./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2204063173 <...> Warning: Permanently added '10.128.1.46' (ED25519) to the list of known hosts. execve("./syz-executor2204063173", ["./syz-executor2204063173"], 0x7ffc901b5f60 /* 10 vars */) = 0 brk(NULL) = 0x555568988000 brk(0x555568988d00) = 0x555568988d00 arch_prctl(ARCH_SET_FS, 0x555568988380) = 0 set_tid_address(0x555568988650) = 5076 set_robust_list(0x555568988660, 24) = 0 rseq(0x555568988ca0, 0x20, 0, 0x53053053) = 0 prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0 readlink("/proc/self/exe", "/root/syz-executor2204063173", 4096) = 28 getrandom("\x1e\xe7\xc0\xfd\x3d\xdd\x91\xed", 8, GRND_NONBLOCK) = 8 brk(NULL) = 0x555568988d00 brk(0x5555689a9d00) = 0x5555689a9d00 brk(0x5555689aa000) = 0x5555689aa000 mprotect(0x7fb65aa27000, 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 5077 attached , child_tidptr=0x555568988650) = 5077 [pid 5077] set_robust_list(0x555568988660, 24) = 0 [pid 5077] prctl(PR_SET_PDEATHSIG, SIGKILL) = 0 [pid 5077] setpgid(0, 0) = 0 [pid 5077] openat(AT_FDCWD, "/proc/self/oom_score_adj", O_WRONLY|O_CLOEXEC) = 3 [pid 5077] write(3, "1000", 4) = 4 [pid 5077] close(3) = 0 [pid 5077] getegid() = 0 [pid 5077] memfd_create("syzkaller", 0) = 3 [pid 5077] mmap(NULL, 138412032, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0x7fb652400000 [pid 5077] 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 5077] munmap(0x7fb652400000, 138412032) = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = 4 [pid 5077] ioctl(4, LOOP_SET_FD, 3) = 0 [pid 5077] close(3) = 0 [pid 5077] close(4) = 0 [pid 5077] mkdir("./file1", 0777) = 0 [ 76.736088][ T5077] loop0: detected capacity change from 0 to 512 [ 76.776091][ T5077] EXT4-fs: Warning: mounting with data=journal disables delayed allocation, dioread_nolock, O_DIRECT and fast_commit support! [ 76.814122][ T5077] EXT4-fs error (device loop0): ext4_do_update_inode:5082: inode #3: comm syz-executor220: corrupted inode contents [ 76.828586][ T5077] EXT4-fs error (device loop0): ext4_dirty_inode:5942: inode #3: comm syz-executor220: mark_inode_dirty error [ 76.843445][ T5077] EXT4-fs error (device loop0): ext4_do_update_inode:5082: inode #3: comm syz-executor220: corrupted inode contents [ 76.856284][ T5077] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #3: comm syz-executor220: mark_inode_dirty error [ 76.870882][ T5077] Quota error (device loop0): write_blk: dquota write failed [ 76.878676][ T5077] Quota error (device loop0): qtree_write_dquot: Error -117 occurred while creating quota [ 76.892154][ T5077] EXT4-fs error (device loop0): ext4_do_update_inode:5082: inode #16: comm syz-executor220: corrupted inode contents [ 76.907232][ T5077] EXT4-fs error (device loop0): ext4_dirty_inode:5942: inode #16: comm syz-executor220: mark_inode_dirty error [ 76.919676][ T5077] EXT4-fs error (device loop0): ext4_do_update_inode:5082: inode #16: comm syz-executor220: corrupted inode contents [ 76.932950][ T5077] EXT4-fs error (device loop0): __ext4_ext_dirty:202: inode #16: comm syz-executor220: mark_inode_dirty error [ 76.945276][ T5077] EXT4-fs error (device loop0): ext4_do_update_inode:5082: inode #16: comm syz-executor220: corrupted inode contents [ 76.959002][ T5077] EXT4-fs error (device loop0) in ext4_orphan_del:305: Corrupt filesystem [ 76.968281][ T5077] EXT4-fs error (device loop0): ext4_do_update_inode:5082: inode #16: comm syz-executor220: corrupted inode contents [ 76.981713][ T5077] EXT4-fs error (device loop0): ext4_truncate:4169: inode #16: comm syz-executor220: mark_inode_dirty error [ 76.994172][ T5077] EXT4-fs error (device loop0) in ext4_process_orphan:347: Corrupt filesystem [ 77.006083][ T5077] EXT4-fs (loop0): 1 truncate cleaned up [pid 5077] mount("/dev/loop0", "./file1", "ext4", MS_SYNCHRONOUS|MS_STRICTATIME|MS_LAZYTIME, ",errors=continue") = 0 [pid 5077] openat(AT_FDCWD, "./file1", O_RDONLY|O_DIRECTORY) = 3 [pid 5077] chdir("./file1") = 0 [pid 5077] openat(AT_FDCWD, "/dev/loop0", O_RDWR) = -1 EBUSY (Device or resource busy) [pid 5077] setxattr("./file0", "trusted.overlay.upper", NULL, 0, 0) = 0 [ 77.011774][ T5077] EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: writeback. [ 77.024615][ T5077] ext4 filesystem being mounted at /root/file1 supports timestamps until 2038-01-19 (0x7fffffff) [pid 5077] setxattr("./file0", "user.incfs.size", "\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"..., 65517, 0 [pid 5076] kill(-5077, SIGKILL) = 0 [pid 5076] kill(5077, SIGKILL) = 0 [pid 5076] openat(AT_FDCWD, "/sys/fs/fuse/connections", O_RDONLY|O_NONBLOCK|O_CLOEXEC|O_DIRECTORY) = 3 [pid 5076] newfstatat(3, "", {st_mode=S_IFDIR|0755, st_size=0, ...}, AT_EMPTY_PATH) = 0 [pid 5076] getdents64(3, 0x5555689896f0 /* 2 entries */, 32768) = 48 [pid 5076] getdents64(3, 0x5555689896f0 /* 0 entries */, 32768) = 0 [pid 5076] close(3) = 0 [ 86.376332][ T44] cfg80211: failed to load regulatory.db [ 286.053980][ T29] INFO: task syz-executor220:5077 blocked for more than 143 seconds. [ 286.062235][ T29] Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 286.069536][ T29] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 286.078316][ T29] task:syz-executor220 state:D stack:20088 pid:5077 tgid:5077 ppid:5076 flags:0x00004006 [ 286.088619][ T29] Call Trace: [ 286.091915][ T29] [ 286.094950][ T29] __schedule+0x17d3/0x4a20 [ 286.099535][ T29] ? srso_return_thunk+0x5/0x5f [ 286.104469][ T29] ? __pfx___schedule+0x10/0x10 [ 286.109366][ T29] ? __pfx_lock_release+0x10/0x10 [ 286.114510][ T29] ? _raw_spin_unlock_irqrestore+0x8f/0x140 [ 286.120475][ T29] ? srso_return_thunk+0x5/0x5f [ 286.125437][ T29] ? srso_return_thunk+0x5/0x5f [ 286.130324][ T29] ? _raw_spin_unlock_irqrestore+0xdd/0x140 [ 286.136347][ T29] ? __pfx__raw_spin_unlock_irqrestore+0x10/0x10 [ 286.142756][ T29] ? schedule+0x90/0x320 [ 286.147091][ T29] schedule+0x14b/0x320 [ 286.151299][ T29] io_schedule+0x8d/0x110 [ 286.155746][ T29] bit_wait_io+0x12/0xd0 [ 286.160057][ T29] __wait_on_bit_lock+0xd7/0x530 [ 286.165133][ T29] ? __pfx_bit_wait_io+0x10/0x10 [ 286.170134][ T29] out_of_line_wait_on_bit_lock+0x1d5/0x260 [ 286.176175][ T29] ? __pfx_bit_wait_io+0x10/0x10 [ 286.181150][ T29] ? __pfx_out_of_line_wait_on_bit_lock+0x10/0x10 [ 286.187658][ T29] ? __ext4_journal_get_write_access+0x29b/0x6a0 [ 286.194139][ T29] ? __pfx_wake_bit_function+0x10/0x10 [ 286.199654][ T29] ext4_quota_write+0x381/0x580 [ 286.204647][ T29] ? __pfx_ext4_quota_write+0x10/0x10 [ 286.210111][ T29] ? do_raw_spin_unlock+0x13c/0x8b0 [ 286.215450][ T29] ? v2r1_mem2diskdqb+0x35e/0x3e0 [ 286.220518][ T29] ? __pfx_ext4_quota_write+0x10/0x10 [ 286.225998][ T29] qtree_write_dquot+0x26b/0x5b0 [ 286.230990][ T29] ? __pfx_qtree_write_dquot+0x10/0x10 [ 286.236597][ T29] ? dquot_commit+0x5b/0x520 [ 286.241218][ T29] ? __pfx___might_resched+0x10/0x10 [ 286.246595][ T29] ? __pfx___mutex_lock+0x10/0x10 [ 286.251672][ T29] v2_write_dquot+0x189/0x2a0 [ 286.256478][ T29] dquot_commit+0x3cb/0x520 [ 286.261026][ T29] ext4_write_dquot+0x1f2/0x2c0 [ 286.265967][ T29] mark_all_dquot_dirty+0xfd/0x410 [ 286.271127][ T29] dquot_alloc_inode+0x7ea/0xc90 [ 286.276170][ T29] ? dquot_alloc_inode+0x1bf/0xc90 [ 286.281326][ T29] ? __pfx_dquot_alloc_inode+0x10/0x10 [ 286.286854][ T29] ? stack_depot_save_flags+0x37d/0x860 [ 286.292465][ T29] ? srso_return_thunk+0x5/0x5f [ 286.297439][ T29] ? kasan_save_track+0x51/0x80 [ 286.302340][ T29] ? kasan_save_track+0x3f/0x80 [ 286.307266][ T29] ? kasan_save_free_info+0x40/0x50 [ 286.312501][ T29] ? poison_slab_object+0xa6/0xe0 [ 286.317643][ T29] ? __kasan_slab_free+0x37/0x60 [ 286.322650][ T29] ? mb_cache_entry_delete_or_get+0x1d4/0x1f0 [ 286.328795][ T29] ? ext4_xattr_block_set+0x602/0x35e0 [ 286.334428][ T29] ? ext4_xattr_set_handle+0xe54/0x1780 [ 286.340040][ T29] ? ext4_xattr_set+0x241/0x3d0 [ 286.345028][ T29] ext4_xattr_set_entry+0xaf3/0x3fd0 [ 286.350358][ T29] ? entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 286.356558][ T29] ? srso_return_thunk+0x5/0x5f [ 286.361463][ T29] ? lockdep_hardirqs_on_prepare+0x43d/0x780 [ 286.367524][ T29] ? __pfx_ext4_xattr_set_entry+0x10/0x10 [ 286.373303][ T29] ? kasan_quarantine_put+0xdc/0x230 [ 286.378692][ T29] ? srso_return_thunk+0x5/0x5f [ 286.383583][ T29] ? lockdep_hardirqs_on+0x99/0x150 [ 286.388860][ T29] ? srso_return_thunk+0x5/0x5f [ 286.393834][ T29] ? srso_return_thunk+0x5/0x5f [ 286.398692][ T29] ? kmem_cache_free+0x102/0x2b0 [ 286.403641][ T29] ? srso_return_thunk+0x5/0x5f [ 286.408570][ T29] ? mb_cache_entry_delete_or_get+0x1d4/0x1f0 [ 286.414764][ T29] ext4_xattr_block_set+0x6a2/0x35e0 [ 286.420125][ T29] ? srso_return_thunk+0x5/0x5f [ 286.425079][ T29] ? fs_reclaim_acquire+0x93/0x130 [ 286.430233][ T29] ? srso_return_thunk+0x5/0x5f [ 286.435194][ T29] ? bdev_getblk+0x73/0x610 [ 286.439734][ T29] ? __pfx_ext4_xattr_block_set+0x10/0x10 [ 286.445567][ T29] ? srso_return_thunk+0x5/0x5f [ 286.450460][ T29] ? ext4_xattr_block_find+0x468/0x520 [ 286.456068][ T29] ? srso_return_thunk+0x5/0x5f [ 286.460965][ T29] ? ext4_xattr_ibody_set+0xfd/0x340 [ 286.466363][ T29] ext4_xattr_set_handle+0xe54/0x1780 [ 286.471829][ T29] ? __pfx_ext4_xattr_set_handle+0x10/0x10 [ 286.477822][ T29] ? __pfx___dquot_initialize+0x10/0x10 [ 286.483421][ T29] ? srso_return_thunk+0x5/0x5f [ 286.488343][ T29] ? ext4_journal_check_start+0x175/0x250 [ 286.494185][ T29] ? __ext4_journal_start_sb+0x26c/0x5b0 [ 286.499836][ T29] ext4_xattr_set+0x241/0x3d0 [ 286.504610][ T29] ? __pfx_ext4_xattr_set+0x10/0x10 [ 286.509859][ T29] ? evm_protect_xattr+0x4be/0xb30 [ 286.515098][ T29] ? srso_return_thunk+0x5/0x5f [ 286.520006][ T29] ? ext4_xattr_user_set+0xc9/0x110 [ 286.525282][ T29] ? __pfx_ext4_xattr_user_set+0x10/0x10 [ 286.530952][ T29] __vfs_setxattr+0x46a/0x4a0 [ 286.535840][ T29] __vfs_setxattr_noperm+0x12e/0x5e0 [ 286.541207][ T29] vfs_setxattr+0x221/0x430 [ 286.545893][ T29] ? __pfx_vfs_setxattr+0x10/0x10 [ 286.550969][ T29] ? rep_movs_alternative+0x5b/0x70 [ 286.556278][ T29] ? srso_return_thunk+0x5/0x5f [ 286.561173][ T29] ? _copy_from_user+0xa6/0xe0 [ 286.566048][ T29] setxattr+0x25d/0x2f0 [ 286.570260][ T29] ? __pfx_setxattr+0x10/0x10 [ 286.575092][ T29] ? srso_return_thunk+0x5/0x5f [ 286.579996][ T29] ? mnt_get_write_access+0x226/0x2b0 [ 286.585472][ T29] path_setxattr+0x1c0/0x2a0 [ 286.590131][ T29] ? __pfx_path_setxattr+0x10/0x10 [ 286.595374][ T29] ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 [ 286.601760][ T29] ? do_syscall_64+0x10a/0x240 [ 286.606629][ T29] __x64_sys_setxattr+0xbb/0xd0 [ 286.611529][ T29] do_syscall_64+0xfd/0x240 [ 286.616166][ T29] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 286.622114][ T29] RIP: 0033:0x7fb65a9b2d99 [ 286.626601][ T29] RSP: 002b:00007fff62ecb458 EFLAGS: 00000246 ORIG_RAX: 00000000000000bc [ 286.635152][ T29] RAX: ffffffffffffffda RBX: 0030656c69662f2e RCX: 00007fb65a9b2d99 [ 286.643143][ T29] RDX: 0000000020000380 RSI: 0000000020000340 RDI: 00000000200002c0 [ 286.651190][ T29] RBP: 00007fb65aa275f0 R08: 0000000000000000 R09: 00005555689894c0 [ 286.659270][ T29] R10: 000000000000ffed R11: 0000000000000246 R12: 00007fff62ecb480 [ 286.667310][ T29] R13: 00007fff62ecb6a8 R14: 431bde82d7b634db R15: 00007fb65a9fc03b [ 286.675404][ T29] [ 286.678434][ T29] [ 286.678434][ T29] Showing all locks held in the system: [ 286.686206][ T29] 1 lock held by khungtaskd/29: [ 286.691077][ T29] #0: ffffffff8e132020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 [ 286.701276][ T29] 1 lock held by syslogd/4504: [ 286.706117][ T29] #0: ffff8880b953e358 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2a/0x140 [ 286.716218][ T29] 2 locks held by getty/4827: [ 286.720924][ T29] #0: ffff888029fba0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 [ 286.730842][ T29] #1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b5/0x1e10 [ 286.741108][ T29] 6 locks held by syz-executor220/5077: [ 286.746719][ T29] #0: ffff88802e776420 (sb_writers#4){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 [ 286.756061][ T29] #1: ffff88807e33a200 (&type->i_mutex_dir_key#3){++++}-{3:3}, at: vfs_setxattr+0x1e1/0x430 [ 286.766402][ T29] #2: ffff88807e339ec8 (&ei->xattr_sem){++++}-{3:3}, at: ext4_xattr_set_handle+0x26b/0x1780 [ 286.776867][ T29] #3: ffffffff8e291830 (dquot_srcu){.+.+}-{0:0}, at: dquot_alloc_inode+0x1bf/0xc90 [ 286.786408][ T29] #4: ffff8880779a80a8 (&dquot->dq_lock){+.+.}-{3:3}, at: dquot_commit+0x5b/0x520 [ 286.795909][ T29] #5: ffff88802e776210 (&s->s_dquot.dqio_sem){++++}-{3:3}, at: v2_write_dquot+0x9c/0x2a0 [ 286.805980][ T29] [ 286.808335][ T29] ============================================= [ 286.808335][ T29] [ 286.816831][ T29] NMI backtrace for cpu 0 [ 286.821174][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 286.830624][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 286.840682][ T29] Call Trace: [ 286.843962][ T29] [ 286.846893][ T29] dump_stack_lvl+0x241/0x360 [ 286.851605][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 286.856828][ T29] ? __pfx__printk+0x10/0x10 [ 286.861433][ T29] ? vprintk_emit+0x631/0x770 [ 286.866134][ T29] ? __pfx_vprintk_emit+0x10/0x10 [ 286.871180][ T29] nmi_cpu_backtrace+0x49c/0x4d0 [ 286.876140][ T29] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 286.881605][ T29] ? _printk+0xd5/0x120 [ 286.885774][ T29] ? __pfx__printk+0x10/0x10 [ 286.890380][ T29] ? __wake_up_klogd+0xcc/0x110 [ 286.895248][ T29] ? __pfx__printk+0x10/0x10 [ 286.899853][ T29] ? srso_return_thunk+0x5/0x5f [ 286.904710][ T29] ? __rcu_read_unlock+0xa1/0x110 [ 286.909752][ T29] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 286.915752][ T29] nmi_trigger_cpumask_backtrace+0x198/0x320 [ 286.921745][ T29] watchdog+0xfb0/0xff0 [ 286.925920][ T29] ? watchdog+0x1ea/0xff0 [ 286.930272][ T29] ? __pfx_watchdog+0x10/0x10 [ 286.934964][ T29] kthread+0x2f2/0x390 [ 286.939048][ T29] ? __pfx_watchdog+0x10/0x10 [ 286.943740][ T29] ? __pfx_kthread+0x10/0x10 [ 286.948361][ T29] ret_from_fork+0x4d/0x80 [ 286.952794][ T29] ? __pfx_kthread+0x10/0x10 [ 286.957395][ T29] ret_from_fork_asm+0x1a/0x30 [ 286.962191][ T29] [ 286.965357][ T29] Sending NMI from CPU 0 to CPUs 1: [ 286.970595][ C1] NMI backtrace for cpu 1 [ 286.970610][ C1] CPU: 1 PID: 4504 Comm: syslogd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 286.970632][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 286.970645][ C1] RIP: 0010:stack_trace_consume_entry+0x2f/0x280 [ 286.970685][ C1] Code: 41 57 41 56 41 55 41 54 53 48 83 ec 18 48 89 fb 48 ba 00 00 00 00 00 fc ff df 4c 8d 4f 10 4d 89 cf 49 c1 ef 03 41 0f b6 04 17 <84> c0 0f 85 06 01 00 00 44 8b 43 10 48 8d 6b 08 49 89 ec 49 c1 ec [ 286.970703][ C1] RSP: 0018:ffffc9000315f4b0 EFLAGS: 00000216 [ 286.970722][ C1] RAX: 0000000000000000 RBX: ffffc9000315f5e0 RCX: ffff88807bd10000 [ 286.970738][ C1] RDX: dffffc0000000000 RSI: ffffffff81f80f16 RDI: ffffc9000315f5e0 [ 286.970755][ C1] RBP: ffffc9000315f590 R08: ffffffff81372702 R09: ffffc9000315f5f0 [ 286.970771][ C1] R10: 0000000000000003 R11: ffffffff8180e0a0 R12: ffff88807bd10000 [ 286.970787][ C1] R13: ffffffff8180e0a0 R14: ffffc9000315f5e0 R15: 1ffff9200062bebe [ 286.970807][ C1] FS: 00007fe5074c5380(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 [ 286.970826][ C1] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 286.970841][ C1] CR2: 0000560ddc150600 CR3: 000000007be70000 CR4: 0000000000350ef0 [ 286.970859][ C1] Call Trace: [ 286.970867][ C1] [ 286.970875][ C1] ? nmi_cpu_backtrace+0x3c2/0x4d0 [ 286.970903][ C1] ? __pfx_lock_acquire+0x10/0x10 [ 286.970930][ C1] ? __pfx_nmi_cpu_backtrace+0x10/0x10 [ 286.970956][ C1] ? nmi_handle+0x2a/0x580 [ 286.970990][ C1] ? nmi_cpu_backtrace_handler+0xc/0x20 [ 286.971020][ C1] ? nmi_handle+0x151/0x580 [ 286.971043][ C1] ? nmi_handle+0x2a/0x580 [ 286.971067][ C1] ? stack_trace_consume_entry+0x2f/0x280 [ 286.971100][ C1] ? default_do_nmi+0x63/0x160 [ 286.971128][ C1] ? exc_nmi+0x123/0x1f0 [ 286.971154][ C1] ? end_repeat_nmi+0xf/0x53 [ 286.971183][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 286.971218][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 286.971252][ C1] ? arch_stack_walk+0x132/0x1b0 [ 286.971276][ C1] ? poison_slab_object+0xa6/0xe0 [ 286.971306][ C1] ? stack_trace_consume_entry+0x2f/0x280 [ 286.971341][ C1] ? stack_trace_consume_entry+0x2f/0x280 [ 286.971377][ C1] ? stack_trace_consume_entry+0x2f/0x280 [ 286.971411][ C1] [ 286.971418][ C1] [ 286.971426][ C1] ? srso_return_thunk+0x5/0x5f [ 286.971451][ C1] ? __kernel_text_address+0xd/0x40 [ 286.971482][ C1] ? poison_slab_object+0xa6/0xe0 [ 286.971510][ C1] ? __pfx_stack_trace_consume_entry+0x10/0x10 [ 286.971549][ C1] arch_stack_walk+0x145/0x1b0 [ 286.971576][ C1] ? poison_slab_object+0xa6/0xe0 [ 286.971609][ C1] stack_trace_save+0x118/0x1d0 [ 286.971644][ C1] ? __pfx_stack_trace_save+0x10/0x10 [ 286.971679][ C1] ? srso_return_thunk+0x5/0x5f [ 286.971703][ C1] ? mark_lock+0x9a/0x350 [ 286.971730][ C1] ? __unix_dgram_recvmsg+0xe2d/0x1450 [ 286.971767][ C1] kasan_save_track+0x3f/0x80 [ 286.971793][ C1] ? kasan_save_track+0x3f/0x80 [ 286.971818][ C1] ? kasan_save_free_info+0x40/0x50 [ 286.971875][ C1] ? srso_return_thunk+0x5/0x5f [ 286.971900][ C1] ? skb_release_data+0x585/0x870 [ 286.971924][ C1] kasan_save_free_info+0x40/0x50 [ 286.971946][ C1] poison_slab_object+0xa6/0xe0 [ 286.971976][ C1] ? __unix_dgram_recvmsg+0xe2d/0x1450 [ 286.972008][ C1] __kasan_slab_free+0x37/0x60 [ 286.972037][ C1] kmem_cache_free+0x102/0x2b0 [ 286.972065][ C1] __unix_dgram_recvmsg+0xe2d/0x1450 [ 286.972097][ C1] ? srso_return_thunk+0x5/0x5f [ 286.972133][ C1] ? __pfx___unix_dgram_recvmsg+0x10/0x10 [ 286.972165][ C1] ? aa_file_perm+0x3ef/0xf60 [ 286.972190][ C1] ? __pfx_aa_sk_perm+0x10/0x10 [ 286.972224][ C1] ? srso_return_thunk+0x5/0x5f [ 286.972249][ C1] ? aa_sock_msg_perm+0x91/0x160 [ 286.972284][ C1] ? srso_return_thunk+0x5/0x5f [ 286.972309][ C1] ? srso_return_thunk+0x5/0x5f [ 286.972333][ C1] ? unix_dgram_recvmsg+0xb6/0xe0 [ 286.972356][ C1] ? __pfx_unix_dgram_recvmsg+0x10/0x10 [ 286.972381][ C1] sock_recvmsg+0x231/0x280 [ 286.972414][ C1] sock_read_iter+0x2ca/0x3e0 [ 286.972441][ C1] ? __pfx_sock_read_iter+0x10/0x10 [ 286.972474][ C1] ? srso_return_thunk+0x5/0x5f [ 286.972498][ C1] ? srso_return_thunk+0x5/0x5f [ 286.972526][ C1] ? security_file_permission+0x7f/0xa0 [ 286.972559][ C1] ? srso_return_thunk+0x5/0x5f [ 286.972589][ C1] vfs_read+0x97d/0xb70 [ 286.972623][ C1] ? __pfx_vfs_read+0x10/0x10 [ 286.972658][ C1] ? xfd_validate_state+0x6e/0x150 [ 286.972693][ C1] ? srso_return_thunk+0x5/0x5f [ 286.972717][ C1] ? __fdget_pos+0x1a2/0x320 [ 286.972752][ C1] ksys_read+0x1a0/0x2c0 [ 286.972779][ C1] ? srso_return_thunk+0x5/0x5f [ 286.972808][ C1] ? __pfx_ksys_read+0x10/0x10 [ 286.972836][ C1] ? do_syscall_64+0x10a/0x240 [ 286.972859][ C1] ? do_syscall_64+0xb6/0x240 [ 286.972881][ C1] do_syscall_64+0xfd/0x240 [ 286.972904][ C1] entry_SYSCALL_64_after_hwframe+0x6d/0x75 [ 286.972931][ C1] RIP: 0033:0x7fe507619b6a [ 286.972949][ C1] Code: 00 3d 00 00 41 00 75 0d 50 48 8d 3d 2d 08 0a 00 e8 ea 7d 01 00 31 c0 e9 07 ff ff ff 64 8b 04 25 18 00 00 00 85 c0 75 1b 0f 05 <48> 3d 00 f0 ff ff 76 6c 48 8b 15 8f a2 0d 00 f7 d8 64 89 02 48 83 [ 286.972966][ C1] RSP: 002b:00007fff88988c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 [ 286.972987][ C1] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fe507619b6a [ 286.973002][ C1] RDX: 00000000000000ff RSI: 000055bf429ea950 RDI: 0000000000000000 [ 286.973016][ C1] RBP: 000055bf429ea910 R08: 0000000000000001 R09: 0000000000000000 [ 286.973030][ C1] R10: 00007fe5077b83a3 R11: 0000000000000246 R12: 000055bf429ea99c [ 286.973045][ C1] R13: 000055bf429ea950 R14: 0000000000000000 R15: 00007fe5077fca80 [ 286.973072][ C1] [ 286.973081][ C1] INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 2.485 msecs [ 286.973592][ T29] Kernel panic - not syncing: hung_task: blocked tasks [ 287.539405][ T29] CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 [ 287.548876][ T29] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 [ 287.558939][ T29] Call Trace: [ 287.562226][ T29] [ 287.565162][ T29] dump_stack_lvl+0x241/0x360 [ 287.569870][ T29] ? __pfx_dump_stack_lvl+0x10/0x10 [ 287.575104][ T29] ? __pfx__printk+0x10/0x10 [ 287.579719][ T29] ? srso_return_thunk+0x5/0x5f [ 287.584579][ T29] ? vscnprintf+0x5d/0x90 [ 287.588919][ T29] panic+0x349/0x860 [ 287.592833][ T29] ? nmi_trigger_cpumask_backtrace+0x244/0x320 [ 287.598999][ T29] ? __pfx_panic+0x10/0x10 [ 287.603435][ T29] ? tick_nohz_tick_stopped+0x82/0xb0 [ 287.608827][ T29] ? srso_return_thunk+0x5/0x5f [ 287.613697][ T29] ? __irq_work_queue_local+0x137/0x3e0 [ 287.619263][ T29] ? srso_return_thunk+0x5/0x5f [ 287.624220][ T29] ? irq_work_queue+0xca/0x150 [ 287.629003][ T29] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.635006][ T29] ? __pfx_nmi_raise_cpu_backtrace+0x10/0x10 [ 287.641008][ T29] ? srso_return_thunk+0x5/0x5f [ 287.645878][ T29] ? nmi_trigger_cpumask_backtrace+0x251/0x320 [ 287.652053][ T29] watchdog+0xfef/0xff0 [ 287.656239][ T29] ? watchdog+0x1ea/0xff0 [ 287.660596][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.665332][ T29] kthread+0x2f2/0x390 [ 287.669440][ T29] ? __pfx_watchdog+0x10/0x10 [ 287.674151][ T29] ? __pfx_kthread+0x10/0x10 [ 287.678761][ T29] ret_from_fork+0x4d/0x80 [ 287.683199][ T29] ? __pfx_kthread+0x10/0x10 [ 287.687805][ T29] ret_from_fork_asm+0x1a/0x30 [ 287.692606][ T29] [ 287.695848][ T29] Kernel Offset: disabled [ 287.700183][ T29] Rebooting in 86400 seconds..