[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.60' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 45.432245] ====================================================== [ 45.432245] WARNING: the mand mount option is being deprecated and [ 45.432245] will be removed in v5.15! [ 45.432245] ====================================================== [ 45.461910] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 45.490012] FAULT_INJECTION: forcing a failure. [ 45.490012] name failslab, interval 1, probability 0, space 0, times 1 [ 45.501912] CPU: 0 PID: 8097 Comm: syz-executor295 Not tainted 4.19.211-syzkaller #0 [ 45.509803] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 45.519251] Call Trace: [ 45.521853] dump_stack+0x1fc/0x2ef [ 45.525481] should_fail.cold+0xa/0xf [ 45.529275] ? setup_fault_attr+0x200/0x200 [ 45.533586] __should_failslab+0x115/0x180 [ 45.537808] should_failslab+0x5/0x10 [ 45.541592] kmem_cache_alloc_trace+0x284/0x380 [ 45.546249] udf_find_entry+0x540/0x1070 [ 45.550313] ? empty_dir+0x7e0/0x7e0 [ 45.554027] ? add_lock_to_list.constprop.0+0x17d/0x330 [ 45.559391] ? save_trace+0xd6/0x290 [ 45.563095] ? udf_get_pblock_virt20+0x30/0x30 [ 45.567660] ? udf_get_pblock+0x134/0x1f0 [ 45.571818] udf_rename+0x2f9/0x1270 [ 45.575525] ? udf_unlink+0x420/0x420 [ 45.579319] ? d_splice_alias+0x4d4/0xc30 [ 45.583462] ? take_dentry_name_snapshot+0x9e/0x140 [ 45.588595] ? lock_acquire+0x170/0x3c0 [ 45.592584] ? lock_two_nondirectories+0xd1/0x110 [ 45.597415] ? down_write_nested+0x36/0x90 [ 45.601638] vfs_rename+0x67e/0x1bc0 [ 45.605352] ? path_openat+0x2df0/0x2df0 [ 45.609427] ? do_raw_spin_unlock+0x171/0x230 [ 45.614006] ? _raw_spin_unlock+0x29/0x40 [ 45.618147] ? security_path_rename+0x1ed/0x2e0 [ 45.622814] do_renameat2+0xb59/0xc70 [ 45.626704] ? do_mknodat.part.0+0x480/0x480 [ 45.631100] ? vfs_write+0x393/0x540 [ 45.634818] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 45.640166] ? trace_hardirqs_off_caller+0x6e/0x210 [ 45.645169] __x64_sys_rename+0x5d/0x80 [ 45.649132] do_syscall_64+0xf9/0x620 [ 45.652919] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 45.658099] RIP: 0033:0x7f973d8cccd9 [ 45.661807] Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 18 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 [ 45.680701] RSP: 002b:00007ffe5da004b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 executing program executing program [ 45.688392] RAX: ffffffffffffffda RBX: 00007ffe5da00540 RCX: 00007f973d8cccd9 [ 45.695656] RDX: 00000000000004c0 RSI: 0000000020000100 RDI: 0000000020000040 [ 45.702912] RBP: 0000000000000002 R08: 0000000000000002 R09: 0000000000003331 [ 45.710171] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe5da004c0 [ 45.717423] R13: 0000000000000001 R14: 0000000000000004 R15: 431bde82d7b634db executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 54.082559] ------------[ cut here ]------------ [ 54.087768] VFS: brelse: Trying to free free buffer [ 54.096440] WARNING: CPU: 0 PID: 54 at fs/buffer.c:1144 __brelse+0x67/0xa0 [ 54.103465] Kernel panic - not syncing: panic_on_warn set ... [ 54.103465] [ 54.110832] CPU: 0 PID: 54 Comm: kworker/u4:2 Not tainted 4.19.211-syzkaller #0 [ 54.118280] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 [ 54.127650] Workqueue: writeback wb_workfn (flush-8:0) [ 54.132964] Call Trace: [ 54.135559] dump_stack+0x1fc/0x2ef [ 54.139192] panic+0x26a/0x50e [ 54.142390] ? __warn_printk+0xf3/0xf3 [ 54.146282] ? __brelse+0x67/0xa0 [ 54.149750] ? __probe_kernel_read+0x130/0x1b0 [ 54.154337] ? __warn.cold+0x5/0x5a [ 54.157961] ? __warn+0xe4/0x200 [ 54.161311] ? __brelse+0x67/0xa0 [ 54.164765] __warn.cold+0x20/0x5a [ 54.168296] ? __brelse+0x67/0xa0 [ 54.171731] report_bug+0x262/0x2b0 [ 54.175340] do_error_trap+0x1d7/0x310 [ 54.179219] ? math_error+0x310/0x310 [ 54.183005] ? __irq_work_queue_local+0x101/0x160 [ 54.187831] ? irq_work_queue+0x29/0x80 [ 54.191799] ? error_entry+0x72/0xd0 [ 54.195495] ? trace_hardirqs_off_caller+0x6e/0x210 [ 54.200493] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 54.205322] invalid_op+0x14/0x20 [ 54.208783] RIP: 0010:__brelse+0x67/0xa0 [ 54.212830] Code: 7c 04 84 d2 75 4e 44 8b 63 60 31 ff 44 89 e6 e8 bf 16 b2 ff 45 85 e4 75 1c e8 45 15 b2 ff 48 c7 c7 e0 1c 75 88 e8 1e 4d 42 06 <0f> 0b 5b 5d 41 5c e9 2e 15 b2 ff e8 29 15 b2 ff be 04 00 00 00 48 [ 54.231810] RSP: 0018:ffff8880b51676c0 EFLAGS: 00010286 [ 54.237156] RAX: 0000000000000000 RBX: ffff8880b5426a80 RCX: 0000000000000000 [ 54.244409] RDX: 0000000000000000 RSI: ffffffff814dff01 RDI: ffffed1016a2ceca [ 54.251665] RBP: ffff8880b5426ae0 R08: 0000000000000001 R09: 0000000000000000 [ 54.258916] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 [ 54.266169] R13: ffff8880ba028860 R14: ffff8880ae32ac78 R15: ffff8880ba0287e0 [ 54.273437] ? vprintk_func+0x81/0x180 [ 54.277320] __find_get_block+0xa28/0xde0 [ 54.281455] __getblk_gfp+0x28/0x70 [ 54.285068] __ext4_get_inode_loc+0x351/0x10f0 [ 54.289639] ? reacquire_held_locks+0xb5/0x430 [ 54.294205] ? do_writepages+0x1f5/0x290 [ 54.298248] ext4_write_inode+0x2ec/0x4d0 [ 54.302390] ? __ext4_iget+0x3d30/0x3d30 [ 54.306442] __writeback_single_inode+0x733/0x11d0 [ 54.311354] writeback_sb_inodes+0x537/0xef0 [ 54.315759] ? wbc_detach_inode+0x840/0x840 [ 54.320080] ? down_read_trylock+0x4e/0x90 [ 54.324296] ? trylock_super+0x1d/0x100 [ 54.328252] __writeback_inodes_wb+0xc6/0x280 [ 54.332746] wb_writeback+0x841/0xcc0 [ 54.336545] ? writeback_inodes_wb.constprop.0+0x1d0/0x1d0 [ 54.342152] ? cpumask_next+0x3c/0x40 [ 54.345941] ? get_nr_dirty_inodes+0x19e/0x210 [ 54.350511] wb_workfn+0x8ba/0x1250 [ 54.354129] ? inode_wait_for_writeback+0x30/0x30 [ 54.358960] process_one_work+0x864/0x1570 [ 54.365710] ? pwq_dec_nr_in_flight+0x2d0/0x2d0 [ 54.370388] worker_thread+0x64c/0x1130 [ 54.374374] ? process_one_work+0x1570/0x1570 [ 54.379320] kthread+0x33f/0x460 [ 54.382671] ? kthread_park+0x180/0x180 [ 54.386629] ret_from_fork+0x24/0x30 [ 54.390783] Kernel Offset: disabled [ 54.394447] Rebooting in 86400 seconds..