2b0 [ 429.917049][ C1] ? __pfx_start_secondary+0x10/0x10 [ 429.917069][ C1] common_startup_64+0x13e/0x148 [ 429.917088][ C1] [ 429.917092][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.047 msecs [ 429.918043][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 429.918053][ T30] CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.13.0-rc1-syzkaller-00337-g7503345ac5f5 #0 [ 429.918071][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 [ 429.918080][ T30] Call Trace: [ 429.918085][ T30] [ 429.918091][ T30] dump_stack_lvl+0x3d/0x1f0 [ 429.918112][ T30] panic+0x71d/0x800 [ 429.918136][ T30] ? __pfx_panic+0x10/0x10 [ 429.918157][ T30] ? __pfx__printk+0x10/0x10 [ 429.918178][ T30] ? irq_work_claim+0x76/0xa0 [ 429.918198][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 429.918212][ T30] ? irq_work_queue+0x2a/0x80 [ 429.918231][ T30] ? watchdog+0xd7e/0x1240 [ 429.918249][ T30] ? watchdog+0xd71/0x1240 [ 429.918270][ T30] watchdog+0xd8f/0x1240 [ 429.918293][ T30] ? __pfx_watchdog+0x10/0x10 [ 429.918311][ T30] ? lockdep_hardirqs_on+0x7c/0x110 [ 429.918331][ T30] ? __kthread_parkme+0x148/0x220 [ 429.918353][ T30] ? __pfx_watchdog+0x10/0x10 [ 429.918372][ T30] kthread+0x2c1/0x3a0 [ 429.918391][ T30] ? _raw_spin_unlock_irq+0x23/0x50 [ 429.918409][ T30] ? __pfx_kthread+0x10/0x10 [ 429.918431][ T30] ret_from_fork+0x45/0x80 [ 429.918446][ T30] ? __pfx_kthread+0x10/0x10 [ 429.918467][ T30] ret_from_fork_asm+0x1a/0x30 [ 429.918498][ T30] [ 430.533949][ T30] Kernel Offset: disabled [ 430.538247][ T30] Rebooting in 86400 seconds..