[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.1.139' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program syzkaller login: [ 36.421698] XFS (loop0): Mounting V4 Filesystem [ 36.430782] XFS (loop0): totally zeroed log [ 36.437017] XFS (loop1): Mounting V4 Filesystem [ 36.446287] XFS (loop1): totally zeroed log [ 36.452628] XFS (loop5): Mounting V4 Filesystem [ 36.458874] XFS (loop5): totally zeroed log [ 36.464605] XFS (loop5): Ending clean mount [ 36.473424] XFS (loop0): Ending clean mount [ 36.475241] XFS (loop2): Mounting V4 Filesystem [ 36.490896] XFS (loop5): Quotacheck needed: Please wait. [ 36.500734] XFS (loop1): Ending clean mount [ 36.505864] XFS (loop2): totally zeroed log [ 36.513455] XFS (loop0): Quotacheck needed: Please wait. [ 36.516955] XFS (loop2): Ending clean mount [ 36.531850] XFS (loop2): Quotacheck needed: Please wait. [ 36.533010] XFS (loop1): Quotacheck needed: Please wait. [ 36.552810] XFS (loop0): Quotacheck: Done. [ 36.554685] XFS (loop5): Quotacheck: Done. [ 36.564265] XFS (loop4): Mounting V4 Filesystem [ 36.577159] attempt to access beyond end of device [ 36.577505] XFS (loop2): Quotacheck: Done. [ 36.583761] XFS (loop4): totally zeroed log [ 36.589877] XFS (loop1): Quotacheck: Done. [ 36.598786] XFS (loop3): Mounting V4 Filesystem [ 36.606509] attempt to access beyond end of device [ 36.613077] loop0: rw=399361, want=65600, limit=65536 [ 36.613808] attempt to access beyond end of device [ 36.623193] XFS (loop4): Ending clean mount [ 36.627485] attempt to access beyond end of device [ 36.634059] XFS (loop3): totally zeroed log [ 36.637881] loop5: rw=399361, want=65600, limit=65536 [ 36.638594] XFS (loop0): metadata I/O error in "xlog_iodone" at daddr 0x10000 len 64 error 5 [ 36.645317] XFS (loop5): metadata I/O error in "xlog_iodone" at daddr 0x10000 len 64 error 5 [ 36.652939] XFS (loop0): xfs_do_force_shutdown(0x2) called from line 1271 of file fs/xfs/xfs_log.c. Return address = 00000000c0de336e [ 36.661169] XFS (loop5): xfs_do_force_shutdown(0x2) called from line 1271 of file fs/xfs/xfs_log.c. Return address = 00000000c0de336e [ 36.676206] XFS (loop0): Log I/O Error Detected. Shutting down filesystem [ 36.688700] XFS (loop5): Log I/O Error Detected. Shutting down filesystem [ 36.692902] XFS (loop0): Please umount the filesystem and rectify the problem(s) [ 36.699775] XFS (loop5): Please umount the filesystem and rectify the problem(s) [ 36.702318] syz-executor398 (8114) used greatest stack depth: 23096 bytes left [ 36.723939] XFS (loop3): Ending clean mount [ 36.729014] loop1: rw=399361, want=65600, limit=65536 executing program [ 36.735087] XFS (loop4): Quotacheck needed: Please wait. [ 36.742235] loop2: rw=399361, want=65600, limit=65536 [ 36.747594] XFS (loop2): metadata I/O error in "xlog_iodone" at daddr 0x10000 len 64 error 5 [ 36.748360] XFS (loop3): Quotacheck needed: Please wait. [ 36.756374] XFS (loop2): xfs_do_force_shutdown(0x2) called from line 1271 of file fs/xfs/xfs_log.c. Return address = 00000000c0de336e [ 36.781313] XFS (loop2): Log I/O Error Detected. Shutting down filesystem [ 36.788499] XFS (loop2): Please umount the filesystem and rectify the problem(s) [ 36.797014] ================================================================== [ 36.804547] BUG: KASAN: use-after-free in __list_del_entry_valid+0xd6/0xf0 [ 36.811576] Read of size 8 at addr ffff8880add7f318 by task kworker/1:2/4385 [ 36.818759] [ 36.820395] CPU: 1 PID: 4385 Comm: kworker/1:2 Not tainted 4.19.211-syzkaller #0 [ 36.827929] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 36.837294] Workqueue: xfs-cil/loop2 xlog_cil_push_work [ 36.842668] Call Trace: [ 36.845271] dump_stack+0x1fc/0x2ef [ 36.848913] print_address_description.cold+0x54/0x219 [ 36.854200] kasan_report_error.cold+0x8a/0x1b9 [ 36.858877] ? __list_del_entry_valid+0xd6/0xf0 [ 36.863561] __asan_report_load8_noabort+0x88/0x90 [ 36.868502] ? __list_del_entry_valid+0xd6/0xf0 [ 36.873177] __list_del_entry_valid+0xd6/0xf0 [ 36.877681] xlog_cil_push.isra.0+0x47c/0x1010 [ 36.882278] ? mark_held_locks+0xf0/0xf0 [ 36.886345] ? xlog_cil_committed+0xec0/0xec0 [ 36.890847] ? lock_acquire+0x170/0x3c0 [ 36.895797] ? debug_object_deactivate+0xfc/0x2e0 [ 36.900652] ? trace_hardirqs_off+0x64/0x200 [ 36.905069] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 36.910184] ? process_one_work+0x77b/0x1570 [ 36.914618] process_one_work+0x864/0x1570 [ 36.918870] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 36.923560] worker_thread+0x64c/0x1130 [ 36.927554] ? __kthread_parkme+0x133/0x1e0 [ 36.931882] ? process_one_work+0x1570/0x1570 [ 36.936380] kthread+0x33f/0x460 [ 36.939752] ? kthread_park+0x180/0x180 [ 36.943734] ret_from_fork+0x24/0x30 [ 36.947459] [ 36.949086] Allocated by task 8109: [ 36.952716] kmem_cache_alloc+0x122/0x370 [ 36.956866] kmem_zone_alloc+0xc0/0x1e0 [ 36.960850] xfs_buf_item_init+0x7c/0x500 [ 36.965002] _xfs_trans_bjoin+0x3f/0x130 [ 36.969071] xfs_trans_getsb+0xab/0x6b0 [ 36.973050] xfs_log_sb+0x40/0x190 [ 36.976592] xfs_qm_qino_alloc+0x3f8/0x950 [ 36.980828] xfs_qm_init_quotainos+0x5cd/0x730 [ 36.985411] xfs_qm_init_quotainfo+0x146/0xd70 [ 36.989997] xfs_qm_mount_quotas+0x55/0x680 [ 36.994325] xfs_mountfs+0x17e2/0x1bf0 [ 36.998213] xfs_fs_fill_super+0xd0e/0x1540 [ 37.002545] mount_bdev+0x2fc/0x3b0 [ 37.006171] mount_fs+0xa3/0x310 [ 37.009544] vfs_kern_mount.part.0+0x68/0x470 [ 37.014056] do_mount+0x115c/0x2f50 [ 37.017688] ksys_mount+0xcf/0x130 [ 37.021240] __x64_sys_mount+0xba/0x150 [ 37.025223] do_syscall_64+0xf9/0x620 [ 37.029120] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 37.034305] [ 37.035934] Freed by task 2836: [ 37.039221] kmem_cache_free+0x7f/0x260 [ 37.043214] xfs_buf_do_callbacks+0x73/0x280 [ 37.047629] xfs_buf_iodone_callbacks+0x10b/0x1240 [ 37.052563] xfs_buf_ioend+0x291/0x6e0 [ 37.056453] xfs_buf_item_unpin+0x4e5/0xab0 [ 37.060778] xfs_trans_committed_bulk+0x181/0x6f0 [ 37.065626] xlog_cil_committed+0x162/0xec0 [ 37.069955] xlog_state_do_callback+0x444/0x840 [ 37.074631] xfs_log_force_umount+0x2ea/0x460 [ 37.079129] xfs_do_force_shutdown+0xa4/0x290 [ 37.083632] xlog_iodone+0x16d/0x210 [ 37.087354] xfs_buf_ioend+0x291/0x6e0 [ 37.091250] process_one_work+0x864/0x1570 [ 37.095488] worker_thread+0x64c/0x1130 [ 37.099465] kthread+0x33f/0x460 [ 37.102835] ret_from_fork+0x24/0x30 [ 37.106540] [ 37.108168] The buggy address belongs to the object at ffff8880add7f2a0 [ 37.108168] which belongs to the cache xfs_buf_item of size 272 [ 37.120933] The buggy address is located 120 bytes inside of [ 37.120933] 272-byte region [ffff8880add7f2a0, ffff8880add7f3b0) [ 37.132808] The buggy address belongs to the page: [ 37.137749] page:ffffea0002b75fc0 count:1 mapcount:0 mapping:ffff88823908cb40 index:0x0 [ 37.145898] flags: 0xfff00000000100(slab) [ 37.150066] raw: 00fff00000000100 ffff8880b0a12548 ffffea0002ae6488 ffff88823908cb40 [ 37.157969] raw: 0000000000000000 ffff8880add7f000 000000010000000c 0000000000000000 [ 37.165847] page dumped because: kasan: bad access detected [ 37.170625] XFS (loop1): metadata I/O error in "xlog_iodone" at daddr 0x10000 len 64 error 5 [ 37.171547] [ 37.171559] Memory state around the buggy address: executing program [ 37.171571] ffff8880add7f200: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc [ 37.171581] ffff8880add7f280: fc fc fc fc fb fb fb fb fb fb fb fb fb fb fb fb [ 37.171591] >ffff8880add7f300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.171596] ^ [ 37.171605] ffff8880add7f380: fb fb fb fb fb fb fc fc fc fc fc fc fc fc fb fb [ 37.171614] ffff8880add7f400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 37.171618] ================================================================== executing program executing program [ 37.171626] Disabling lock debugging due to kernel taint [ 37.180227] XFS (loop1): xfs_do_force_shutdown(0x2) called from line 1271 of file fs/xfs/xfs_log.c. Return address = 00000000c0de336e [ 37.264285] XFS (loop1): Log I/O Error Detected. Shutting down filesystem [ 37.271391] XFS (loop1): Please umount the filesystem and rectify the problem(s) executing program executing program [ 37.889540] Kernel panic - not syncing: panic_on_warn set ... [ 37.889540] [ 37.896971] CPU: 1 PID: 4385 Comm: kworker/1:2 Tainted: G B 4.19.211-syzkaller #0 [ 37.905890] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 37.915286] Workqueue: xfs-cil/loop2 xlog_cil_push_work [ 37.921514] Call Trace: [ 37.924101] dump_stack+0x1fc/0x2ef [ 37.927736] panic+0x26a/0x50e [ 37.931048] ? __warn_printk+0xf3/0xf3 [ 37.934937] ? preempt_schedule_common+0x45/0xc0 [ 37.939699] ? ___preempt_schedule+0x16/0x18 [ 37.944109] ? trace_hardirqs_on+0x55/0x210 [ 37.948438] kasan_end_report+0x43/0x49 [ 37.952432] kasan_report_error.cold+0xa7/0x1b9 [ 37.957098] ? __list_del_entry_valid+0xd6/0xf0 [ 37.961813] __asan_report_load8_noabort+0x88/0x90 [ 37.966747] ? __list_del_entry_valid+0xd6/0xf0 [ 37.971415] __list_del_entry_valid+0xd6/0xf0 [ 37.975913] xlog_cil_push.isra.0+0x47c/0x1010 [ 37.980502] ? mark_held_locks+0xf0/0xf0 [ 37.984568] ? xlog_cil_committed+0xec0/0xec0 [ 37.989154] ? lock_acquire+0x170/0x3c0 [ 37.993137] ? debug_object_deactivate+0xfc/0x2e0 [ 37.997988] ? trace_hardirqs_off+0x64/0x200 [ 38.002399] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 38.007505] ? process_one_work+0x77b/0x1570 [ 38.012012] process_one_work+0x864/0x1570 [ 38.016259] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 38.020958] worker_thread+0x64c/0x1130 [ 38.024958] ? __kthread_parkme+0x133/0x1e0 [ 38.029282] ? process_one_work+0x1570/0x1570 [ 38.033776] kthread+0x33f/0x460 [ 38.037146] ? kthread_park+0x180/0x180 [ 38.041127] ret_from_fork+0x24/0x30 [ 38.045151] Kernel Offset: disabled [ 38.048784] Rebooting in 86400 seconds..