[ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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 '10.128.0.139' (ECDSA) to the list of known hosts. syzkaller login: [ 32.487446] IPVS: ftp: loaded support on port[0] = 21 executing program [ 32.587360] EXT4-fs (loop0): mounting with "discard" option, but the device does not support discard [ 32.597484] EXT4-fs (loop0): mounted filesystem without journal. Opts: quota,data_err=abort,max_dir_size_kb=0x0000000000000005,abort,journal_ioprio=0x0000000000000000,journal_ioprio=0x0000000000000006,errors=remount-ro,block_validity,abort, [ 32.628116] EXT4-fs error (device loop0): __ext4_new_inode:921: comm syz-executor378: reserved inode found cleared - inode=1 [ 32.640975] EXT4-fs (loop0): Remounting filesystem read-only [ 32.651398] ------------[ cut here ]------------ [ 32.656271] kernel BUG at fs/ext4/inode.c:989! [ 32.663903] invalid opcode: 0000 [#1] PREEMPT SMP KASAN [ 32.669278] CPU: 0 PID: 8128 Comm: syz-executor378 Not tainted 4.19.211-syzkaller #0 [ 32.677136] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 [ 32.686480] RIP: 0010:ext4_getblk+0x454/0x4f0 [ 32.691045] Code: 0b e8 e0 24 83 ff 4c 89 e7 e8 d8 d8 d0 ff e9 b0 fd ff ff e8 ce 24 83 ff 4c 89 e7 e8 26 d9 d0 ff e9 ef fe ff ff e8 bc 24 83 ff <0f> 0b e8 45 45 58 ff 48 89 34 24 e8 9c 01 b9 ff 48 8b 34 24 e9 bb [ 32.710011] RSP: 0018:ffff888091e37158 EFLAGS: 00010293 [ 32.715353] RAX: ffff88809509e600 RBX: 0000000000000005 RCX: ffffffff81df6031 [ 32.722601] RDX: 0000000000000000 RSI: ffffffff81df60b4 RDI: 0000000000000005 [ 32.729851] RBP: 1ffff110123c6e2d R08: 0000000000001400 R09: 0000000000000000 [ 32.737102] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000021 [ 32.744346] R13: 0000000000000000 R14: ffff88808b0538f0 R15: 0000000000000001 [ 32.751598] FS: 00005555565a2300(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 [ 32.759803] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 32.765679] CR2: 00007f8f3d800290 CR3: 00000000a4793000 CR4: 00000000003406f0 [ 32.772930] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 32.780179] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 32.787496] Call Trace: [ 32.790067] ? ext4_iomap_begin+0xe00/0xe00 [ 32.794375] ? __getblk_gfp+0x48/0x70 [ 32.798243] ext4_bread+0x7c/0x210 [ 32.801767] ? ext4_getblk+0x4f0/0x4f0 [ 32.805641] ext4_quota_write+0x205/0x530 [ 32.809765] ? ext4_quota_on+0xa30/0xa30 [ 32.813806] ? __brelse+0x84/0xa0 [ 32.817249] ? ext4_quota_on+0xa30/0xa30 [ 32.821289] write_blk+0x10a/0x200 [ 32.824806] remove_tree+0x927/0x1490 [ 32.828697] ? qtree_read_dquot+0x700/0x700 [ 32.832996] ? qid_valid+0x130/0x130 [ 32.836690] ? ext4_quota_read+0x266/0x2e0 [ 32.840920] remove_tree+0x278/0x1490 [ 32.844700] ? qtree_read_dquot+0x700/0x700 [ 32.848999] ? qid_valid+0x130/0x130 [ 32.852690] ? ext4_quota_read+0x266/0x2e0 [ 32.856909] remove_tree+0x278/0x1490 [ 32.860688] ? qtree_read_dquot+0x700/0x700 [ 32.864986] ? qid_valid+0x130/0x130 [ 32.868677] ? ext4_quota_read+0x266/0x2e0 [ 32.872891] remove_tree+0x278/0x1490 [ 32.876678] ? qtree_read_dquot+0x700/0x700 [ 32.880985] ? dquot_release+0x4d/0x390 [ 32.884946] ? mutex_trylock+0x1a0/0x1a0 [ 32.888987] qtree_release_dquot+0x195/0x1d0 [ 32.893375] ? qtree_delete_dquot+0x100/0x100 [ 32.897851] v2_release_dquot+0xce/0x120 [ 32.901920] dquot_release+0x1be/0x390 [ 32.905799] ? v2_get_next_id+0xb0/0xb0 [ 32.909759] ext4_release_dquot+0x22f/0x290 [ 32.914062] dqput.part.0+0x1a3/0x830 [ 32.917843] __dquot_drop+0x19c/0x270 [ 32.921624] ? dquot_scan_active+0x310/0x310 [ 32.926013] ? mark_held_locks+0xa6/0xf0 [ 32.930053] ? _raw_spin_unlock_irq+0x24/0x80 [ 32.934528] dquot_drop+0x14b/0x1a0 [ 32.938149] ext4_clear_inode+0x31/0x1d0 [ 32.942195] ext4_evict_inode+0x25b/0x17b0 [ 32.946422] ? ext4_journalled_write_end+0x1450/0x1450 [ 32.951681] ? ext4_journalled_write_end+0x1450/0x1450 [ 32.956935] evict+0x2ed/0x760 [ 32.960108] dispose_list+0x124/0x1f0 [ 32.964067] evict_inodes+0x3ad/0x430 [ 32.967934] ? dispose_list+0x1f0/0x1f0 [ 32.971890] ? shrink_dcache_for_umount+0x165/0x330 [ 32.976912] generic_shutdown_super+0xb3/0x370 [ 32.981476] kill_block_super+0x97/0xf0 [ 32.985439] deactivate_locked_super+0x94/0x160 [ 32.990085] deactivate_super+0x174/0x1a0 [ 32.994213] ? deactivate_locked_super+0x160/0x160 [ 32.999124] ? dput+0x31/0x640 [ 33.002300] cleanup_mnt+0x1a8/0x290 [ 33.006019] task_work_run+0x148/0x1c0 [ 33.009893] do_exit+0xbf3/0x2be0 [ 33.013327] ? lock_downgrade+0x720/0x720 [ 33.017538] ? mm_update_next_owner+0x650/0x650 [ 33.022193] ? up_read+0x17/0x110 [ 33.025638] ? __do_page_fault+0x180/0xd60 [ 33.031500] do_group_exit+0x125/0x310 [ 33.035367] __x64_sys_exit_group+0x3a/0x50 [ 33.039666] do_syscall_64+0xf9/0x620 [ 33.043452] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 33.048731] RIP: 0033:0x7f8f3d788c09 [ 33.052427] Code: Bad RIP value. [ 33.055768] RSP: 002b:00007ffe474b61d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 33.063538] RAX: ffffffffffffffda RBX: 00007f8f3d7ff3f0 RCX: 00007f8f3d788c09 [ 33.070784] RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001 [ 33.078035] RBP: 0000000000000001 R08: ffffffffffffffc0 R09: 00007f8f3d7f9e40 [ 33.085282] R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8f3d7ff3f0 [ 33.092531] R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001 [ 33.099789] Modules linked in: [ 33.104403] ---[ end trace 3d3925d8eaa9b569 ]--- [ 33.109220] RIP: 0010:ext4_getblk+0x454/0x4f0 [ 33.114732] Code: 0b e8 e0 24 83 ff 4c 89 e7 e8 d8 d8 d0 ff e9 b0 fd ff ff e8 ce 24 83 ff 4c 89 e7 e8 26 d9 d0 ff e9 ef fe ff ff e8 bc 24 83 ff <0f> 0b e8 45 45 58 ff 48 89 34 24 e8 9c 01 b9 ff 48 8b 34 24 e9 bb [ 33.134107] RSP: 0018:ffff888091e37158 EFLAGS: 00010293 [ 33.139491] RAX: ffff88809509e600 RBX: 0000000000000005 RCX: ffffffff81df6031 [ 33.146836] RDX: 0000000000000000 RSI: ffffffff81df60b4 RDI: 0000000000000005 [ 33.154155] RBP: 1ffff110123c6e2d R08: 0000000000001400 R09: 0000000000000000 [ 33.161544] R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000021 [ 33.168892] R13: 0000000000000000 R14: ffff88808b0538f0 R15: 0000000000000001 [ 33.176218] FS: 00005555565a2300(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 [ 33.184540] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 33.190407] CR2: 00005634325f58e0 CR3: 00000000a25bb000 CR4: 00000000003406e0 [ 33.197802] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 33.205256] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 33.212588] Kernel panic - not syncing: Fatal exception [ 33.218212] Kernel Offset: disabled [ 33.221823] Rebooting in 86400 seconds..