EXT4-fs error (device loop1): __ext4_new_inode:923: comm syz-executor.1: reserved inode found cleared - inode=1 EXT4-fs (loop1): Remounting filesystem read-only EXT4-fs error (device loop1): ext4_remount:5338: Abort forced by user ------------[ cut here ]------------ kernel BUG at fs/ext4/inode.c:989! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 5917 Comm: syz-executor.1 Not tainted 4.19.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ext4_getblk+0x2c6/0x3c0 fs/ext4/inode.c:989 Code: 48 33 1c 25 28 00 00 00 75 6a 48 83 ec 80 5b 41 5c 41 5d 41 5e 41 5f 5d c3 4d 89 f7 49 c1 e7 3f 49 c1 ff 3f 49 83 e7 e4 eb bc <0f> 0b 4c 89 ff 89 85 70 ff ff ff e8 7a ab d4 ff 8b 85 70 ff ff ff RSP: 0018:ffff8881d1c87280 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 1ffff1103a390e68 RCX: 0000000000000021 RDX: 0000000000000009 RSI: ffff8881c83897b0 RDI: 0000000000000000 RBP: ffff8881d1c87328 R08: 1ffff1103adcc1bc R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1103a390e54 R13: ffffed10390712fb R14: 0000000000000001 R15: 0000000000000009 FS: 0000000002347400(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffbfe46f68 CR3: 00000001e207a002 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ext4_bread+0x5c/0x1a0 fs/ext4/inode.c:1043 ext4_quota_write+0x22a/0x550 fs/ext4/super.c:6001 write_blk+0xfe/0x210 fs/quota/quota_tree.c:72 remove_free_dqentry+0x1be/0x420 fs/quota/quota_tree.c:168 free_dqentry fs/quota/quota_tree.c:436 [inline] remove_tree+0xcdb/0x1330 fs/quota/quota_tree.c:491 remove_tree+0x1c0/0x1330 fs/quota/quota_tree.c:494 remove_tree+0x1c0/0x1330 fs/quota/quota_tree.c:494 remove_tree+0x1c0/0x1330 fs/quota/quota_tree.c:494 qtree_delete_dquot fs/quota/quota_tree.c:527 [inline] qtree_release_dquot fs/quota/quota_tree.c:673 [inline] qtree_release_dquot+0x147/0x1b0 fs/quota/quota_tree.c:669 v2_release_dquot+0xcd/0x110 fs/quota/quota_v2.c:375 dquot_release+0x184/0x370 fs/quota/dquot.c:497 ext4_release_dquot+0x1cb/0x240 fs/ext4/super.c:5675 dqput.part.4+0x16e/0x750 fs/quota/dquot.c:794 dqput+0xe/0x20 fs/quota/dquot.c:749 dqput_all fs/quota/dquot.c:391 [inline] __dquot_drop+0x11a/0x170 fs/quota/dquot.c:1568 dquot_drop fs/quota/dquot.c:1593 [inline] dquot_drop+0x132/0x1a0 fs/quota/dquot.c:1571 ext4_clear_inode+0x2c/0x1d0 fs/ext4/super.c:1178 ext4_evict_inode+0x1d8/0x1510 fs/ext4/inode.c:357 evict+0x29c/0x590 fs/inode.c:559 dispose_list+0xfe/0x1f0 fs/inode.c:594 evict_inodes+0x2b8/0x3b0 fs/inode.c:644 generic_shutdown_super+0xac/0x330 fs/super.c:448 kill_block_super+0x96/0xe0 fs/super.c:1185 deactivate_locked_super+0x77/0xd0 fs/super.c:329 deactivate_super fs/super.c:360 [inline] deactivate_super+0x13f/0x160 fs/super.c:356 cleanup_mnt+0xa3/0x130 fs/namespace.c:1098 __cleanup_mnt+0xd/0x10 fs/namespace.c:1105 task_work_run+0x108/0x180 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:193 [inline] exit_to_usermode_loop+0x185/0x1e0 arch/x86/entry/common.c:167 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x413/0x4e0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x466ca7 Code: ff d0 48 89 c7 b8 3c 00 00 00 0f 05 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 b8 a6 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fffbfe476a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000466ca7 RDX: 00007fffbfe47779 RSI: 0000000000000002 RDI: 00007fffbfe47770 RBP: 00007fffbfe47770 R08: 00000000ffffffff R09: 00007fffbfe47540 R10: 00000000023488e3 R11: 0000000000000246 R12: 00000000004ae4c5 R13: 00007fffbfe48820 R14: 0000000002348810 R15: 0000000000000003 Modules linked in: ---[ end trace 5019366bb121b20c ]--- RIP: 0010:ext4_getblk+0x2c6/0x3c0 fs/ext4/inode.c:989 Code: 48 33 1c 25 28 00 00 00 75 6a 48 83 ec 80 5b 41 5c 41 5d 41 5e 41 5f 5d c3 4d 89 f7 49 c1 e7 3f 49 c1 ff 3f 49 83 e7 e4 eb bc <0f> 0b 4c 89 ff 89 85 70 ff ff ff e8 7a ab d4 ff 8b 85 70 ff ff ff RSP: 0018:ffff8881d1c87280 EFLAGS: 00010202 RAX: 0000000000000000 RBX: 1ffff1103a390e68 RCX: 0000000000000021 RDX: 0000000000000009 RSI: ffff8881c83897b0 RDI: 0000000000000000 RBP: ffff8881d1c87328 R08: 1ffff1103adcc1bc R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff1103a390e54 R13: ffffed10390712fb R14: 0000000000000001 R15: 0000000000000009 FS: 0000000002347400(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fffbfe46f68 CR3: 00000001e207a002 CR4: 00000000001606f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400