./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4148766435 <...> Warning: Permanently added '10.128.1.177' (ECDSA) to the list of known hosts. execve("./syz-executor4148766435", ["./syz-executor4148766435"], 0x7ffe99bb8c30 /* 10 vars */) = 0 brk(NULL) = 0x5555563fc000 brk(0x5555563fcc40) = 0x5555563fcc40 arch_prctl(ARCH_SET_FS, 0x5555563fc300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4148766435", 4096) = 28 brk(0x55555641dc40) = 0x55555641dc40 brk(0x55555641e000) = 0x55555641e000 mprotect(0x7f3f898c5000, 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 getpid() = 4994 mkdir("./syzkaller.dHtWnQ", 0700) = 0 chmod("./syzkaller.dHtWnQ", 0777) = 0 chdir("./syzkaller.dHtWnQ") = 0 mkdir("./0", 0777) = 0 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=0x5555563fc5d0) = 4996 ./strace-static-x86_64: Process 4996 attached [pid 4996] chdir("./0") = 0 [pid 4996] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 4996] setpgid(0, 0) = 0 [pid 4996] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 4996] write(3, "1000", 4) = 4 [pid 4996] close(3) = 0 [pid 4996] symlink("/dev/binderfs", "./binderfs") = 0 [pid 4996] memfd_create("syzkaller", 0) = 3 [pid 4996] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f3f813ff000 syzkaller login: [ 66.145879][ T4996] memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=4996 'syz-executor414' [pid 4996] 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\x80\x40\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\x01\x00"..., 33554432) = 33554432 [pid 4996] munmap(0x7f3f813ff000, 33554432) = 0 [pid 4996] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 4996] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 4996] close(3) = 0 [pid 4996] mkdir("./file0", 0777) = 0 [ 66.518410][ T4996] loop0: detected capacity change from 0 to 65536 [ 66.537088][ T4996] XFS (loop0): Deprecated V4 format (crc=0) will not be supported after September 2030. [ 66.548363][ T4996] XFS (loop0): Mounting V4 Filesystem 5e6273b8-2167-42bb-911b-418aa14a1261 [ 66.558570][ T4996] XFS (loop0): Log size 256 blocks too small, minimum size is 2880 blocks [ 66.567226][ T4996] XFS (loop0): Log size out of supported range. [ 66.573525][ T4996] XFS (loop0): Continuing onwards, but if log hangs are experienced then please report this message in the bug report. [pid 4996] mount("/dev/loop0", "./file0", "xfs", MS_RDONLY|MS_NOSUID, ",nouuid") = 0 [pid 4996] openat(AT_FDCWD, "./file0", O_RDONLY|O_DIRECTORY) = 3 [pid 4996] chdir("./file0") = 0 [pid 4996] ioctl(4, LOOP_CLR_FD) = 0 [pid 4996] close(4) = 0 [pid 4996] exit_group(0) = ? [pid 4996] +++ exited with 0 +++ --- SIGCHLD {si_signo=SIGCHLD, si_code=CLD_EXITED, si_pid=4996, si_uid=0, si_status=0, si_utime=5 /* 0.05 s */, si_stime=43 /* 0.43 s */} --- restart_syscall(<... resuming interrupted clone ...>) = 0 umount2("./0", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "./0", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 fstat(3, {st_mode=S_IFDIR|0700, st_size=4096, ...}) = 0 getdents64(3, 0x5555563fd620 /* 4 entries */, 32768) = 112 umount2("./0/binderfs", MNT_DETACH|UMOUNT_NOFOLLOW) = -1 EINVAL (Invalid argument) lstat("./0/binderfs", {st_mode=S_IFLNK|0777, st_size=13, ...}) = 0 unlink("./0/binderfs") = 0 [ 66.618936][ T4996] XFS (loop0): Starting recovery (logdev: internal) [ 66.631625][ T4996] XFS (loop0): Ending recovery (logdev: internal) [ 66.680329][ T4994] XFS (loop0): Unmounting Filesystem 5e6273b8-2167-42bb-911b-418aa14a1261 [ 81.705890][ T2494] cfg80211: failed to load regulatory.db [ 286.504367][ T29] INFO: task syz-executor414:4994 blocked for more than 143 seconds. [ 286.512691][ T29] Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 [ 286.520322][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.529130][ T29] task:syz-executor414 state:D stack:22048 pid:4994 ppid:4991 flags:0x00004002 [ 286.538654][ T29] Call Trace: [ 286.541971][ T29] [ 286.545118][ T29] __schedule+0x187b/0x4900 [ 286.549827][ T29] ? release_firmware_map_entry+0x190/0x190 [ 286.555987][ T29] ? __lock_acquire+0x2070/0x2070 [ 286.561123][ T29] ? xlog_space_left+0x152/0x2b0 [ 286.566403][ T29] ? do_raw_spin_unlock+0x13b/0x8b0 [ 286.571650][ T29] ? xlog_grant_push_threshold+0x1a7/0x1f0 [ 286.577661][ T29] schedule+0xc3/0x180 [ 286.581770][ T29] xlog_grant_head_wait+0x387/0x910 [ 286.587327][ T29] xlog_grant_head_check+0x299/0x480 [ 286.592698][ T29] ? xlog_grant_push_ail+0xd0/0xd0 [ 286.598009][ T29] ? xlog_grant_push_threshold+0x1a7/0x1f0 [ 286.603849][ T29] xfs_log_reserve+0x3c4/0xb10 [ 286.608796][ T29] ? xlog_grant_head_check+0x480/0x480 [ 286.614439][ T29] ? __kasan_slab_alloc+0x66/0x70 [ 286.619537][ T29] ? slab_post_alloc_hook+0x83/0x3a0 [ 286.624997][ T29] xfs_trans_reserve+0x239/0x6a0 [ 286.629974][ T29] xfs_trans_alloc+0x420/0x810 [ 286.635138][ T29] xfs_sync_sb+0xb3/0x190 [ 286.639638][ T29] ? xfs_log_sb+0x1b0/0x1b0 [ 286.644240][ T29] xfs_log_quiesce+0x38f/0x680 [ 286.649060][ T29] xfs_log_clean+0xa4/0xc10 [ 286.653595][ T29] ? mark_lock+0x9a/0x340 [ 286.657997][ T29] ? xfs_log_quiesce+0x680/0x680 [ 286.662962][ T29] ? lockdep_hardirqs_on_prepare+0x43c/0x7a0 [ 286.669002][ T29] ? print_irqtrace_events+0x220/0x220 [ 286.674544][ T29] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 286.680468][ T29] ? lockdep_hardirqs_on+0x98/0x140 [ 286.685821][ T29] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.691756][ T29] ? _raw_spin_unlock+0x40/0x40 [ 286.696684][ T29] xfs_log_unmount+0x2c/0x1c0 [ 286.701418][ T29] xfs_unmountfs+0x1d6/0x280 [ 286.706073][ T29] ? xfs_uuid_unmount+0x120/0x120 [ 286.711142][ T29] ? __kmem_cache_free+0x264/0x3c0 [ 286.716318][ T29] ? xfs_fs_put_super+0x6c/0x2d0 [ 286.721286][ T29] xfs_fs_put_super+0x74/0x2d0 [ 286.726108][ T29] ? generic_shutdown_super+0x12f/0x340 [ 286.731713][ T29] ? xfs_fs_drop_inode+0xe0/0xe0 [ 286.736946][ T29] generic_shutdown_super+0x134/0x340 [ 286.742379][ T29] kill_block_super+0x84/0xf0 [ 286.747331][ T29] deactivate_locked_super+0xa4/0x110 [ 286.752736][ T29] cleanup_mnt+0x426/0x4c0 [ 286.757244][ T29] ? _raw_spin_unlock_irq+0x23/0x50 [ 286.762524][ T29] task_work_run+0x24a/0x300 [ 286.767237][ T29] ? dput+0x3a1/0x420 [ 286.771249][ T29] ? task_work_cancel+0x2b0/0x2b0 [ 286.776347][ T29] ? __x64_sys_umount+0x126/0x170 [ 286.781435][ T29] ptrace_notify+0x2cd/0x380 [ 286.786086][ T29] ? do_notify_parent+0xf50/0xf50 [ 286.791154][ T29] ? user_path_at_empty+0x12f/0x180 [ 286.796449][ T29] ? __x64_sys_umount+0x126/0x170 [ 286.801512][ T29] ? path_umount+0xea0/0xea0 [ 286.806169][ T29] ? syscall_enter_from_user_mode+0x32/0x230 [ 286.812188][ T29] syscall_exit_to_user_mode+0x157/0x280 [ 286.817904][ T29] do_syscall_64+0x4d/0xc0 [ 286.822346][ T29] entry_SYSCALL_64_after_hwframe+0x63/0xcd [ 286.828378][ T29] RIP: 0033:0x7f3f8984dc47 [ 286.832827][ T29] RSP: 002b:00007fffeccfb0d8 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 286.841307][ T29] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f3f8984dc47 [ 286.849330][ T29] RDX: 00007fffeccfb199 RSI: 000000000000000a RDI: 00007fffeccfb190 [ 286.857352][ T29] RBP: 00007fffeccfb190 R08: 00000000ffffffff R09: 00007fffeccfaf70 [ 286.865374][ T29] R10: 00005555563fd653 R11: 0000000000000206 R12: 00007fffeccfc1f0 [ 286.873438][ T29] R13: 00005555563fd5f0 R14: 00007fffeccfb100 R15: 0000000000000001 [ 286.881492][ T29] [ 286.884597][ T29] [ 286.884597][ T29] Showing all locks held in the system: [ 286.892331][ T29] 1 lock held by rcu_tasks_kthre/13: [ 286.897682][ T29] #0: ffffffff8cf276f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 [ 286.908228][ T29] 1 lock held by rcu_tasks_trace/14: [ 286.913516][ T29] #0: ffffffff8cf27ab0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x29/0xd20 [ 286.924641][ T29] 1 lock held by khungtaskd/29: [ 286.929602][ T29] #0: ffffffff8cf27520 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30 [ 286.939033][ T29] 1 lock held by klogd/4436: [ 286.943638][ T29] #0: ffff8880b983c1d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 286.953632][ T29] 2 locks held by getty/4747: [ 286.958364][ T29] #0: ffff88802cc41098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.968263][ T29] #1: ffffc900015802f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6ab/0x1db0 [ 286.978453][ T29] 1 lock held by syz-executor414/4994: [ 286.983918][ T29] #0: ffff8880775820e0 (&type->s_umount_key#43){+.+.}-{3:3}, at: deactivate_super+0xad/0xf0 [ 286.994194][ T29] [ 286.996553][ T29] ============================================= [ 286.996553][ T29] [ 287.005078][ T29] NMI backtrace for cpu 1 [ 287.009422][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 [ 287.019238][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 287.029307][ T29] Call Trace: [ 287.032590][ T29] [ 287.035526][ T29] dump_stack_lvl+0x1e7/0x2d0 [ 287.040218][ T29] ? nf_tcp_handle_invalid+0x650/0x650 [ 287.045683][ T29] ? panic+0x770/0x770 [ 287.049795][ T29] nmi_cpu_backtrace+0x498/0x4d0 [ 287.054747][ T29] ? vprintk_emit+0x10d/0x1f0 [ 287.059441][ T29] ? nmi_trigger_cpumask_backtrace+0x300/0x300 [ 287.065609][ T29] ? _printk+0xd5/0x120 [ 287.069773][ T29] ? panic+0x770/0x770 [ 287.073855][ T29] ? __wake_up_klogd+0xcc/0x100 [ 287.078721][ T29] ? panic+0x770/0x770 [ 287.082800][ T29] ? wq_watchdog_touch+0x72/0x110 [ 287.087841][ T29] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 287.093938][ T29] nmi_trigger_cpumask_backtrace+0x187/0x300 [ 287.099931][ T29] watchdog+0xec2/0xf00 [ 287.104126][ T29] kthread+0x2b8/0x350 [ 287.108207][ T29] ? hungtask_pm_notify+0x90/0x90 [ 287.113244][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.117847][ T29] ret_from_fork+0x1f/0x30 [ 287.122303][ T29] [ 287.125436][ T29] Sending NMI from CPU 1 to CPUs 0: [ 287.130662][ C0] NMI backtrace for cpu 0 [ 287.130673][ C0] CPU: 0 PID: 12 Comm: kworker/u4:1 Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 [ 287.130690][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 287.130701][ C0] Workqueue: events_unbound toggle_allocation_gate [ 287.130723][ C0] RIP: 0010:x2apic_send_IPI+0x7b/0xd0 [ 287.130747][ C0] Code: 48 c1 e8 03 42 0f b6 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 [ 287.130760][ C0] RSP: 0018:ffffc90000117798 EFLAGS: 00000206 [ 287.130773][ C0] RAX: 00000000000000fb RBX: ffff8880b99219c0 RCX: 0000000000000830 [ 287.130784][ C0] RDX: 0000000000000001 RSI: 00000000000000fb RDI: 0000000000000001 [ 287.130794][ C0] RBP: ffffffff8ca458e8 R08: ffffffff81803b9d R09: fffffbfff1cabbc6 [ 287.130806][ C0] R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000002 [ 287.130816][ C0] R13: 0000000000000001 R14: 00000000000000fb R15: dffffc0000000000 [ 287.130827][ C0] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 287.130840][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.130851][ C0] CR2: 00005611702ea600 CR3: 000000000cd30000 CR4: 00000000003506f0 [ 287.130865][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.130880][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.130890][ C0] Call Trace: [ 287.130896][ C0] [ 287.130902][ C0] ? nmi_cpu_backtrace+0x3be/0x4d0 [ 287.130921][ C0] ? read_lock_is_recursive+0x20/0x20 [ 287.130946][ C0] ? nmi_trigger_cpumask_backtrace+0x300/0x300 [ 287.130966][ C0] ? unknown_nmi_error+0xc0/0xc0 [ 287.130990][ C0] ? nmi_cpu_backtrace_handler+0xc/0x10 [ 287.131007][ C0] ? nmi_handle+0xf7/0x370 [ 287.131025][ C0] ? x2apic_send_IPI+0x7b/0xd0 [ 287.131044][ C0] ? default_do_nmi+0x62/0x150 [ 287.131085][ C0] ? exc_nmi+0x11e/0x1f0 [ 287.131103][ C0] ? end_repeat_nmi+0x16/0x31 [ 287.131129][ C0] ? trace_ipi_send_cpu+0x7d/0x1f0 [ 287.131153][ C0] ? x2apic_send_IPI+0x7b/0xd0 [ 287.131174][ C0] ? x2apic_send_IPI+0x7b/0xd0 [ 287.131196][ C0] ? x2apic_send_IPI+0x7b/0xd0 [ 287.131217][ C0] [ 287.131221][ C0] [ 287.131227][ C0] smp_call_function_many_cond+0x11af/0x1f60 [ 287.131255][ C0] ? __text_poke+0x81e/0x9b0 [ 287.131277][ C0] ? text_poke_sync+0x20/0x20 [ 287.131305][ C0] ? text_poke+0x90/0x90 [ 287.131326][ C0] ? kmem_cache_alloc_bulk+0xe3/0x4b0 [ 287.131345][ C0] ? smp_call_function_many+0x40/0x40 [ 287.131367][ C0] ? perf_event_bpf_output+0x2f0/0x2f0 [ 287.131412][ C0] ? text_poke_sync+0x20/0x20 [ 287.131436][ C0] on_each_cpu_cond_mask+0x3f/0x80 [ 287.131459][ C0] text_poke_bp_batch+0x5fd/0x950 [ 287.131487][ C0] ? kmem_cache_alloc_bulk+0xe4/0x4b0 [ 287.131503][ C0] ? text_poke_loc_init+0x680/0x680 [ 287.131528][ C0] ? arch_jump_label_transform_queue+0x81/0xd0 [ 287.131554][ C0] text_poke_finish+0x1a/0x30 [ 287.131575][ C0] arch_jump_label_transform_apply+0x17/0x30 [ 287.131595][ C0] static_key_disable_cpuslocked+0xce/0x1b0 [ 287.131620][ C0] static_key_disable+0x1a/0x20 [ 287.131640][ C0] toggle_allocation_gate+0x1b8/0x250 [ 287.131658][ C0] ? show_object+0xa0/0xa0 [ 287.131673][ C0] ? print_irqtrace_events+0x220/0x220 [ 287.131694][ C0] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 287.131721][ C0] process_one_work+0x8a0/0x10e0 [ 287.131755][ C0] ? worker_detach_from_pool+0x290/0x290 [ 287.131782][ C0] ? _raw_spin_lock_irqsave+0x120/0x120 [ 287.131800][ C0] ? kthread_data+0x52/0xc0 [ 287.131822][ C0] ? wq_worker_running+0x9b/0x1a0 [ 287.131844][ C0] worker_thread+0xa63/0x1210 [ 287.131887][ C0] kthread+0x2b8/0x350 [ 287.131907][ C0] ? pr_cont_work+0x5e0/0x5e0 [ 287.131930][ C0] ? kthread_blkcg+0xd0/0xd0 [ 287.131951][ C0] ret_from_fork+0x1f/0x30 [ 287.131981][ C0] [ 287.131987][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.324 msecs [ 287.132668][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 287.531926][ T29] CPU: 1 PID: 29 Comm: khungtaskd Not tainted 6.4.0-rc6-syzkaller-00195-g40f71e7cd3c6 #0 [ 287.541737][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 [ 287.552060][ T29] Call Trace: [ 287.555349][ T29] [ 287.558286][ T29] dump_stack_lvl+0x1e7/0x2d0 [ 287.562986][ T29] ? nf_tcp_handle_invalid+0x650/0x650 [ 287.568452][ T29] ? panic+0x770/0x770 [ 287.572539][ T29] ? vscnprintf+0x5d/0x80 [ 287.576888][ T29] panic+0x30f/0x770 [ 287.580797][ T29] ? nmi_trigger_cpumask_backtrace+0x233/0x300 [ 287.586968][ T29] ? __memcpy_flushcache+0x2b0/0x2b0 [ 287.592266][ T29] ? arch_trigger_cpumask_backtrace+0x10/0x10 [ 287.598349][ T29] ? nmi_trigger_cpumask_backtrace+0x233/0x300 [ 287.604533][ T29] ? nmi_trigger_cpumask_backtrace+0x2b4/0x300 [ 287.610698][ T29] ? nmi_trigger_cpumask_backtrace+0x2b9/0x300 [ 287.616873][ T29] watchdog+0xf00/0xf00 [ 287.621052][ T29] kthread+0x2b8/0x350 [ 287.625137][ T29] ? hungtask_pm_notify+0x90/0x90 [ 287.630187][ T29] ? kthread_blkcg+0xd0/0xd0 [ 287.634793][ T29] ret_from_fork+0x1f/0x30 [ 287.639236][ T29] [ 287.642512][ T29] Kernel Offset: disabled [ 287.646863][ T29] Rebooting in 86400 seconds..