[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.180' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 29.695799] ====================================================== [ 29.695799] WARNING: the mand mount option is being deprecated and [ 29.695799] will be removed in v5.15! [ 29.695799] ====================================================== [ 29.720927] EXT4-fs (loop0): Quota format mount options ignored when QUOTA feature is enabled [ 29.729879] EXT4-fs: Warning: mounting with data=journal disables delayed allocation and O_DIRECT support! [ 29.741231] EXT4-fs (loop0): orphan cleanup on readonly fs [ 29.750516] ------------[ cut here ]------------ [ 29.755324] WARNING: CPU: 0 PID: 7970 at fs/ext4/mballoc.c:1560 mb_find_extent+0x5a2/0xa30 [ 29.763711] Kernel panic - not syncing: panic_on_warn set ... [ 29.763711] [ 29.771051] CPU: 0 PID: 7970 Comm: syz-executor455 Not tainted 4.14.302-syzkaller #0 [ 29.778910] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 29.788242] Call Trace: [ 29.790811] dump_stack+0x1b2/0x281 [ 29.794423] panic+0x1f9/0x42d [ 29.797593] ? add_taint.cold+0x16/0x16 [ 29.801558] ? mb_find_extent+0x5a2/0xa30 [ 29.805692] ? mb_find_extent+0x5a2/0xa30 [ 29.809926] __warn.cold+0x20/0x44 [ 29.813559] ? ist_end_non_atomic+0x10/0x10 [ 29.817857] ? mb_find_extent+0x5a2/0xa30 [ 29.821984] report_bug+0x208/0x250 [ 29.825592] do_error_trap+0x195/0x2d0 [ 29.829471] ? math_error+0x2d0/0x2d0 [ 29.833254] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 29.838594] ? __save_stack_trace+0xa0/0x160 [ 29.842982] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 29.847801] invalid_op+0x1b/0x40 [ 29.851244] RIP: 0010:mb_find_extent+0x5a2/0xa30 [ 29.855980] RSP: 0018:ffff8880b3b16a40 EFLAGS: 00010297 [ 29.861322] RAX: ffff8880b2c3e100 RBX: 0000000000000029 RCX: ffff8880b3152900 [ 29.868572] RDX: 0000000000000000 RSI: dffffc0000000000 RDI: ffff8880b3152918 [ 29.875822] RBP: ffff8880b3b16c88 R08: 1ffff1101662a523 R09: 0000000000000005 [ 29.883068] R10: 0000000000000000 R11: ffff8880b2c3e100 R12: 0000000000000000 [ 29.890333] R13: ffff8880b3b16b80 R14: ffff8880b3b16b8c R15: 0000000000000041 [ 29.897599] ? mb_find_order_for_block+0x140/0x140 [ 29.902508] ? find_get_entry+0x339/0x630 [ 29.906631] ? _find_next_bit+0xdb/0x100 [ 29.910669] ext4_mb_complex_scan_group+0x2c3/0x810 [ 29.915671] ? ext4_mb_check_limits+0x3f0/0x3f0 [ 29.920316] ext4_mb_regular_allocator+0x82b/0xe70 [ 29.925232] ? ext4_mb_try_best_found.isra.0+0x490/0x490 [ 29.930661] ext4_mb_new_blocks+0x1969/0x3db0 [ 29.935132] ? ext4_find_extent+0x6f7/0xbc0 [ 29.939446] ? ext4_ext_search_right+0x2bc/0xaa0 [ 29.944176] ? ext4_ext_next_allocated_block+0x1ff/0x2b0 [ 29.949600] ext4_ext_map_blocks+0x2845/0x6b10 [ 29.954158] ? __lock_acquire+0x5fc/0x3f20 [ 29.958372] ? ext4_find_delalloc_cluster+0x180/0x180 [ 29.963533] ? trace_hardirqs_on+0x10/0x10 [ 29.967758] ? __save_stack_trace+0x63/0x160 [ 29.972147] ? ext4_es_lookup_extent+0x321/0xac0 [ 29.976882] ? lock_acquire+0x170/0x3f0 [ 29.980840] ext4_map_blocks+0x675/0x1730 [ 29.984987] ? ext4_issue_zeroout+0x150/0x150 [ 29.989463] ? kasan_kmalloc+0xeb/0x160 [ 29.993416] ? __kmalloc+0x15a/0x400 [ 29.997103] ? getdqbuf+0x17/0x30 [ 30.000532] ? get_free_dqblk+0x41/0x330 [ 30.004566] ? do_insert_tree+0xe85/0x1060 [ 30.008773] ? do_insert_tree+0xe85/0x1060 [ 30.012979] ? qtree_write_dquot+0x18a/0x4e0 [ 30.017364] ? v2_write_dquot+0x10f/0x240 [ 30.021486] ? dquot_acquire+0x220/0x470 [ 30.025522] ext4_getblk+0x98/0x420 [ 30.029122] ? do_mount+0xe65/0x2a30 [ 30.032808] ? SyS_mount+0xa8/0x120 [ 30.036411] ? ext4_iomap_begin+0x7f0/0x7f0 [ 30.040705] ? vfs_kern_mount.part.0+0x5b/0x470 [ 30.045381] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 30.050723] ext4_bread+0x6c/0x1b0 [ 30.054240] ? ext4_getblk+0x420/0x420 [ 30.058101] ? do_insert_tree+0xe85/0x1060 [ 30.062310] ? qtree_write_dquot+0x18a/0x4e0 [ 30.066690] ? v2_write_dquot+0x10f/0x240 [ 30.070910] ? dquot_acquire+0x220/0x470 [ 30.074969] ? ext4_acquire_dquot+0x1b8/0x290 [ 30.080442] ext4_quota_write+0x187/0x420 [ 30.084571] ? ext4_quota_on+0x9c0/0x9c0 [ 30.088608] ? ext4_quota_on+0x9c0/0x9c0 [ 30.092649] write_blk+0x106/0x1e0 [ 30.096168] get_free_dqblk+0xf3/0x330 [ 30.100032] do_insert_tree+0x34b/0x1060 [ 30.104072] ? from_kgid+0x77/0xa0 [ 30.107587] ? make_kgid+0x20/0x20 [ 30.111102] ? kfree+0x14a/0x250 [ 30.114445] ? get_free_dqblk+0x196/0x330 [ 30.118567] ? qtree_release_dquot+0x180/0x180 [ 30.123123] ? qid_valid+0xe0/0xe0 [ 30.126637] do_insert_tree+0xe85/0x1060 [ 30.130698] ? get_free_dqblk+0x196/0x330 [ 30.134820] ? qtree_release_dquot+0x180/0x180 [ 30.139374] ? qid_valid+0xe0/0xe0 [ 30.142888] do_insert_tree+0xe85/0x1060 [ 30.146927] ? qtree_release_dquot+0x180/0x180 [ 30.151496] ? qid_valid+0xe0/0xe0 [ 30.155013] do_insert_tree+0xe85/0x1060 [ 30.159051] ? rcu_lockdep_current_cpu_online+0xed/0x140 [ 30.164478] ? qtree_release_dquot+0x180/0x180 [ 30.169033] ? __kmalloc+0x3a4/0x400 [ 30.172737] qtree_write_dquot+0x18a/0x4e0 [ 30.176971] ? do_insert_tree+0x1060/0x1060 [ 30.181271] v2_write_dquot+0x10f/0x240 [ 30.185222] dquot_acquire+0x220/0x470 [ 30.189082] ? ext4_acquire_dquot+0x1a0/0x290 [ 30.193551] ext4_acquire_dquot+0x1b8/0x290 [ 30.197845] dqget+0x6a0/0xe90 [ 30.201012] ? dquot_writeback_dquots+0x650/0x650 [ 30.205828] __dquot_initialize+0x2fb/0xa70 [ 30.210127] ? dquot_initialize_needed+0x240/0x240 [ 30.215030] ? ext4_can_truncate+0x58/0x90 [ 30.219240] ? ext4_orphan_get+0xfe/0x510 [ 30.223364] ext4_fill_super+0x7261/0xb3c0 [ 30.227582] ? ext4_calculate_overhead+0x10b0/0x10b0 [ 30.232657] ? lock_downgrade+0x740/0x740 [ 30.236781] ? snprintf+0xa5/0xd0 [ 30.240214] ? ns_test_super+0x50/0x50 [ 30.244076] ? set_blocksize+0x125/0x380 [ 30.248117] mount_bdev+0x2b3/0x360 [ 30.251718] ? ext4_calculate_overhead+0x10b0/0x10b0 [ 30.256795] mount_fs+0x92/0x2a0 [ 30.260137] vfs_kern_mount.part.0+0x5b/0x470 [ 30.264611] do_mount+0xe65/0x2a30 [ 30.268125] ? retint_kernel+0x2d/0x2d [ 30.271985] ? copy_mount_string+0x40/0x40 [ 30.276198] ? memset+0x20/0x40 [ 30.279452] ? copy_mount_options+0x1fa/0x2f0 [ 30.283919] ? copy_mnt_ns+0xa30/0xa30 [ 30.287781] SyS_mount+0xa8/0x120 [ 30.291211] ? copy_mnt_ns+0xa30/0xa30 [ 30.295088] do_syscall_64+0x1d5/0x640 [ 30.298959] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 30.304253] RIP: 0033:0x7f2cdbb56c3a [ 30.307951] RSP: 002b:00007fffcab1e078 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 [ 30.315636] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2cdbb56c3a [ 30.322884] RDX: 0000000020000040 RSI: 0000000020000500 RDI: 00007fffcab1e080 [ 30.330145] RBP: 00007fffcab1e080 R08: 00007fffcab1e0c0 R09: 0000000000002dd1 [ 30.337396] R10: 0000000000000047 R11: 0000000000000206 R12: 0000000000000004 [ 30.344643] R13: 000055555568c2c0 R14: 00007fffcab1e0c0 R15: 0000000000000000 [ 30.352240] Kernel Offset: disabled [ 30.355886] Rebooting in 86400 seconds..