EXT4-fs error (device loop1): __ext4_get_inode_loc:4492: comm syz-executor.1: Invalid inode table block 0 in block_group 0
EXT4-fs error (device loop1) in ext4_reserve_inode_write:5841: Corrupt filesystem
EXT4-fs error (device loop1): ext4_dirty_inode:6045: inode #19: comm syz-executor.1: mark_inode_dirty error
EXT4-fs error (device loop1): __ext4_get_inode_loc:4492: comm syz-executor.1: Invalid inode table block 0 in block_group 0
------------[ cut here ]------------
kernel BUG at fs/ext4/ext4.h:3331!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1254 Comm: syz-executor.1 Not tainted 6.1.25-syzkaller-00094-gd73b3af21fb9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3331 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xef8/0xf10 fs/ext4/mballoc.c:1448
Code: ae 4d c6 ff e9 de f3 ff ff e8 d4 64 80 ff 48 c7 c7 20 af 8b 86 4c 89 ee 48 89 da e8 d2 3e a7 00 e9 50 f2 ff ff e8 b8 64 80 ff <0f> 0b e8 b1 64 80 ff 0f 0b e8 aa 64 80 ff 0f 0b 0f 1f 84 00 00 00
RSP: 0018:ffffc9000d3477a8 EFLAGS: 00010246
RAX: ffffffff81f35ef8 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc90002899000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000d347830 R08: ffffffff81f350ec R09: ffffed1021710e1f
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000fffed987
R13: ffff8881126be000 R14: ffff8881138733c8 R15: ffff888113873018
FS:  00007f520e621700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f282f406ed8 CR3: 000000012805d000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_discard_preallocations+0x79c/0xef0 fs/ext4/mballoc.c:5021
 ext4_release_file+0x16e/0x310 fs/ext4/file.c:166
 __fput+0x3ab/0x870 fs/file_table.c:320
 ____fput+0x15/0x20 fs/file_table.c:348
 task_work_run+0x24d/0x2e0 kernel/task_work.c:179
 get_signal+0x15a0/0x1820 kernel/signal.c:2638
 arch_do_signal_or_restart+0xb0/0x16f0 arch/x86/kernel/signal.c:869
 exit_to_user_mode_loop+0x6b/0xa0 kernel/entry/common.c:168
 exit_to_user_mode_prepare+0x5a/0xa0 kernel/entry/common.c:204
 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline]
 syscall_exit_to_user_mode+0x26/0x130 kernel/entry/common.c:297
 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f520d88c389
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:00007f520e621168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: 0000000000030000 RBX: 00007f520d9abf80 RCX: 00007f520d88c389
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007f520d8d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff596bb0df R14: 00007f520e621300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_get_group_info fs/ext4/ext4.h:3331 [inline]
RIP: 0010:ext4_mb_load_buddy_gfp+0xef8/0xf10 fs/ext4/mballoc.c:1448
Code: ae 4d c6 ff e9 de f3 ff ff e8 d4 64 80 ff 48 c7 c7 20 af 8b 86 4c 89 ee 48 89 da e8 d2 3e a7 00 e9 50 f2 ff ff e8 b8 64 80 ff <0f> 0b e8 b1 64 80 ff 0f 0b e8 aa 64 80 ff 0f 0b 0f 1f 84 00 00 00
RSP: 0018:ffffc9000d3477a8 EFLAGS: 00010246

RAX: ffffffff81f35ef8 RBX: 0000000000000001 RCX: 0000000000040000
RDX: ffffc90002899000 RSI: 000000000003ffff RDI: 0000000000040000
RBP: ffffc9000d347830 R08: ffffffff81f350ec R09: ffffed1021710e1f
R10: 0000000000000000 R11: dffffc0000000001 R12: 00000000fffed987
R13: ffff8881126be000 R14: ffff8881138733c8 R15: ffff888113873018
FS:  00007f520e621700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200bd038 CR3: 000000012805d000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400