EXT4-fs error (device loop0) in ext4_reserve_inode_write:5718: Corrupt filesystem
EXT4-fs error (device loop0): ext4_alloc_file_blocks:4476: inode #18: comm syz-executor.0: mark_inode_dirty error
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kernel BUG at fs/ext4/ext4.h:3241!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 14219 Comm: syz-executor.0 Not tainted 6.4.0-rc1-syzkaller-00012-g16a8829130ca #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:ext4_get_group_info+0x399/0x3a0 fs/ext4/ext4.h:3241
Code: 4c ff 8b 74 24 04 48 c7 c7 40 34 0c 8d 4c 89 f2 e8 6c 0b 2e 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 17 cb 4c ff <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00
RSP: 0018:ffffc90016667878 EFLAGS: 00010283
RAX: ffffffff823e9c29 RBX: 00000000ffffe4ac RCX: 0000000000040000
RDX: ffffc90003eb2000 RSI: 0000000000014844 RDI: 0000000000014845
RBP: 0000000000000001 R08: ffffffff823e98f9 R09: fffffbfff1cab806
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110065c1ccf
R13: dffffc0000000000 R14: ffff88802ad7a000 R15: ffff888032e0e678
FS:  00007f9ec3a48700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa5f8786058 CR3: 0000000078e25000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_mb_load_buddy_gfp+0xc6/0x850 fs/ext4/mballoc.c:1446
 ext4_discard_preallocations+0x744/0x1090 fs/ext4/mballoc.c:5226
 ext4_release_file+0x16e/0x300 fs/ext4/file.c:166
 __fput+0x3b7/0x890 fs/file_table.c:321
 task_work_run+0x24a/0x300 kernel/task_work.c:179
 get_signal+0x1606/0x17e0 kernel/signal.c:2650
 arch_do_signal_or_restart+0x91/0x670 arch/x86/kernel/signal.c:306
 exit_to_user_mode_loop+0x6a/0x100 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x64/0x280 kernel/entry/common.c:297
 do_syscall_64+0x4d/0xc0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f9ec2c8c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f9ec3a48168 EFLAGS: 00000246 ORIG_RAX: 000000000000011d
RAX: ffffffffffffff8b RBX: 00007f9ec2dabf80 RCX: 00007f9ec2c8c169
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f9ec2ce7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffecf9f257f R14: 00007f9ec3a48300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_get_group_info+0x399/0x3a0 fs/ext4/ext4.h:3241
Code: 4c ff 8b 74 24 04 48 c7 c7 40 34 0c 8d 4c 89 f2 e8 6c 0b 2e 02 43 80 3c 2c 00 0f 85 23 fd ff ff e9 26 fd ff ff e8 17 cb 4c ff <0f> 0b 0f 1f 44 00 00 55 41 57 41 56 41 54 53 48 89 fb 49 bf 00 00
RSP: 0018:ffffc90016667878 EFLAGS: 00010283
RAX: ffffffff823e9c29 RBX: 00000000ffffe4ac RCX: 0000000000040000
RDX: ffffc90003eb2000 RSI: 0000000000014844 RDI: 0000000000014845
RBP: 0000000000000001 R08: ffffffff823e98f9 R09: fffffbfff1cab806
R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffff110065c1ccf
R13: dffffc0000000000 R14: ffff88802ad7a000 R15: ffff888032e0e678
FS:  00007f9ec3a48700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa385986058 CR3: 0000000078e25000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400