./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4246473860 <...> Warning: Permanently added '10.128.1.56' (ECDSA) to the list of known hosts. execve("./syz-executor4246473860", ["./syz-executor4246473860"], 0x7ffed80c3740 /* 10 vars */) = 0 brk(NULL) = 0x55555748a000 brk(0x55555748ac40) = 0x55555748ac40 arch_prctl(ARCH_SET_FS, 0x55555748a300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4246473860", 4096) = 28 brk(0x5555574abc40) = 0x5555574abc40 brk(0x5555574ac000) = 0x5555574ac000 mprotect(0x7f6115a6a000, 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=0x55555748a5d0) = 5071 ./strace-static-x86_64: Process 5071 attached [pid 5071] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5071] setpgid(0, 0) = 0 [pid 5071] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5071] write(3, "1000", 4) = 4 [pid 5071] close(3) = 0 [pid 5071] memfd_create("syzkaller", 0) = 3 [pid 5071] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f610d5af000 [pid 5071] 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"..., 262144) = 262144 [pid 5071] munmap(0x7f610d5af000, 262144) = 0 [pid 5071] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5071] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5071] close(3) = 0 [pid 5071] mkdir("./file0", 0777) = 0 [pid 5071] mount("/dev/loop0", "./file0", "ext4", MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS, ",errors=continue") = 0 [pid 5071] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 5071] chdir("./file0") = 0 [pid 5071] ioctl(4, LOOP_CLR_FD) = 0 [pid 5071] close(4) = 0 [ 54.569274][ T5071] loop0: detected capacity change from 0 to 512 [ 54.583476][ T5071] EXT4-fs: Warning: mounting with data=journal disables delayed allocation, dioread_nolock, O_DIRECT and fast_commit support! [ 54.596949][ T5071] EXT4-fs (loop0): encrypted files will use data=ordered instead of data journaling mode [pid 5071] openat(AT_FDCWD, "./bus", O_RDONLY|O_CREAT, 000) = 4 [pid 5071] openat(AT_FDCWD, "./bus", O_RDWR|O_SYNC|O_NOATIME|O_CLOEXEC) = 5 [pid 5071] write(5, "t", 1) = 1 [ 54.612625][ T5071] EXT4-fs error (device loop0): ext4_xattr_ibody_find:2197: inode #15: comm syz-executor424: corrupted in-inode xattr [ 54.626578][ T5071] EXT4-fs error (device loop0): ext4_orphan_get:1397: comm syz-executor424: couldn't read orphan inode 15 (err -117) [ 54.639591][ T5071] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 without journal. Quota mode: none. [ 54.661909][ T27] audit: type=1804 audit(1674296510.053:2): pid=5071 uid=0 auid=4294967295 ses=4294967295 subj=unconfined op=invalid_pcr cause=ToMToU comm="syz-executor424" name="/root/file0/bus" dev="loop0" ino=18 res=1 errno=0 [pid 5071] ioctl(5, _IOC(_IOC_WRITE, 0x58, 0x28, 0x30), 0x20000040 [pid 5070] kill(-5071, SIGKILL) = 0 [pid 5070] kill(5071, SIGKILL) = 0 [pid 5070] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5070] fstat(3, {st_mode=S_IFDIR|0755, st_size=0, ...}) = 0 [pid 5070] getdents64(3, 0x55555748b620 /* 2 entries */, 32768) = 48 [pid 5070] getdents64(3, 0x55555748b620 /* 0 entries */, 32768) = 0 [pid 5070] close(3) = 0 [ 76.384962][ T7] cfg80211: failed to load regulatory.db [ 286.303641][ T28] INFO: task syz-executor424:5071 blocked for more than 143 seconds. [ 286.311845][ T28] Not tainted 6.2.0-rc4-syzkaller-00350-gedc00350d205 #0 [ 286.319485][ T28] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.328215][ T28] task:syz-executor424 state:D stack:21080 pid:5071 ppid:5070 flags:0x00004004 [ 286.337495][ T28] Call Trace: [ 286.340810][ T28] [ 286.344140][ T28] __schedule+0x995/0xe20 [ 286.348635][ T28] ? release_firmware_map_entry+0x180/0x180 [ 286.354689][ T28] ? do_raw_spin_unlock+0x134/0x8a0 [ 286.360370][ T28] ? lockdep_hardirqs_on+0x8d/0x130 [ 286.365728][ T28] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 286.371702][ T28] ? _raw_spin_unlock+0x40/0x40 [ 286.376627][ T28] schedule+0xcb/0x190 [ 286.380712][ T28] io_schedule+0x83/0x100 [ 286.385103][ T28] bit_wait_io+0xe/0xc0 [ 286.389270][ T28] __wait_on_bit_lock+0xbb/0x1a0 [ 286.394255][ T28] ? bit_wait+0xc0/0xc0 [ 286.398435][ T28] out_of_line_wait_on_bit_lock+0x1c3/0x240 [ 286.404462][ T28] ? bit_wait+0xc0/0xc0 [ 286.408739][ T28] ? __wait_on_bit_lock+0x1a0/0x1a0 [ 286.414009][ T28] ? bit_waitqueue+0x30/0x30 [ 286.418643][ T28] ? do_raw_spin_unlock+0x134/0x8a0 [ 286.423938][ T28] __sync_dirty_buffer+0x107/0x330 [ 286.429243][ T28] __ext4_handle_dirty_metadata+0x29a/0x810 [ 286.435263][ T28] ? ext4_convert_inline_data_nolock+0x66d/0x820 [ 286.441676][ T28] ext4_convert_inline_data_nolock+0x6e5/0x820 [ 286.447940][ T28] ? ext4_add_dirent_to_inline+0x450/0x450 [ 286.453818][ T28] ? ext4_journal_check_start+0x178/0x240 [ 286.459573][ T28] ? ext4_convert_inline_data+0x31f/0x610 [ 286.465380][ T28] ? __ext4_journal_start_sb+0x19b/0x1f0 [ 286.471049][ T28] ext4_convert_inline_data+0x4c8/0x610 [ 286.476685][ T28] ? memalloc_retry_wait+0xb0/0xb0 [ 286.481854][ T28] ext4_fallocate+0x149/0x1ca0 [ 286.486712][ T28] ? rcu_read_lock_any_held+0xb1/0x130 [ 286.492260][ T28] ? memalloc_retry_wait+0xb0/0xb0 [ 286.497469][ T28] vfs_fallocate+0x515/0x670 [ 286.502174][ T28] do_vfs_ioctl+0x2163/0x2980 [ 286.506982][ T28] ? __x64_compat_sys_ioctl+0x80/0x80 [ 286.512373][ T28] ? __lock_acquire+0x1f60/0x1f60 [ 286.517463][ T28] ? slab_free_freelist_hook+0x12e/0x1a0 [ 286.523173][ T28] ? tomoyo_path_number_perm+0x5af/0x780 [ 286.528930][ T28] ? __kmem_cache_free+0x71/0x110 [ 286.534026][ T28] ? tomoyo_path_number_perm+0x629/0x780 [ 286.539763][ T28] ? tomoyo_check_path_acl+0x1c0/0x1c0 [ 286.545307][ T28] ? _raw_spin_lock_irqsave+0x100/0x100 [ 286.550906][ T28] ? do_notify_parent+0xe00/0xe00 [ 286.556059][ T28] ? bpf_lsm_file_ioctl+0x5/0x10 [ 286.561062][ T28] ? security_file_ioctl+0x9d/0xb0 [ 286.566264][ T28] __se_sys_ioctl+0x83/0x170 [ 286.570875][ T28] do_syscall_64+0x3d/0xb0 [ 286.575379][ T28] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.581467][ T28] RIP: 0033:0x7f61159fc2c9 [ 286.585957][ T28] RSP: 002b:00007ffd6cf45868 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 [ 286.594444][ T28] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f61159fc2c9 [ 286.602439][ T28] RDX: 0000000020000040 RSI: 0000000040305828 RDI: 0000000000000005 [ 286.610498][ T28] RBP: 0000000000000000 R08: 00007f6115a6aec0 R09: 00007f6115a6aec0 [ 286.618527][ T28] R10: 00007f6115a6aec0 R11: 0000000000000246 R12: 00007ffd6cf45890 [ 286.626563][ T28] R13: 0000000000000000 R14: 431bde82d7b634db R15: 0000000000000000 [ 286.634594][ T28] [ 286.637612][ T28] [ 286.637612][ T28] Showing all locks held in the system: [ 286.645363][ T28] 1 lock held by rcu_tasks_kthre/12: [ 286.650651][ T28] #0: ffffffff8d326fd0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 286.661196][ T28] 1 lock held by rcu_tasks_trace/13: [ 286.666572][ T28] #0: ffffffff8d3277d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 [ 286.677712][ T28] 1 lock held by khungtaskd/28: [ 286.682571][ T28] #0: ffffffff8d326e00 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 286.691997][ T28] 2 locks held by getty/4747: [ 286.696738][ T28] #0: ffff88802c9bb098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 [ 286.706611][ T28] #1: ffffc900015902f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 [ 286.716790][ T28] 3 locks held by syz-executor424/5071: [ 286.722343][ T28] #0: ffff88802b95e460 (sb_writers#4){.+.+}-{0:0}, at: vfs_fallocate+0x489/0x670 [ 286.732008][ T28] #1: ffff888076912218 (&sb->s_type->i_mutex_key#8){++++}-{3:3}, at: ext4_fallocate+0x141/0x1ca0 [ 286.742754][ T28] #2: ffff888076911ee0 (&ei->xattr_sem){++++}-{3:3}, at: ext4_convert_inline_data+0x3a4/0x610 [ 286.753218][ T28] [ 286.755592][ T28] ============================================= [ 286.755592][ T28] [ 286.764034][ T28] NMI backtrace for cpu 1 [ 286.768361][ T28] CPU: 1 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc4-syzkaller-00350-gedc00350d205 #0 [ 286.778169][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 286.788212][ T28] Call Trace: [ 286.791482][ T28] [ 286.794401][ T28] dump_stack_lvl+0x1b1/0x290 [ 286.799073][ T28] ? nf_tcp_handle_invalid+0x630/0x630 [ 286.804545][ T28] ? panic+0x710/0x710 [ 286.808629][ T28] ? nmi_cpu_backtrace+0x205/0x4f0 [ 286.813780][ T28] nmi_cpu_backtrace+0x46f/0x4f0 [ 286.818912][ T28] ? vprintk_emit+0x109/0x1e0 [ 286.823884][ T28] ? nmi_trigger_cpumask_backtrace+0x420/0x420 [ 286.830067][ T28] ? _printk+0xc0/0x100 [ 286.834232][ T28] ? panic+0x710/0x710 [ 286.838320][ T28] ? __wake_up_klogd+0xcd/0x100 [ 286.843291][ T28] ? panic+0x710/0x710 [ 286.847374][ T28] ? nmi_trigger_cpumask_backtrace+0xc9/0x420 [ 286.853458][ T28] nmi_trigger_cpumask_backtrace+0x1ba/0x420 [ 286.859461][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 286.865593][ T28] watchdog+0xcd5/0xd20 [ 286.869782][ T28] kthread+0x266/0x300 [ 286.873881][ T28] ? hungtask_pm_notify+0x50/0x50 [ 286.878908][ T28] ? kthread_blkcg+0xd0/0xd0 [ 286.883502][ T28] ret_from_fork+0x1f/0x30 [ 286.887953][ T28] [ 286.891186][ T28] Sending NMI from CPU 1 to CPUs 0: [ 286.896478][ C0] NMI backtrace for cpu 0 [ 286.896487][ C0] CPU: 0 PID: 56 Comm: kworker/u4:4 Not tainted 6.2.0-rc4-syzkaller-00350-gedc00350d205 #0 [ 286.896501][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 286.896509][ C0] Workqueue: events_unbound toggle_allocation_gate [ 286.896530][ C0] RIP: 0010:x2apic_send_IPI+0x76/0xd0 [ 286.896547][ C0] Code: d8 48 c1 e8 03 42 8a 04 38 84 c0 75 26 0f b7 13 0f ae f0 0f ae e8 41 83 fe 02 b8 00 04 00 00 41 0f 45 c6 b9 30 08 00 00 0f 30 <66> 90 5b 41 5e 41 5f 5d c3 89 d9 80 e1 07 fe c1 38 c1 7c cf 48 89 [ 286.896558][ C0] RSP: 0018:ffffc90001577718 EFLAGS: 00000206 [ 286.896567][ C0] RAX: 00000000000000fb RBX: ffff8880b99219a0 RCX: 0000000000000830 [ 286.896576][ C0] RDX: 0000000000000001 RSI: 00000000000000fb RDI: 0000000000000001 [ 286.896584][ C0] RBP: ffffffff8ce29828 R08: ffffffff8180a3fa R09: ffffed1017307653 [ 286.896593][ C0] R10: ffffed1017307653 R11: 1ffff11017307652 R12: ffff888012a61d40 [ 286.896608][ C0] R13: dffffc0000000000 R14: 00000000000000fb R15: dffffc0000000000 [ 286.896617][ C0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 286.896627][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.896636][ C0] CR2: 0000556d8e4d8d90 CR3: 000000000d08e000 CR4: 00000000003506f0 [ 286.896648][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 286.896655][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 286.896663][ C0] Call Trace: [ 286.896667][ C0] [ 286.896673][ C0] send_call_function_single_ipi+0x17f/0x1e0 [ 286.896728][ C0] ? ttwu_do_activate+0x2b0/0x2b0 [ 286.896739][ C0] ? lockdep_hardirqs_on_prepare+0x428/0x790 [ 286.896754][ C0] ? __bitmap_and+0x2f0/0x310 [ 286.896777][ C0] ? _find_next_and_bit+0x16f/0x190 [ 286.896813][ C0] ? _find_next_bit+0x134/0x140 [ 286.896827][ C0] smp_call_function_many_cond+0xbb2/0x13d0 [ 286.896879][ C0] ? text_poke_sync+0x20/0x20 [ 286.896908][ C0] ? smp_call_function_many+0x30/0x30 [ 286.896924][ C0] ? perf_event_text_poke+0x233/0x310 [ 286.896955][ C0] ? perf_event_bpf_output+0x220/0x220 [ 286.896974][ C0] ? trace_contention_end+0x72/0x1d0 [ 286.896988][ C0] ? text_poke_sync+0x20/0x20 [ 286.897003][ C0] on_each_cpu_cond_mask+0x3b/0x80 [ 286.897019][ C0] text_poke_bp_batch+0x76c/0x850 [ 286.897033][ C0] ? arch_jump_label_transform_apply+0xe/0x20 [ 286.897058][ C0] ? __kmem_cache_alloc_bulk+0xb5/0x3e0 [ 286.897073][ C0] ? text_poke_loc_init+0x500/0x500 [ 286.897089][ C0] ? __jump_label_update+0x38e/0x3b0 [ 286.897130][ C0] text_poke_finish+0x16/0x30 [ 286.897143][ C0] arch_jump_label_transform_apply+0x13/0x20 [ 286.897162][ C0] static_key_disable_cpuslocked+0xc8/0x1b0 [ 286.897177][ C0] static_key_disable+0x16/0x20 [ 286.897189][ C0] toggle_allocation_gate+0x1a8/0x240 [ 286.897211][ C0] ? virt_to_slab+0x2c0/0x2c0 [ 286.897223][ C0] ? rcu_read_lock_sched_held+0x87/0x110 [ 286.897238][ C0] ? __bpf_trace_rcu_stall_warning+0x10/0x10 [ 286.897253][ C0] ? _raw_spin_unlock_irqrestore+0xc1/0x120 [ 286.897272][ C0] ? do_raw_spin_unlock+0x134/0x8a0 [ 286.897293][ C0] process_one_work+0x877/0xdb0 [ 286.897316][ C0] ? worker_detach_from_pool+0x260/0x260 [ 286.897335][ C0] ? _raw_spin_lock_irq+0xba/0xf0 [ 286.897352][ C0] ? _raw_spin_lock_irqsave+0x100/0x100 [ 286.897373][ C0] worker_thread+0xb14/0x1330 [ 286.897402][ C0] kthread+0x266/0x300 [ 286.897415][ C0] ? rcu_lock_release+0x20/0x20 [ 286.897430][ C0] ? kthread_blkcg+0xd0/0xd0 [ 286.897444][ C0] ret_from_fork+0x1f/0x30 [ 286.897468][ C0] [ 286.897532][ T28] Kernel panic - not syncing: hung_task: blocked tasks [ 287.253116][ T28] CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.2.0-rc4-syzkaller-00350-gedc00350d205 #0 [ 287.262929][ T28] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 [ 287.272991][ T28] Call Trace: [ 287.276263][ T28] [ 287.279182][ T28] dump_stack_lvl+0x1b1/0x290 [ 287.283873][ T28] ? nf_tcp_handle_invalid+0x630/0x630 [ 287.289322][ T28] ? panic+0x710/0x710 [ 287.293401][ T28] ? vscnprintf+0x59/0x80 [ 287.297734][ T28] panic+0x2d6/0x710 [ 287.301632][ T28] ? schedule_preempt_disabled+0x20/0x20 [ 287.307297][ T28] ? nmi_trigger_cpumask_backtrace+0x2d0/0x420 [ 287.313440][ T28] ? memcpy_page_flushcache+0x100/0x100 [ 287.319125][ T28] ? nmi_trigger_cpumask_backtrace+0x2d0/0x420 [ 287.325322][ T28] ? nmi_trigger_cpumask_backtrace+0x34e/0x420 [ 287.331500][ T28] ? nmi_trigger_cpumask_backtrace+0x353/0x420 [ 287.337667][ T28] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 287.343839][ T28] watchdog+0xd15/0xd20 [ 287.348149][ T28] kthread+0x266/0x300 [ 287.352206][ T28] ? hungtask_pm_notify+0x50/0x50 [ 287.357218][ T28] ? kthread_blkcg+0xd0/0xd0 [ 287.361796][ T28] ret_from_fork+0x1f/0x30 [ 287.366229][ T28] [ 287.369521][ T28] Kernel Offset: disabled [ 287.373881][ T28] Rebooting in 86400 seconds..