./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3434509471 <...> Warning: Permanently added '10.128.10.27' (ECDSA) to the list of known hosts. execve("./syz-executor3434509471", ["./syz-executor3434509471"], 0x7ffe5cf08230 /* 10 vars */) = 0 brk(NULL) = 0x555555bee000 brk(0x555555beec40) = 0x555555beec40 arch_prctl(ARCH_SET_FS, 0x555555bee300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3434509471", 4096) = 28 brk(0x555555c0fc40) = 0x555555c0fc40 brk(0x555555c10000) = 0x555555c10000 mprotect(0x7f9c40071000, 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 openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 3 ioctl(3, LOOP_CLR_FD) = -1 ENXIO (No such device or address) close(3) = 0 clone(child_stack=NULL, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0x555555bee5d0) = 5065 ./strace-static-x86_64: Process 5065 attached [pid 5065] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5065] setpgid(0, 0) = 0 [pid 5065] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5065] write(3, "1000", 4) = 4 [pid 5065] close(3) = 0 [pid 5065] memfd_create("syzkaller", 0) = 3 [pid 5065] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9c37bb6000 [pid 5065] write(3, "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"..., 1048576) = 1048576 [pid 5065] munmap(0x7f9c37bb6000, 1048576) = 0 [pid 5065] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5065] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5065] close(3) = 0 [pid 5065] mkdir("./file0", 0777) = 0 [ 76.226552][ T5065] loop0: detected capacity change from 0 to 2048 [ 76.238512][ T5065] ======================================================= [ 76.238512][ T5065] WARNING: The mand mount option has been deprecated and [ 76.238512][ T5065] and is ignored by this kernel. Remove the mand [ 76.238512][ T5065] option from the mount to silence this warning. [ 76.238512][ T5065] ======================================================= [pid 5065] mount("/dev/loop0", "./file0", "ext4", MS_MANDLOCK|MS_DIRSYNC|MS_NOATIME, ",errors=continue") = 0 [pid 5065] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5065] chdir("./file0") = 0 [pid 5065] ioctl(4, LOOP_CLR_FD) = 0 [pid 5065] close(4) = 0 [pid 5065] chdir("./file0") = 0 [pid 5065] open(".", O_RDONLY) = 4 [ 76.281216][ T5065] EXT4-fs (loop0): warning: checktime reached, running e2fsck is recommended [ 76.296180][ T5065] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. [pid 5065] mkdirat(4, "\x13\x13\x77\xc5\xfc\x35\xd4\x14\x54\xd5\xd4\x1d\x29\xad\x1a\x60\x29\x59\x81\x46\xe6\xbe\x16\x6e\x41\xad\x0d\xbd\x40\x54\x03\x3c\x9f\x33\xbb\xda\x82\x24\xa2\xf3\xd7\x72\xe7\x63\x6e\x48\xb3\x3c\xbf\x70\x83\x72\xe8\xf1\xb9\x93\x3e\xc5\x12\x77\x43\xbe\x22\x06\x20\x9e\xf0\x2d\xf9\xcb\xf2\xf6\xe8\x80\xd3\x38\x2f", 000 [pid 5064] kill(-5065, SIGKILL) = 0 [pid 5064] kill(5065, SIGKILL) = 0 [pid 5064] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5064] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5064] getdents64(3, 0x555555bef620 /* 2 entries */, 32768) = 48 [pid 5064] getdents64(3, 0x555555bef620 /* 0 entries */, 32768) = 0 [pid 5064] close(3) = 0 [ 81.400510][ T26] cfg80211: failed to load regulatory.db [ 286.199142][ T28] INFO: task syz-executor343:5065 blocked for more than 143 seconds. [ 286.207423][ T28] Not tainted 6.2.0-syzkaller #0 [ 286.213090][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.221852][ T28] task:syz-executor343 state:D stack:23504 pid:5065 ppid:5064 flags:0x00004004 [ 286.231195][ T28] Call Trace: [ 286.234506][ T28] [ 286.237460][ T28] __schedule+0x1409/0x43f0 [ 286.242098][ T28] ? mark_lock+0x9a/0x340 [ 286.246639][ T28] ? release_firmware_map_entry+0x190/0x190 [ 286.252642][ T28] ? do_raw_spin_unlock+0x13b/0x8b0 [ 286.257906][ T28] ? lockdep_hardirqs_on+0x98/0x140 [ 286.263295][ T28] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.269285][ T28] ? _raw_spin_unlock+0x40/0x40 [ 286.274169][ T28] schedule+0xc3/0x190 [ 286.278257][ T28] io_schedule+0x8c/0x100 [ 286.282657][ T28] bit_wait_io+0x12/0xc0 [ 286.286944][ T28] __wait_on_bit_lock+0xbd/0x1a0 [ 286.291970][ T28] ? bit_wait+0xc0/0xc0 [ 286.296179][ T28] out_of_line_wait_on_bit_lock+0x1d4/0x250 [ 286.302166][ T28] ? bit_wait+0xc0/0xc0 [ 286.306363][ T28] ? __wait_on_bit_lock+0x1a0/0x1a0 [ 286.311636][ T28] ? bit_waitqueue+0x30/0x30 [ 286.316299][ T28] __sync_dirty_buffer+0x120/0x380 [ 286.321489][ T28] __ext4_handle_dirty_metadata+0x2a6/0x820 [ 286.327427][ T28] ext4_handle_dirty_dirblock+0x362/0x6f0 [ 286.333272][ T28] ? ext4_has_metadata_csum+0x1c0/0x1c0 [ 286.338936][ T28] ? memcpy+0x40/0x70 [ 286.342973][ T28] ? ext4_init_dot_dotdot+0x31a/0x4f0 [ 286.348377][ T28] ? ext4_finish_convert_inline_dir+0xf6/0x6f0 [ 286.354645][ T28] ext4_finish_convert_inline_dir+0x57b/0x6f0 [ 286.360833][ T28] ext4_convert_inline_data_nolock+0xa01/0xd80 [ 286.367030][ T28] ? ext4_add_dirent_to_inline+0x4f0/0x4f0 [ 286.372929][ T28] ? get_max_inline_xattr_value_size+0x3f4/0x510 [ 286.379366][ T28] ext4_try_add_inline_entry+0x809/0xb70 [ 286.385035][ T28] ? ext4_da_write_inline_data_begin+0xe40/0xe40 [ 286.391452][ T28] ? ext4_try_create_inline_dir+0x27a/0x320 [ 286.397489][ T28] ext4_add_entry+0x535/0x1010 [ 286.402341][ T28] ? ext4_blocks_for_truncate+0x270/0x270 [ 286.408134][ T28] ? ext4_inc_count+0x190/0x190 [ 286.413096][ T28] ? ext4_init_dot_dotdot+0x4f0/0x4f0 [ 286.418514][ T28] ? smack_inode_permission+0x2dc/0x380 [ 286.424176][ T28] ext4_mkdir+0x553/0xce0 [ 286.428575][ T28] ? ext4_symlink+0xb30/0xb30 [ 286.433354][ T28] ? bpf_lsm_inode_mkdir+0x9/0x10 [ 286.438406][ T28] ? security_inode_mkdir+0xb8/0x100 [ 286.443784][ T28] vfs_mkdir+0x3ba/0x590 [ 286.448087][ T28] do_mkdirat+0x246/0x500 [ 286.452514][ T28] ? vfs_mkdir+0x590/0x590 [ 286.457036][ T28] ? getname_flags+0x1f0/0x4e0 [ 286.461906][ T28] __x64_sys_mkdirat+0x89/0xa0 [ 286.466718][ T28] do_syscall_64+0x41/0xc0 [ 286.471211][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.477158][ T28] RIP: 0033:0x7f9c40003249 [ 286.481645][ T28] RSP: 002b:00007ffd6ee82a88 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 [ 286.490127][ T28] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007f9c40003249 [ 286.498144][ T28] RDX: 0000000000000000 RSI: 0000000020000540 RDI: 0000000000000004 [ 286.506203][ T28] RBP: 0000000000000000 R08: 00007f9c40071ec0 R09: 00007f9c40071ec0 [ 286.514249][ T28] R10: 00007f9c40071ec0 R11: 0000000000000246 R12: 00007ffd6ee82ab0 [ 286.522324][ T28] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 286.530370][ T28] [ 286.533413][ T28] [ 286.533413][ T28] Showing all locks held in the system: [ 286.541300][ T28] 1 lock held by rcu_tasks_kthre/12: [ 286.546607][ T28] #0: ffffffff8cf25950 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 [ 286.557250][ T28] 1 lock held by rcu_tasks_trace/13: [ 286.562640][ T28] #0: ffffffff8cf26150 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xce0 [ 286.573714][ T28] 1 lock held by khungtaskd/28: [ 286.578584][ T28] #0: ffffffff8cf25780 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 286.588040][ T28] 5 locks held by kworker/u4:6/2405: [ 286.593412][ T28] 2 locks held by getty/4740: [ 286.598107][ T28] #0: ffff88802c0b3098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.607970][ T28] #1: ffffc900015b02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 [ 286.618179][ T28] 3 locks held by syz-executor343/5065: [ 286.623780][ T28] #0: ffff88802c132460 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 286.633049][ T28] #1: ffff8880768d8e08 (&type->i_mutex_dir_key#3/1){+.+.}-{3:3}, at: filename_create+0x25a/0x530 [ 286.643800][ T28] #2: ffff8880768d8ad0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_try_add_inline_entry+0xf6/0xb70 [ 286.654269][ T28] [ 286.656598][ T28] ============================================= [ 286.656598][ T28] [ 286.665069][ T28] NMI backtrace for cpu 1 [ 286.669439][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-syzkaller #0 [ 286.677180][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 286.687311][ T28] Call Trace: [ 286.690612][ T28] [ 286.693555][ T28] dump_stack_lvl+0x1e7/0x2d0 [ 286.698430][ T28] ? nf_tcp_handle_invalid+0x640/0x640 [ 286.703911][ T28] ? panic+0x770/0x770 [ 286.708006][ T28] ? nmi_cpu_backtrace+0x256/0x560 [ 286.713232][ T28] nmi_cpu_backtrace+0x4e5/0x560 [ 286.718199][ T28] ? vprintk_emit+0x10d/0x1f0 [ 286.722904][ T28] ? nmi_trigger_cpumask_backtrace+0x3f0/0x3f0 [ 286.729107][ T28] ? _printk+0xd5/0x120 [ 286.733321][ T28] ? panic+0x770/0x770 [ 286.737509][ T28] ? __wake_up_klogd+0xcc/0x100 [ 286.742387][ T28] ? panic+0x770/0x770 [ 286.746468][ T28] ? nmi_trigger_cpumask_backtrace+0xe6/0x3f0 [ 286.752561][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.758646][ T28] nmi_trigger_cpumask_backtrace+0x1b4/0x3f0 [ 286.764653][ T28] watchdog+0xf70/0xfb0 [ 286.768837][ T28] kthread+0x270/0x300 [ 286.772929][ T28] ? hungtask_pm_notify+0x90/0x90 [ 286.777973][ T28] ? kthread_blkcg+0xd0/0xd0 [ 286.782583][ T28] ret_from_fork+0x1f/0x30 [ 286.787032][ T28] [ 286.790157][ T28] Sending NMI from CPU 1 to CPUs 0: [ 286.795407][ C0] NMI backtrace for cpu 0 [ 286.795417][ C0] CPU: 0 PID: 2405 Comm: kworker/u4:6 Not tainted 6.2.0-syzkaller #0 [ 286.795432][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 286.795442][ C0] Workqueue: events_unbound toggle_allocation_gate [ 286.795468][ C0] RIP: 0010:cpufreq_update_util+0x53/0x240 [ 286.795496][ C0] Code: 42 0f b6 04 28 84 c0 0f 85 90 01 00 00 48 63 5d 00 48 83 fb 08 0f 83 e2 01 00 00 48 8d 2c dd 20 58 a1 8c 48 89 e8 48 c1 e8 03 <42> 80 3c 28 00 74 08 48 89 ef e8 9e ef 7c 00 48 c7 c3 00 87 02 00 [ 286.795509][ C0] RSP: 0018:ffffc9000a9ff5a0 EFLAGS: 00000802 [ 286.795521][ C0] RAX: 1ffffffff1942b04 RBX: 0000000000000000 RCX: 0000000000000000 [ 286.795532][ C0] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff8880b983b1c0 [ 286.795542][ C0] RBP: ffffffff8ca15820 R08: 0000000000000319 R09: fffffbfff1ca4f16 [ 286.795553][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: ffff8880b983b1c0 [ 286.795563][ C0] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880b983b400 [ 286.795574][ C0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 286.795587][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.795598][ C0] CR2: 0000556d59500680 CR3: 000000000cc8e000 CR4: 00000000003506f0 [ 286.795611][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 286.795620][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 286.795629][ C0] Call Trace: [ 286.795635][ C0] [ 286.795643][ C0] update_blocked_averages+0x13e3/0x16a0 [ 286.795672][ C0] ? rebalance_domains+0xa70/0xa70 [ 286.795697][ C0] ? __sched_clock_gtod_offset+0xe0/0xe0 [ 286.795720][ C0] ? do_raw_spin_unlock+0x13b/0x8b0 [ 286.795743][ C0] newidle_balance+0x43b/0xf90 [ 286.795778][ C0] ? kvm_sched_clock_read+0x18/0x40 [ 286.795798][ C0] ? update_misfit_status+0x7d0/0x7d0 [ 286.795822][ C0] ? enqueue_task_fair+0xba0/0xba0 [ 286.795847][ C0] pick_next_task_fair+0x289/0xdc0 [ 286.795873][ C0] __schedule+0x7ad/0x43f0 [ 286.795896][ C0] ? mark_lock+0x9a/0x340 [ 286.795915][ C0] ? print_irqtrace_events+0x220/0x220 [ 286.795940][ C0] ? do_raw_spin_unlock+0x13b/0x8b0 [ 286.795959][ C0] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 286.795979][ C0] ? release_firmware_map_entry+0x190/0x190 [ 286.796000][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.796018][ C0] ? _raw_spin_unlock+0x40/0x40 [ 286.796035][ C0] ? __might_sleep+0xc0/0xc0 [ 286.796053][ C0] ? rcu_read_lock_any_held+0xb7/0x160 [ 286.796079][ C0] ? wq_worker_sleeping+0x63/0x270 [ 286.796097][ C0] schedule+0xc3/0x190 [ 286.796118][ C0] toggle_allocation_gate+0x16a/0x250 [ 286.796140][ C0] ? virt_to_slab+0x2b0/0x2b0 [ 286.796161][ C0] ? wake_bit_function+0x220/0x220 [ 286.796185][ C0] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 286.796210][ C0] ? do_raw_spin_unlock+0x13b/0x8b0 [ 286.796228][ C0] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.796248][ C0] process_one_work+0x8fa/0x1370 [ 286.796278][ C0] ? worker_detach_from_pool+0x260/0x260 [ 286.796300][ C0] ? _raw_spin_lock_irqsave+0x120/0x120 [ 286.796317][ C0] ? kthread_data+0x52/0xc0 [ 286.796345][ C0] ? wq_worker_running+0x9b/0x1a0 [ 286.796362][ C0] worker_thread+0xa63/0x1210 [ 286.796383][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.796405][ C0] ? _raw_spin_unlock+0x40/0x40 [ 286.796429][ C0] kthread+0x270/0x300 [ 286.796443][ C0] ? rcu_lock_release+0x30/0x30 [ 286.796462][ C0] ? kthread_blkcg+0xd0/0xd0 [ 286.796478][ C0] ret_from_fork+0x1f/0x30 [ 286.796508][ C0] [ 286.796515][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.107 msecs [ 286.797411][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 286.797423][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-syzkaller #0 [ 286.797446][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 286.797457][ T28] Call Trace: [ 286.797464][ T28] [ 286.797472][ T28] dump_stack_lvl+0x1e7/0x2d0 [ 286.797508][ T28] ? nf_tcp_handle_invalid+0x640/0x640 [ 286.797538][ T28] ? panic+0x770/0x770 [ 286.797568][ T28] ? vscnprintf+0x5d/0x80 [ 286.797595][ T28] panic+0x31c/0x770 [ 286.797614][ T28] ? schedule_preempt_disabled+0x20/0x20 [ 286.797648][ T28] ? nmi_trigger_cpumask_backtrace+0x2c5/0x3f0 [ 286.797682][ T28] ? memcpy_page_flushcache+0x100/0x100 [ 286.797712][ T28] ? nmi_trigger_cpumask_backtrace+0x2c5/0x3f0 [ 286.797742][ T28] ? nmi_trigger_cpumask_backtrace+0x33e/0x3f0 [ 286.797771][ T28] ? nmi_trigger_cpumask_backtrace+0x343/0x3f0 [ 286.797807][ T28] watchdog+0xfae/0xfb0 [ 286.797846][ T28] kthread+0x270/0x300 [ 286.797867][ T28] ? hungtask_pm_notify+0x90/0x90 [ 286.797888][ T28] ? kthread_blkcg+0xd0/0xd0 [ 286.797912][ T28] ret_from_fork+0x1f/0x30 [ 286.797959][ T28] [ 286.801473][ T28] Kernel Offset: disabled [ 287.273576][ T28] Rebooting in 86400 seconds..