./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1162294576 <...> Warning: Permanently added '10.128.0.188' (ED25519) to the list of known hosts. execve("./syz-executor1162294576", ["./syz-executor1162294576"], 0x7ffe98b24790 /* 10 vars */) = 0 brk(NULL) = 0x5555898ac000 brk(0x5555898acd00) = 0x5555898acd00 arch_prctl(ARCH_SET_FS, 0x5555898ac380) = 0 set_tid_address(0x5555898ac650) = 5835 set_robust_list(0x5555898ac660, 24) = 0 rseq(0x5555898acca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor1162294576", 4096) = 28 getrandom("\xbd\x7e\xf5\x2a\x2c\x08\xe5\x7c", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x5555898acd00 brk(0x5555898cdd00) = 0x5555898cdd00 brk(0x5555898ce000) = 0x5555898ce000 mprotect(0x7f70a667a000, 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./strace-static-x86_64: Process 5836 attached [pid 5836] set_robust_list(0x5555898ac660, 24 [pid 5835] <... clone resumed>, child_tidptr=0x5555898ac650) = 5836 [pid 5836] <... set_robust_list resumed>) = 0 [pid 5836] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5836] setpgid(0, 0) = 0 [pid 5836] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5836] write(3, "1000", 4) = 4 [pid 5836] close(3) = 0 executing program [pid 5836] write(1, "executing program\n", 18) = 18 [pid 5836] memfd_create("syzkaller", 0) = 3 [pid 5836] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7f709e000000 [pid 5836] 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"..., 16777216) = 16777216 [pid 5836] munmap(0x7f709e000000, 138412032) = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5836] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5836] close(3) = 0 [pid 5836] close(4) = 0 [pid 5836] mkdir("./bus", 0777) = 0 [pid 5836] mount("/dev/loop0", "./bus", "jfs", 0, "") = 0 [pid 5836] openat(AT_FDCWD, "./bus", O_RDONLY|O_DIRECTORY) = 3 [ 74.634264][ T5836] loop0: detected capacity change from 0 to 32768 [pid 5836] chdir("./bus") = 0 [pid 5836] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5836] rename("./file0", "./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" [pid 5835] kill(-5836, SIGKILL) = 0 [pid 5835] kill(5836, SIGKILL) = 0 [pid 5835] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5835] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5835] getdents64(3, 0x5555898ad6f0 /* 2 entries */, 32768) = 48 [pid 5835] getdents64(3, 0x5555898ad6f0 /* 0 entries */, 32768) = 0 [pid 5835] close(3) = 0 [ 86.958807][ T970] cfg80211: failed to load regulatory.db [ 286.639407][ T30] INFO: task kworker/u8:8:2923 blocked for more than 143 seconds. [ 286.647496][ T30] Not tainted 6.12.0-rc7-syzkaller-00212-g4a5df3796467 #0 [ 286.655159][ T30] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.665837][ T30] task:kworker/u8:8 state:D stack:22800 pid:2923 tgid:2923 ppid:2 flags:0x00004000 [ 286.676368][ T30] Workqueue: writeback wb_workfn (flush-7:0) [ 286.683293][ T30] Call Trace: [ 286.686842][ T30] [ 286.689811][ T30] __schedule+0x17fa/0x4bd0 [ 286.694387][ T30] ? __pfx___schedule+0x10/0x10 [ 286.699634][ T30] ? __blk_flush_plug+0x449/0x500 [ 286.704730][ T30] ? __pfx_lock_release+0x10/0x10 [ 286.710169][ T30] ? __mutex_trylock_common+0x92/0x2e0 [ 286.715679][ T30] ? kthread_data+0x52/0xd0 [ 286.720490][ T30] ? schedule+0x90/0x320 [ 286.724780][ T30] ? wq_worker_sleeping+0x66/0x240 [ 286.730219][ T30] ? schedule+0x90/0x320 [ 286.734516][ T30] schedule+0x14b/0x320 [ 286.738990][ T30] schedule_preempt_disabled+0x13/0x30 [ 286.744493][ T30] __mutex_lock+0x6a7/0xd70 [ 286.749325][ T30] ? __mutex_lock+0x52a/0xd70 [ 286.754051][ T30] ? jfs_commit_inode+0x24a/0x590 [ 286.759443][ T30] ? __pfx___mutex_lock+0x10/0x10 [ 286.764542][ T30] jfs_commit_inode+0x24a/0x590 [ 286.770243][ T30] ? __pfx_jfs_commit_inode+0x10/0x10 [ 286.775707][ T30] ? do_raw_spin_unlock+0x13c/0x8b0 [ 286.781265][ T30] jfs_write_inode+0x143/0x220 [ 286.786086][ T30] __writeback_single_inode+0x711/0x10d0 [ 286.792054][ T30] writeback_sb_inodes+0x80c/0x1370 [ 286.797496][ T30] ? mark_lock+0x2ae/0x360 [ 286.801992][ T30] ? __pfx_writeback_sb_inodes+0x10/0x10 [ 286.807975][ T30] ? __pfx___up_read+0x10/0x10 [ 286.812789][ T30] ? do_raw_spin_lock+0x14f/0x370 [ 286.818134][ T30] __writeback_inodes_wb+0x11b/0x260 [ 286.823476][ T30] wb_writeback+0x42f/0xbd0 [ 286.828320][ T30] ? queue_io+0x321/0x5a0 [ 286.832784][ T30] ? __pfx_wb_writeback+0x10/0x10 [ 286.838104][ T30] wb_workfn+0xc58/0x1090 [ 286.842509][ T30] ? __pfx_wb_workfn+0x10/0x10 [ 286.847609][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.853645][ T30] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 286.860414][ T30] ? process_scheduled_works+0x976/0x1850 [ 286.866186][ T30] process_scheduled_works+0xa63/0x1850 [ 286.872134][ T30] ? __pfx_process_scheduled_works+0x10/0x10 [ 286.878917][ T30] ? assign_work+0x364/0x3d0 [ 286.883577][ T30] worker_thread+0x870/0xd30 [ 286.888504][ T30] ? __kthread_parkme+0x169/0x1d0 [ 286.893584][ T30] ? __pfx_worker_thread+0x10/0x10 [ 286.899054][ T30] kthread+0x2f0/0x390 [ 286.903168][ T30] ? __pfx_worker_thread+0x10/0x10 [ 286.908687][ T30] ? __pfx_kthread+0x10/0x10 [ 286.913322][ T30] ret_from_fork+0x4b/0x80 [ 286.918026][ T30] ? __pfx_kthread+0x10/0x10 [ 286.922658][ T30] ret_from_fork_asm+0x1a/0x30 [ 286.927763][ T30] [ 286.931126][ T30] [ 286.931126][ T30] Showing all locks held in the system: [ 286.939260][ T30] 1 lock held by khungtaskd/30: [ 286.944147][ T30] #0: ffffffff8e937da0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 286.954356][ T30] 4 locks held by kworker/u8:8/2923: [ 286.959886][ T30] #0: ffff888143a9f948 ((wq_completion)writeback){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 [ 286.971387][ T30] #1: ffffc9000b4dfd00 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 [ 286.984112][ T30] #2: ffff88807c91e0e0 (&type->s_umount_key#44){.+.+}-{3:3}, at: super_trylock_shared+0x22/0xf0 [ 286.995194][ T30] #3: ffff8880744b81c8 (&jfs_ip->commit_mutex){+.+.}-{3:3}, at: jfs_commit_inode+0x24a/0x590 [ 287.006175][ T30] 2 locks held by getty/5593: [ 287.011431][ T30] #0: ffff88803195f0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 287.021685][ T30] #1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 [ 287.032392][ T30] 4 locks held by syz-executor116/5836: [ 287.038356][ T30] [ 287.040722][ T30] ============================================= [ 287.040722][ T30] [ 287.049540][ T30] NMI backtrace for cpu 1 [ 287.053918][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc7-syzkaller-00212-g4a5df3796467 #0 [ 287.064449][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 287.074538][ T30] Call Trace: [ 287.077852][ T30] [ 287.080818][ T30] dump_stack_lvl+0x241/0x360 [ 287.085542][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.090794][ T30] ? __pfx__printk+0x10/0x10 [ 287.095434][ T30] nmi_cpu_backtrace+0x49c/0x4d0 [ 287.100427][ T30] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.105925][ T30] ? _printk+0xd5/0x120 [ 287.110117][ T30] ? __pfx__printk+0x10/0x10 [ 287.114745][ T30] ? __wake_up_klogd+0xcc/0x110 [ 287.119733][ T30] ? __pfx__printk+0x10/0x10 [ 287.124366][ T30] ? __rcu_read_unlock+0xa1/0x110 [ 287.129432][ T30] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.135455][ T30] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 287.141482][ T30] watchdog+0xff4/0x1040 [ 287.145772][ T30] ? watchdog+0x1ea/0x1040 [ 287.150234][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.154949][ T30] kthread+0x2f0/0x390 [ 287.159047][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.163761][ T30] ? __pfx_kthread+0x10/0x10 [ 287.168380][ T30] ret_from_fork+0x4b/0x80 [ 287.172921][ T30] ? __pfx_kthread+0x10/0x10 [ 287.177540][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.182357][ T30] [ 287.185577][ T30] Sending NMI from CPU 1 to CPUs 0: [ 287.190889][ C0] NMI backtrace for cpu 0 [ 287.190911][ C0] CPU: 0 UID: 0 PID: 5836 Comm: syz-executor116 Not tainted 6.12.0-rc7-syzkaller-00212-g4a5df3796467 #0 [ 287.190932][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 287.190943][ C0] RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x35/0x90 [ 287.190973][ C0] Code: 14 25 80 d7 03 00 65 8b 05 c0 ea 6e 7e 25 00 01 ff 00 74 10 3d 00 01 00 00 75 5b 83 ba 1c 16 00 00 00 74 52 8b 82 f8 15 00 00 <83> f8 03 75 47 48 8b 8a 00 16 00 00 44 8b 8a fc 15 00 00 49 c1 e1 [ 287.190994][ C0] RSP: 0018:ffffc90003b4f138 EFLAGS: 00000246 [ 287.191011][ C0] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807c11da00 [ 287.191024][ C0] RDX: ffff88807c11da00 RSI: 0000000000000000 RDI: 00000000000000ff [ 287.191036][ C0] RBP: ffffc90003b4f330 R08: ffffffff832b3020 R09: 0000000000000000 [ 287.191049][ C0] R10: 00300065006c0069 R11: 006605ff00000020 R12: ffff888078205000 [ 287.191062][ C0] R13: dffffc0000000000 R14: ffff8880744b8430 R15: 0000000000000000 [ 287.191075][ C0] FS: 00005555898ac380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 [ 287.191091][ C0] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 287.191104][ C0] CR2: 000055c488796600 CR3: 0000000073d70000 CR4: 00000000003526f0 [ 287.191120][ C0] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 287.191130][ C0] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 287.191142][ C0] Call Trace: [ 287.191149][ C0] [ 287.191156][ C0] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 287.191184][ C0] ? __pfx_lock_acquire+0x10/0x10 [ 287.191212][ C0] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 287.191240][ C0] ? nmi_handle+0x2a/0x5a0 [ 287.191265][ C0] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 287.191289][ C0] ? nmi_handle+0x14f/0x5a0 [ 287.191307][ C0] ? nmi_handle+0x2a/0x5a0 [ 287.191326][ C0] ? __sanitizer_cov_trace_const_cmp1+0x35/0x90 [ 287.191349][ C0] ? default_do_nmi+0x63/0x160 [ 287.191367][ C0] ? exc_nmi+0x123/0x1f0 [ 287.191383][ C0] ? end_repeat_nmi+0xf/0x53 [ 287.191420][ C0] ? dtSplitRoot+0x8b0/0x1930 [ 287.191446][ C0] ? __sanitizer_cov_trace_const_cmp1+0x35/0x90 [ 287.191469][ C0] ? __sanitizer_cov_trace_const_cmp1+0x35/0x90 [ 287.191492][ C0] ? __sanitizer_cov_trace_const_cmp1+0x35/0x90 [ 287.191515][ C0] [ 287.191521][ C0] [ 287.191527][ C0] dtSplitRoot+0x8b0/0x1930 [ 287.191563][ C0] ? __pfx_dtSplitRoot+0x10/0x10 [ 287.191588][ C0] ? __pfx_dbAlloc+0x10/0x10 [ 287.191609][ C0] ? __kasan_kmalloc+0x98/0xb0 [ 287.191634][ C0] ? dtInsert+0x857/0x6c10 [ 287.191657][ C0] ? __kmalloc_cache_noprof+0x19c/0x2c0 [ 287.191678][ C0] dtInsert+0x12cd/0x6c10 [ 287.191705][ C0] ? kasan_save_free_info+0x40/0x50 [ 287.191724][ C0] ? kfree+0x1a0/0x440 [ 287.191741][ C0] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.191770][ C0] ? mark_lock+0x9a/0x360 [ 287.191786][ C0] ? __pfx_dtInsert+0x10/0x10 [ 287.191810][ C0] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.191837][ C0] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 287.191865][ C0] ? lockdep_hardirqs_on+0x99/0x150 [ 287.191888][ C0] ? dtSearch+0x1d59/0x2520 [ 287.191920][ C0] ? kfree+0x1a0/0x440 [ 287.191935][ C0] ? dtSearch+0x1d59/0x2520 [ 287.191977][ C0] jfs_rename+0xafe/0x1bf0 [ 287.191997][ C0] ? __pfx_jfs_rename+0x10/0x10 [ 287.192033][ C0] ? do_raw_spin_unlock+0x13c/0x8b0 [ 287.192054][ C0] ? __asan_memcpy+0x40/0x70 [ 287.192076][ C0] ? __pfx_jfs_rename+0x10/0x10 [ 287.192093][ C0] vfs_rename+0xbdb/0xf00 [ 287.192125][ C0] ? __pfx_vfs_rename+0x10/0x10 [ 287.192153][ C0] ? bpf_lsm_path_rename+0x9/0x10 [ 287.192179][ C0] do_renameat2+0xd94/0x13f0 [ 287.192216][ C0] ? __pfx_do_renameat2+0x10/0x10 [ 287.192252][ C0] ? strncpy_from_user+0x13a/0x260 [ 287.192272][ C0] ? getname_flags+0x1e3/0x540 [ 287.192291][ C0] __x64_sys_rename+0x82/0x90 [ 287.192317][ C0] do_syscall_64+0xf3/0x230 [ 287.192340][ C0] ? clear_bhb_loop+0x35/0x90 [ 287.192362][ C0] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 287.192381][ C0] RIP: 0033:0x7f70a6600a59 [ 287.192401][ C0] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 [ 287.192415][ C0] RSP: 002b:00007ffe0c7bb358 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 [ 287.192433][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f70a6600a59 [ 287.192445][ C0] RDX: 0000000000000000 RSI: 0000000020000f00 RDI: 0000000020000200 [ 287.192457][ C0] RBP: 00007f70a667a5f0 R08: 0000000000006152 R09: 00005555898ad4c0 [ 287.192469][ C0] R10: 00007ffe0c7bb220 R11: 0000000000000246 R12: 00007ffe0c7bb380 [ 287.192481][ C0] R13: 00007ffe0c7bb5a8 R14: 431bde82d7b634db R15: 00007f70a664903b [ 287.192501][ C0] [ 287.192508][ C0] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.619 msecs [ 287.193236][ T30] Kernel panic - not syncing: hung_task: blocked tasks [ 287.676514][ T30] CPU: 1 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc7-syzkaller-00212-g4a5df3796467 #0 [ 287.687039][ T30] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 [ 287.697108][ T30] Call Trace: [ 287.700419][ T30] [ 287.703360][ T30] dump_stack_lvl+0x241/0x360 [ 287.708082][ T30] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.713333][ T30] ? __pfx__printk+0x10/0x10 [ 287.717951][ T30] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 287.723983][ T30] ? vscnprintf+0x5d/0x90 [ 287.728352][ T30] panic+0x349/0x880 [ 287.732275][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.738460][ T30] ? __pfx_panic+0x10/0x10 [ 287.742903][ T30] ? preempt_schedule_thunk+0x1a/0x30 [ 287.748396][ T30] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.754571][ T30] ? nmi_trigger_cpumask_backtrace+0x2d4/0x320 [ 287.760745][ T30] ? nmi_trigger_cpumask_backtrace+0x2d9/0x320 [ 287.766929][ T30] watchdog+0x1033/0x1040 [ 287.771490][ T30] ? watchdog+0x1ea/0x1040 [ 287.776232][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.780946][ T30] kthread+0x2f0/0x390 [ 287.785035][ T30] ? __pfx_watchdog+0x10/0x10 [ 287.789839][ T30] ? __pfx_kthread+0x10/0x10 [ 287.794458][ T30] ret_from_fork+0x4b/0x80 [ 287.798905][ T30] ? __pfx_kthread+0x10/0x10 [ 287.803513][ T30] ret_from_fork_asm+0x1a/0x30 [ 287.808321][ T30] [ 287.811629][ T30] Kernel Offset: disabled [ 287.815961][ T30] Rebooting in 86400 seconds..