./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2008541239 <...> DUID 00:04:a4:32:67:f0:55:bb:60:fb:9b:a6:3e:57:83:d8:2c:c8 forked to background, child pid 4665 [ 20.328594][ T4666] 8021q: adding VLAN 0 to HW filter on device bond0 [ 20.339133][ T4666] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.60' (ECDSA) to the list of known hosts. execve("./syz-executor2008541239", ["./syz-executor2008541239"], 0x7fff27f8ccb0 /* 10 vars */) = 0 brk(NULL) = 0x5555566dd000 brk(0x5555566ddc40) = 0x5555566ddc40 arch_prctl(ARCH_SET_FS, 0x5555566dd300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2008541239", 4096) = 28 brk(0x5555566fec40) = 0x5555566fec40 brk(0x5555566ff000) = 0x5555566ff000 mprotect(0x7f9ea1752000, 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=0x5555566dd5d0) = 4998 ./strace-static-x86_64: Process 4998 attached [pid 4998] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4998] setpgid(0, 0) = 0 [pid 4998] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4998] write(3, "1000", 4) = 4 [pid 4998] close(3) = 0 [pid 4998] memfd_create("syzkaller", 0) = 3 [pid 4998] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f9e9928c000 syzkaller login: [ 41.913788][ T4998] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4998 'syz-executor200' [pid 4998] write(3, "\x58\x46\x53\x42\x00\x00\x02\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x5e\x62\x73\xb8\x21\x67\x42\xbb\x91\x1b\x41\x8a\xa1\x4a\x12\x61\x00\x00\x00\x00\x00\x00\xff\x80\x00\x00\x00\x00\x00\x00\x00\x20\x00\x00\x00\x00\x00\x00\x00\x21\x00\x00\x00\x00\x00\x00\x00\x22\x00\x00\x00\x08\x00\x00\x80\x00\x00\x00\x00\x02\x00\x00\x00\x00\x00\x00\x0b\x40"..., 33554432) = 33554432 [pid 4998] munmap(0x7f9e9928c000, 33554432) = 0 [pid 4998] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4998] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4998] close(3) = 0 [pid 4998] mkdir("./file0", 0777) = 0 [ 42.104214][ T4998] loop0: detected capacity change from 0 to 65536 [ 42.129528][ T4998] XFS (loop0): Deprecated V4 format (crc=0) will not be supported after September 2030. [ 42.140384][ T4998] XFS (loop0): Mounting V4 Filesystem 5e6273b8-2167-42bb-911b-418aa14a1261 [pid 4998] mount("/dev/loop0", "./file0", "xfs", MS_LAZYTIME, "prjquota,nolazytime,grpid,noalign,uqnoenforce,,nouuid") = 0 [pid 4998] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 4998] chdir("./file0") = 0 [pid 4998] ioctl(4, LOOP_CLR_FD) = 0 [pid 4998] close(4) = 0 [pid 4998] openat(AT_FDCWD, "cgroup.controllers", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 4 [pid 4998] ioctl(4, FS_IOC_SETFSLABEL, "") = 0 [ 42.151338][ T4998] XFS (loop0): totally zeroed log [ 42.157849][ T4998] XFS (loop0): Ending clean mount [ 42.165005][ T4998] XFS (loop0): Quotacheck needed: Please wait. [ 42.183546][ T4998] XFS (loop0): Quotacheck: Done. [ 42.188988][ T4998] xfs filesystem being mounted at /root/file0 supports timestamps until 2038-01-19 (0x7fffffff) [ 42.208657][ T4998] syz-executor200: attempt to access beyond end of device [ 42.208657][ T4998] loop0: rw=432129, sector=65536, nr_sectors = 64 limit=65536 [ 42.223775][ T52] XFS (loop0): log I/O error -5 [ 42.228897][ T52] XFS (loop0): Filesystem has been shut down due to log error (0x2). [ 42.236979][ T52] XFS (loop0): Please unmount the filesystem and rectify the problem(s). [pid 4998] ioctl(4, FS_IOC_SETFSLABEL, "" [pid 4997] kill(-4998, SIGKILL) = 0 [pid 4997] kill(4998, SIGKILL) = 0 [pid 4997] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 4997] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 4997] getdents64(3, 0x5555566de620 /* 2 entries */, 32768) = 48 [pid 4997] getdents64(3, 0x5555566de620 /* 0 entries */, 32768) = 0 [pid 4997] close(3) = 0 [ 70.497927][ T7] cfg80211: failed to load regulatory.db [ 285.535875][ T27] INFO: task kworker/1:1H:52 blocked for more than 143 seconds. [ 285.543619][ T27] Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0 [ 285.551205][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 285.559960][ T27] task:kworker/1:1H state:D stack:28080 pid:52 ppid:2 flags:0x00004000 [ 285.569231][ T27] Workqueue: xfs-log/loop0 xlog_ioend_work [ 285.575079][ T27] Call Trace: [ 285.578377][ T27] [ 285.581314][ T27] __schedule+0xc9a/0x5880 [ 285.585722][ T27] ? stack_trace_save+0x90/0xc0 [ 285.590701][ T27] ? find_held_lock+0x2d/0x110 [ 285.595490][ T27] ? io_schedule_timeout+0x150/0x150 [ 285.600799][ T27] ? lock_downgrade+0x690/0x690 [ 285.605670][ T27] ? _raw_spin_unlock_irq+0x23/0x50 [ 285.610897][ T27] ? lockdep_hardirqs_on+0x7d/0x100 [ 285.616129][ T27] schedule+0xde/0x1a0 [ 285.620185][ T27] schedule_timeout+0x276/0x2b0 [ 285.625020][ T27] ? usleep_range_state+0x1b0/0x1b0 [ 285.630247][ T27] ? __down_common+0x33d/0x680 [ 285.635021][ T27] ? lock_downgrade+0x690/0x690 [ 285.639899][ T27] ? __wake_up_common_lock+0xe2/0x140 [ 285.645312][ T27] ? mark_held_locks+0x9f/0xe0 [ 285.650104][ T27] ? _raw_spin_unlock_irq+0x23/0x50 [ 285.655329][ T27] __down_common+0x345/0x680 [ 285.659975][ T27] ? do_raw_spin_lock+0x124/0x2b0 [ 285.665014][ T27] ? up+0xb0/0xb0 [ 285.668840][ T27] ? spin_bug+0x1c0/0x1c0 [ 285.673202][ T27] ? _raw_spin_lock_irqsave+0x52/0x60 [ 285.678615][ T27] down+0x74/0xa0 [ 285.682290][ T27] xfs_buf_lock+0x125/0x490 [ 285.686853][ T27] xfs_buf_item_unpin+0x47b/0x6b0 [ 285.691897][ T27] ? xfs_buf_item_committing+0x20/0x20 [ 285.697386][ T27] xfs_trans_committed_bulk+0x362/0x7c0 [ 285.702957][ T27] ? __xfs_trans_commit+0xfa0/0xfa0 [ 285.708190][ T27] ? __wake_up_common_lock+0xe2/0x140 [ 285.713579][ T27] ? lock_downgrade+0x690/0x690 [ 285.718549][ T27] ? mark_held_locks+0x9f/0xe0 [ 285.723352][ T27] ? _raw_spin_unlock_irqrestore+0x54/0x70 [ 285.729194][ T27] ? find_held_lock+0x2d/0x110 [ 285.733978][ T27] ? xlog_cil_committed+0xc6d/0x1090 [ 285.739324][ T27] ? lock_downgrade+0x690/0x690 [ 285.744196][ T27] ? spin_bug+0x1c0/0x1c0 [ 285.748576][ T27] xlog_cil_committed+0xd09/0x1090 [ 285.753717][ T27] ? mark_held_locks+0x9f/0xe0 [ 285.758513][ T27] ? xlog_cil_cleanup_whiteouts+0x3f0/0x3f0 [ 285.764434][ T27] ? find_held_lock+0x2d/0x110 [ 285.769228][ T27] ? xlog_state_shutdown_callbacks+0x1db/0x370 [ 285.775392][ T27] ? lock_downgrade+0x690/0x690 [ 285.780302][ T27] xlog_cil_process_committed+0x123/0x1f0 [ 285.786043][ T27] xlog_state_shutdown_callbacks+0x1e3/0x370 [ 285.792016][ T27] ? do_raw_spin_lock+0x124/0x2b0 [ 285.797089][ T27] ? xlog_grant_add_space+0x160/0x160 [ 285.802486][ T27] ? spin_bug+0x1c0/0x1c0 [ 285.806968][ T27] xlog_force_shutdown+0x1e3/0x3f0 [ 285.812136][ T27] xlog_ioend_work+0xe7/0x110 [ 285.816855][ T27] process_one_work+0x99a/0x15e0 [ 285.821841][ T27] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 285.827242][ T27] ? spin_bug+0x1c0/0x1c0 [ 285.831613][ T27] ? _raw_spin_lock_irq+0x45/0x50 [ 285.836669][ T27] worker_thread+0x67d/0x10c0 [ 285.841375][ T27] ? process_one_work+0x15e0/0x15e0 [ 285.846598][ T27] kthread+0x344/0x440 [ 285.850685][ T27] ? kthread_complete_and_exit+0x40/0x40 [ 285.856360][ T27] ret_from_fork+0x1f/0x30 [ 285.860809][ T27] [ 285.863893][ T27] INFO: task syz-executor200:4998 blocked for more than 143 seconds. [ 285.871980][ T27] Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0 [ 285.879534][ T27] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 285.888211][ T27] task:syz-executor200 state:D stack:24808 pid:4998 ppid:4997 flags:0x00004004 [ 285.897439][ T27] Call Trace: [ 285.900698][ T27] [ 285.903612][ T27] __schedule+0xc9a/0x5880 [ 285.908067][ T27] ? io_schedule_timeout+0x150/0x150 [ 285.913373][ T27] ? preempt_schedule_common+0x45/0xb0 [ 285.918871][ T27] ? preempt_schedule_thunk+0x1a/0x20 [ 285.924273][ T27] schedule+0xde/0x1a0 [ 285.928409][ T27] xlog_wait_on_iclog+0x48f/0x6c0 [ 285.933455][ T27] ? xfs_log_mount+0x700/0x700 [ 285.938246][ T27] ? wake_up_state+0x10/0x10 [ 285.942850][ T27] ? xlog_state_release_iclog+0x237/0x7f0 [ 285.948598][ T27] xlog_force_lsn+0x6a6/0x910 [ 285.953304][ T27] ? xlog_write_get_more_iclog_space+0x470/0x470 [ 285.959656][ T27] ? lockdep_hardirqs_on+0x7d/0x100 [ 285.964877][ T27] ? slab_free_freelist_hook+0x8b/0x1c0 [ 285.970456][ T27] xfs_log_force_seq+0x22b/0x630 [ 285.975417][ T27] ? __xfs_trans_commit+0xb93/0xfa0 [ 285.980649][ T27] __xfs_trans_commit+0xb93/0xfa0 [ 285.985699][ T27] ? xfs_trans_free_items+0x340/0x340 [ 285.991151][ T27] xfs_sync_sb_buf+0x126/0x170 [ 285.995945][ T27] ? xfs_update_secondary_sbs+0x720/0x720 [ 286.001648][ T27] ? do_raw_spin_unlock+0x175/0x230 [ 286.006876][ T27] xfs_file_ioctl+0x15ba/0x1c30 [ 286.011751][ T27] ? xfs_ioc_swapext+0x570/0x570 [ 286.016853][ T27] ? __kmem_cache_free+0xaf/0x2d0 [ 286.021902][ T27] ? tomoyo_path_number_perm+0x166/0x570 [ 286.027560][ T27] ? tomoyo_execute_permission+0x4a0/0x4a0 [ 286.033384][ T27] ? __sanitizer_cov_trace_switch+0x54/0x90 [ 286.039440][ T27] ? do_vfs_ioctl+0x132/0x1670 [ 286.044236][ T27] ? vfs_fileattr_set+0xc40/0xc40 [ 286.049343][ T27] ? find_held_lock+0x2d/0x110 [ 286.054121][ T27] ? do_one_initcall+0x373/0x540 [ 286.059081][ T27] ? lock_downgrade+0x690/0x690 [ 286.063949][ T27] ? bpf_lsm_file_ioctl+0x9/0x10 [ 286.068910][ T27] ? xfs_ioc_swapext+0x570/0x570 [ 286.073866][ T27] __x64_sys_ioctl+0x197/0x210 [ 286.078650][ T27] do_syscall_64+0x39/0xb0 [ 286.083109][ T27] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.089026][ T27] RIP: 0033:0x7f9ea16d92c9 [ 286.093449][ T27] RSP: 002b:00007ffdcbb25438 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 286.101880][ T27] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f9ea16d92c9 [ 286.109873][ T27] RDX: 0000000020000000 RSI: 0000000041009432 RDI: 0000000000000004 [ 286.117866][ T27] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 [ 286.125862][ T27] R10: 0000000000000001 R11: 0000000000000246 R12: 00007ffdcbb25460 [ 286.133817][ T27] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 286.141826][ T27] [ 286.144953][ T27] [ 286.144953][ T27] Showing all locks held in the system: [ 286.152699][ T27] 1 lock held by rcu_tasks_kthre/13: [ 286.158029][ T27] #0: ffffffff8c798430 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 [ 286.168534][ T27] 1 lock held by rcu_tasks_trace/14: [ 286.173827][ T27] #0: ffffffff8c798130 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x31/0xd80 [ 286.184872][ T27] 1 lock held by khungtaskd/27: [ 286.189756][ T27] #0: ffffffff8c799040 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x340 [ 286.199623][ T27] 2 locks held by kworker/1:1H/52: [ 286.204727][ T27] #0: ffff88802b26ad38 ((wq_completion)xfs-log/loop0){+.+.}-{0:0}, at: process_one_work+0x883/0x15e0 [ 286.215716][ T27] #1: ffffc90000bd7db0 ((work_completion)(&iclog->ic_end_io_work)){+.+.}-{0:0}, at: process_one_work+0x8b7/0x15e0 [ 286.227930][ T27] 2 locks held by getty/4749: [ 286.232587][ T27] #0: ffff88814aa99098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 [ 286.242441][ T27] #1: ffffc900015a02f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 [ 286.252579][ T27] 1 lock held by syz-executor200/4998: [ 286.258138][ T27] #0: ffff88807d666460 (sb_writers#9){.+.+}-{0:0}, at: xfs_file_ioctl+0x1550/0x1c30 [ 286.267719][ T27] [ 286.270044][ T27] ============================================= [ 286.270044][ T27] [ 286.278466][ T27] NMI backtrace for cpu 0 [ 286.282788][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0 [ 286.292574][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 286.302614][ T27] Call Trace: [ 286.305878][ T27] [ 286.308802][ T27] dump_stack_lvl+0xd9/0x150 [ 286.313395][ T27] nmi_cpu_backtrace+0x29c/0x350 [ 286.318451][ T27] ? lapic_can_unplug_cpu+0xa0/0xa0 [ 286.323661][ T27] nmi_trigger_cpumask_backtrace+0x2a4/0x300 [ 286.329652][ T27] watchdog+0xe16/0x1090 [ 286.333899][ T27] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 286.339877][ T27] kthread+0x344/0x440 [ 286.343942][ T27] ? kthread_complete_and_exit+0x40/0x40 [ 286.349571][ T27] ret_from_fork+0x1f/0x30 [ 286.353991][ T27] [ 286.357077][ T27] Sending NMI from CPU 0 to CPUs 1: [ 286.362294][ C1] NMI backtrace for cpu 1 [ 286.362302][ C1] CPU: 1 PID: 12 Comm: kworker/u4:1 Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0 [ 286.362316][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 286.362324][ C1] Workqueue: events_unbound toggle_allocation_gate [ 286.362343][ C1] RIP: 0010:__jump_label_update+0x168/0x410 [ 286.362359][ C1] Code: 84 66 01 00 00 e8 a8 26 d5 ff 48 3b 6c 24 08 0f 84 3e 01 00 00 e8 98 26 d5 ff 48 8d 53 10 48 89 d0 48 c1 e8 03 42 80 3c 28 00 <0f> 85 01 02 00 00 4c 8b 63 10 48 83 c5 10 4c 89 e0 48 83 e0 fc 48 [ 286.362370][ C1] RSP: 0018:ffffc90000117ba0 EFLAGS: 00000246 [ 286.362380][ C1] RAX: 1ffffffff1835687 RBX: ffffffff8c1ab428 RCX: 0000000000000000 [ 286.362388][ C1] RDX: ffffffff8c1ab438 RSI: ffffffff81af1c38 RDI: 0000000000000001 [ 286.362396][ C1] RBP: ffffffff8c1ab420 R08: 0000000000000001 R09: 0000000000000000 [ 286.362403][ C1] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 [ 286.362410][ C1] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 286.362420][ C1] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 286.362432][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.362441][ C1] CR2: 00005565e5299680 CR3: 000000000c571000 CR4: 0000000000350ee0 [ 286.362449][ C1] Call Trace: [ 286.362452][ C1] [ 286.362457][ C1] jump_label_update+0x32f/0x410 [ 286.362471][ C1] static_key_disable_cpuslocked+0x156/0x1b0 [ 286.362485][ C1] static_key_disable+0x1a/0x20 [ 286.362497][ C1] toggle_allocation_gate+0x143/0x230 [ 286.362511][ C1] ? wake_up_kfence_timer+0x30/0x30 [ 286.362527][ C1] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.362546][ C1] process_one_work+0x99a/0x15e0 [ 286.362567][ C1] ? pwq_dec_nr_in_flight+0x2a0/0x2a0 [ 286.362585][ C1] ? spin_bug+0x1c0/0x1c0 [ 286.362603][ C1] ? _raw_spin_lock_irq+0x45/0x50 [ 286.362621][ C1] worker_thread+0x67d/0x10c0 [ 286.362640][ C1] ? process_one_work+0x15e0/0x15e0 [ 286.362658][ C1] kthread+0x344/0x440 [ 286.362672][ C1] ? kthread_complete_and_exit+0x40/0x40 [ 286.362689][ C1] ret_from_fork+0x1f/0x30 [ 286.362710][ C1] [ 286.363292][ T27] Kernel panic - not syncing: hung_task: blocked tasks [ 286.579500][ T27] CPU: 0 PID: 27 Comm: khungtaskd Not tainted 6.4.0-rc2-syzkaller-00330-g0dd2a6fb1e34 #0 [ 286.589294][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 286.599338][ T27] Call Trace: [ 286.602608][ T27] [ 286.605534][ T27] dump_stack_lvl+0xd9/0x150 [ 286.610131][ T27] panic+0x686/0x730 [ 286.614024][ T27] ? panic_smp_self_stop+0xa0/0xa0 [ 286.619134][ T27] ? irq_work_claim+0x76/0x90 [ 286.623805][ T27] ? lapic_can_unplug_cpu+0xa0/0xa0 [ 286.628997][ T27] ? irq_work_queue+0x2d/0x80 [ 286.633666][ T27] ? watchdog+0xbe8/0x1090 [ 286.638080][ T27] watchdog+0xbf9/0x1090 [ 286.642322][ T27] ? proc_dohung_task_timeout_secs+0x80/0x80 [ 286.648296][ T27] kthread+0x344/0x440 [ 286.652359][ T27] ? kthread_complete_and_exit+0x40/0x40 [ 286.657988][ T27] ret_from_fork+0x1f/0x30 [ 286.662407][ T27] [ 286.666222][ T27] Kernel Offset: disabled [ 286.670541][ T27] Rebooting in 86400 seconds..