Warning: Permanently added '10.128.10.11' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 856.037573] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 [ 856.055251] BTRFS info (device loop0): using free space tree [ 856.061296] BTRFS info (device loop0): has skinny extents [ 856.096828] FAULT_INJECTION: forcing a failure. [ 856.096828] name failslab, interval 1, probability 0, space 0, times 1 [ 856.109556] CPU: 0 PID: 8096 Comm: syz-executor850 Not tainted 4.19.211-syzkaller #0 [ 856.117459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 856.126811] Call Trace: [ 856.129385] dump_stack+0x1fc/0x2ef [ 856.133009] should_fail.cold+0xa/0xf [ 856.136817] ? setup_fault_attr+0x200/0x200 [ 856.141126] __should_failslab+0x115/0x180 [ 856.145351] should_failslab+0x5/0x10 [ 856.149135] kmem_cache_alloc+0x277/0x370 [ 856.153275] btrfs_alloc_tree_block+0xfbe/0x15f0 [ 856.158490] ? btrfs_reserve_extent+0x440/0x440 [ 856.163147] ? deref_stack_reg+0x134/0x1d0 [ 856.167376] ? __read_once_size_nocheck.constprop.0+0x10/0x10 [ 856.173251] ? mark_held_locks+0xf0/0xf0 [ 856.177299] alloc_tree_block_no_bg_flush+0x1b6/0x250 [ 856.182476] __btrfs_cow_block+0x3c7/0x10a0 [ 856.186781] ? update_ref_for_cow+0xaf0/0xaf0 [ 856.191265] ? btrfs_tree_read_unlock_blocking+0x290/0x290 [ 856.196877] btrfs_cow_block+0x276/0x840 [ 856.200922] btrfs_search_slot+0x66a/0x1ee0 [ 856.205229] ? split_leaf+0x1240/0x1240 [ 856.209187] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 856.214361] ? depot_save_stack+0x258/0x410 [ 856.218668] ? crc32c_pcl_intel_update+0x1b9/0x320 [ 856.223585] btrfs_insert_empty_items+0xba/0x180 [ 856.228327] insert_with_overflow+0xba/0x270 [ 856.232716] ? btrfs_match_dir_item_name+0x1e0/0x1e0 [ 856.237800] ? crc32c+0x2e/0x1f0 [ 856.241149] btrfs_insert_xattr_item+0x188/0x3c0 [ 856.245891] ? insert_with_overflow+0x270/0x270 [ 856.250541] ? should_fail+0x142/0x7b0 [ 856.254538] ? setup_fault_attr+0x200/0x200 [ 856.258869] ? __mutex_unlock_slowpath+0xea/0x610 [ 856.263708] ? check_preemption_disabled+0x41/0x280 [ 856.268710] ? do_setxattr+0x10b/0x980 [ 856.272669] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 856.277665] do_setxattr+0x2e5/0x980 [ 856.281367] btrfs_setxattr+0x12f/0x2a0 [ 856.285333] __btrfs_set_acl+0x208/0x340 [ 856.289378] btrfs_set_acl+0xef/0x180 [ 856.293161] ? btrfs_get_acl+0x180/0x180 [ 856.297202] ? posix_acl_alloc+0x20/0xb0 [ 856.301264] ? posix_acl_valid+0x15d/0x300 [ 856.305481] set_posix_acl+0x220/0x2d0 [ 856.309349] ? set_posix_acl+0x2d0/0x2d0 [ 856.313389] posix_acl_xattr_set+0x90/0x140 [ 856.317691] __vfs_setxattr+0x10e/0x170 [ 856.321645] ? xattr_resolve_name+0x3d0/0x3d0 [ 856.326122] ? evm_protect_xattr.constprop.0+0x99/0x3d0 [ 856.331466] __vfs_setxattr_noperm+0x11a/0x420 [ 856.336030] __vfs_setxattr_locked+0x176/0x250 [ 856.340594] vfs_setxattr+0xe5/0x270 [ 856.344289] ? __vfs_setxattr_locked+0x250/0x250 [ 856.349035] ? __might_fault+0x192/0x1d0 [ 856.353079] setxattr+0x23d/0x330 [ 856.356514] ? vfs_setxattr+0x270/0x270 [ 856.360473] ? filename_lookup+0x3d5/0x5a0 [ 856.364697] ? lock_acquire+0x170/0x3c0 [ 856.368658] ? __phys_addr_symbol+0x2c/0x70 [ 856.372965] ? __check_object_size+0x17b/0x3e0 [ 856.377533] ? check_preemption_disabled+0x41/0x280 [ 856.382534] ? preempt_count_add+0xaf/0x190 [ 856.386836] ? __mnt_want_write+0x22c/0x2c0 [ 856.391137] path_setxattr+0x170/0x190 [ 856.395004] ? __se_sys_fsetxattr+0x1b0/0x1b0 [ 856.399481] ? ksys_write+0x1c8/0x2a0 [ 856.403267] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 856.408612] __x64_sys_lsetxattr+0xbd/0x150 [ 856.412921] ? lockdep_hardirqs_on+0x3a8/0x5c0 [ 856.417486] do_syscall_64+0xf9/0x620 [ 856.421272] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 856.426528] RIP: 0033:0x7f4a189bda69 [ 856.430226] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 11 15 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 c0 ff ff ff f7 d8 64 89 01 48 [ 856.449111] RSP: 002b:00007ffd3ad9d9e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000bd [ 856.456802] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4a189bda69 [ 856.464052] RDX: 0000000020000500 RSI: 00000000200000c0 RDI: 0000000020000040 [ 856.471390] RBP: 00007ffd3ad9da10 R08: 0000000000000000 R09: 00007ffd3ad9da20 [ 856.478651] R10: 0000000000000024 R11: 0000000000000246 R12: 0000000000000004 [ 856.486072] R13: 00007ffd3ad9da50 R14: 00007ffd3ad9da30 R15: 0000000000000000 [ 1004.471157] INFO: task syz-executor850:8095 blocked for more than 140 seconds. [ 1004.478594] Not tainted 4.19.211-syzkaller #0 [ 1004.484283] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 1004.492343] syz-executor850 D27944 8095 8093 0x00000000 [ 1004.497974] Call Trace: [ 1004.500543] __schedule+0x887/0x2040 [ 1004.504307] ? io_schedule_timeout+0x140/0x140 [ 1004.508986] ? prepare_to_wait_exclusive+0x2d0/0x2d0 [ 1004.514153] schedule+0x8d/0x1b0 [ 1004.517512] btrfs_tree_lock+0x4fe/0x810 [ 1004.521620] ? btrfs_tree_read_unlock_blocking+0x290/0x290 [ 1004.527244] ? btrfs_dec_block_group_reservations+0x7c/0xb0 [ 1004.533012] ? wait_woken+0x250/0x250 [ 1004.536816] btrfs_alloc_tree_block+0x9b1/0x15f0 [ 1004.541635] ? btrfs_reserve_extent+0x440/0x440 [ 1004.546297] ? depot_save_stack+0x258/0x410 [ 1004.550714] ? mark_held_locks+0xf0/0xf0 [ 1004.554865] alloc_tree_block_no_bg_flush+0x1b6/0x250 [ 1004.560060] __btrfs_cow_block+0x3c7/0x10a0 [ 1004.564436] ? update_ref_for_cow+0xaf0/0xaf0 [ 1004.568937] ? btrfs_tree_read_unlock_blocking+0x290/0x290 [ 1004.574627] btrfs_cow_block+0x276/0x840 [ 1004.578693] btrfs_search_slot+0x66a/0x1ee0 [ 1004.583062] ? __btrfs_run_delayed_refs+0x2af6/0x3de0 [ 1004.588260] ? split_leaf+0x1240/0x1240 [ 1004.592295] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 1004.597314] btrfs_update_root+0xc9/0x6b0 [ 1004.601504] ? btrfs_init_free_ino_ctl+0x330/0x330 [ 1004.606440] ? btrfs_set_root_node+0x240/0x240 [ 1004.611084] ? radix_tree_tag_clear+0x193/0x2f0 [ 1004.615750] commit_fs_roots+0x3b5/0x530 [ 1004.619794] ? btrfs_commit_transaction+0x8c2/0x2480 [ 1004.624941] ? mutex_trylock+0x1a0/0x1a0 [ 1004.629006] ? btrfs_trans_release_metadata+0x480/0x480 [ 1004.634517] ? lock_acquire+0x170/0x3c0 [ 1004.638493] ? btrfs_first_delayed_node+0x18/0x80 [ 1004.643379] ? do_raw_spin_unlock+0x171/0x230 [ 1004.647877] ? _raw_spin_unlock+0x29/0x40 [ 1004.652087] btrfs_commit_transaction+0x8ca/0x2480 [ 1004.657012] ? join_transaction+0x1b7/0xe20 [ 1004.661377] ? btrfs_apply_pending_changes+0x150/0x150 [ 1004.666657] ? start_transaction+0x239/0xf90 [ 1004.671135] btrfs_sync_fs+0x120/0x490 [ 1004.675020] ? btrfs_freeze+0xc0/0xc0 [ 1004.678802] sync_filesystem+0x1b5/0x250 [ 1004.682907] generic_shutdown_super+0x70/0x370 [ 1004.687489] kill_anon_super+0x36/0x60 [ 1004.691427] btrfs_kill_super+0x49/0x550 [ 1004.695481] ? unregister_shrinker+0x1cb/0x300 [ 1004.700045] deactivate_locked_super+0x94/0x160 [ 1004.704762] deactivate_super+0x174/0x1a0 [ 1004.708911] ? deactivate_locked_super+0x160/0x160 [ 1004.713900] ? dput+0x31/0x640 [ 1004.717084] cleanup_mnt+0x1a8/0x290 [ 1004.720782] task_work_run+0x148/0x1c0 [ 1004.724715] exit_to_usermode_loop+0x251/0x2a0 [ 1004.729297] do_syscall_64+0x538/0x620 [ 1004.733241] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1004.738421] RIP: 0033:0x7f4a189bee07 [ 1004.742174] Code: Bad RIP value. [ 1004.745530] RSP: 002b:00007ffd3ad9c8f8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a6 [ 1004.753288] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4a189bee07 [ 1004.762604] RDX: 00007ffd3ad9c9b9 RSI: 000000000000000a RDI: 00007ffd3ad9c9b0 [ 1004.769864] RBP: 00007ffd3ad9c9b0 R08: 00000000ffffffff R09: 00007ffd3ad9c790 [ 1004.777188] R10: 00005555570c1683 R11: 0000000000000202 R12: 00007ffd3ad9da30 [ 1004.784505] R13: 00005555570c15f0 R14: 00007ffd3ad9c920 R15: 0000000000000001 [ 1004.791864] [ 1004.791864] Showing all locks held in the system: [ 1004.798190] 1 lock held by khungtaskd/1572: [ 1004.802551] #0: 00000000e5bded73 (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 [ 1004.811240] 1 lock held by in:imklog/7779: [ 1004.815973] #0: 0000000060280a2d (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 [ 1004.823988] 3 locks held by syz-executor850/8095: [ 1004.828820] #0: 0000000094d51bf5 (&type->s_umount_key#47){+.+.}, at: deactivate_super+0x16c/0x1a0 [ 1004.837989] #1: 00000000400a96fd (&fs_info->reloc_mutex){+.+.}, at: btrfs_commit_transaction+0x80b/0x2480 [ 1004.847845] #2: 00000000729c1ffc (&fs_info->tree_log_mutex){+.+.}, at: btrfs_commit_transaction+0x8c2/0x2480 [ 1004.858072] 1 lock held by btrfs-transacti/8125: [ 1004.862867] #0: 00000000f0fd5e02 (&fs_info->transaction_kthread_mutex){+.+.}, at: transaction_kthread+0xfa/0x490 [ 1004.873335] [ 1004.874951] ============================================= [ 1004.874951] [ 1004.882014] NMI backtrace for cpu 0 [ 1004.885628] CPU: 0 PID: 1572 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 1004.893058] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 1004.902390] Call Trace: [ 1004.904969] dump_stack+0x1fc/0x2ef [ 1004.908592] nmi_cpu_backtrace.cold+0x63/0xa2 [ 1004.913186] ? lapic_can_unplug_cpu+0x80/0x80 [ 1004.917671] nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 [ 1004.922932] watchdog+0x991/0xe60 [ 1004.926370] ? reset_hung_task_detector+0x30/0x30 [ 1004.931198] kthread+0x33f/0x460 [ 1004.934549] ? kthread_park+0x180/0x180 [ 1004.938506] ret_from_fork+0x24/0x30 [ 1004.942293] Sending NMI from CPU 0 to CPUs 1: [ 1004.947255] NMI backtrace for cpu 1 [ 1004.947261] CPU: 1 PID: 4694 Comm: systemd-journal Not tainted 4.19.211-syzkaller #0 [ 1004.947267] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 1004.947272] RIP: 0010:__sanitizer_cov_trace_pc+0x22/0x50 [ 1004.947282] Code: 90 90 90 90 90 90 90 90 48 8b 34 24 65 48 8b 04 25 c0 df 01 00 65 8b 15 cc 59 9f 7e 81 e2 00 01 1f 00 75 2b 8b 90 60 13 00 00 <83> fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13 00 00 48 8b 11 48 [ 1004.947286] RSP: 0018:ffff8880a0fbfa28 EFLAGS: 00000246 [ 1004.947294] RAX: ffff8880a0fb6600 RBX: dffffc0000000000 RCX: ffffffff816c5cc8 [ 1004.947299] RDX: 0000000000000000 RSI: ffffffff816c36e5 RDI: ffffc90001b2e072 [ 1004.947304] RBP: ffff8880a0fbfb00 R08: 0000000000000000 R09: 0000000000000027 [ 1004.947309] R10: 0000000000000006 R11: 0000000000000000 R12: ffffffff886fb460 [ 1004.947313] R13: ffffed10141f7f62 R14: ffffc90001b2e1e0 R15: 0000000040000000 [ 1004.947319] FS: 00007fe35bb858c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 1004.947323] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 1004.947328] CR2: 00007fe358ec7000 CR3: 00000000a08cd000 CR4: 00000000003406e0 [ 1004.947333] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1004.947338] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1004.947341] Call Trace: [ 1004.947344] ___bpf_prog_run+0x45/0x4e80 [ 1004.947348] ? is_console_locked+0x10/0x10 [ 1004.947351] ? __bpf_prog_run32+0x8f/0xd0 [ 1004.947355] ? __bpf_prog_run64+0xd0/0xd0 [ 1004.947358] ? lock_downgrade+0x720/0x720 [ 1004.947362] ? __lock_acquire+0x6de/0x3ff0 [ 1004.947365] ? seccomp_run_filters+0x124/0x590 [ 1004.947369] ? __put_seccomp_filter+0xa0/0xa0 [ 1004.947372] ? mark_held_locks+0xf0/0xf0 [ 1004.947376] ? mark_held_locks+0xf0/0xf0 [ 1004.947379] ? __seccomp_filter+0x93/0xca0 [ 1004.947383] ? seccomp_send_sigsys+0x1c0/0x1c0 [ 1004.947386] ? __might_fault+0x11f/0x1d0 [ 1004.947390] ? lock_downgrade+0x720/0x720 [ 1004.947393] ? lock_acquire+0x170/0x3c0 [ 1004.947397] ? __might_fault+0xef/0x1d0 [ 1004.947400] ? __might_fault+0x192/0x1d0 [ 1004.947404] ? __secure_computing+0xfc/0x360 [ 1004.947407] ? syscall_trace_enter+0x563/0xd60 [ 1004.947411] ? ns_to_timespec64+0x78/0xb0 [ 1004.947415] ? syscall_slow_exit_work+0x630/0x630 [ 1004.947419] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 1004.947423] ? trace_hardirqs_off_caller+0x6e/0x210 [ 1004.947426] ? do_syscall_64+0x21/0x620 [ 1004.947430] ? do_syscall_64+0x486/0x620 [ 1004.947434] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 1004.947795] Kernel panic - not syncing: hung_task: blocked tasks [ 1005.192104] CPU: 0 PID: 1572 Comm: khungtaskd Not tainted 4.19.211-syzkaller #0 [ 1005.199543] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 1005.208964] Call Trace: [ 1005.211540] dump_stack+0x1fc/0x2ef [ 1005.215154] panic+0x26a/0x50e [ 1005.218329] ? __warn_printk+0xf3/0xf3 [ 1005.222197] ? _raw_spin_unlock_irqrestore+0x79/0xe0 [ 1005.227284] ? cpumask_next+0x3c/0x40 [ 1005.231063] ? printk_safe_flush+0xd6/0x120 [ 1005.235363] ? watchdog+0x991/0xe60 [ 1005.238967] ? nmi_trigger_cpumask_backtrace+0x15e/0x1f0 [ 1005.244399] watchdog+0x9a2/0xe60 [ 1005.247837] ? reset_hung_task_detector+0x30/0x30 [ 1005.252662] kthread+0x33f/0x460 [ 1005.256005] ? kthread_park+0x180/0x180 [ 1005.259959] ret_from_fork+0x24/0x30 [ 1005.263957] Kernel Offset: disabled [ 1005.267569] Rebooting in 86400 seconds..