EXT4-fs error (device loop1) in ext4_mb_clear_bb:5645: Filesystem failed CRC
------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:5307!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 357 Comm: syz-executor.1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:ext4_do_update_inode fs/ext4/inode.c:5306 [inline]
RIP: 0010:ext4_mark_iloc_dirty+0x3e33/0x3e40 fs/ext4/inode.c:5905
Code: ce ff e9 b2 f0 ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c bf f0 ff ff 4c 89 ff e8 b7 94 ce ff e9 b2 f0 ff ff e8 8d a4 94 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 48 89 e5 41 57 41 56 41
RSP: 0018:ffffc900010ef1b0 EFLAGS: 00010293
RAX: ffffffff81cf0183 RBX: ffff888110831001 RCX: ffff888123c313c0
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000
RBP: ffffc900010ef2b0 R08: dffffc0000000000 R09: ffffed10243b6f24
R10: ffffed10243b6f24 R11: 1ffff110243b6f23 R12: dffffc0000000000
R13: ffff888121db77e0 R14: ffff888110831000 R15: 0000000000000005
FS:  00007fc95d3406c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc95d31fd58 CR3: 0000000110728000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __ext4_mark_inode_dirty+0x423/0x610 fs/ext4/inode.c:6107
 __ext4_ext_dirty+0x132/0x1e0 fs/ext4/extents.c:182
 ext4_ext_rm_leaf fs/ext4/extents.c:2722 [inline]
 ext4_ext_remove_space+0x25f0/0x4920 fs/ext4/extents.c:2934
 ext4_ext_truncate+0x169/0x1f0 fs/ext4/extents.c:4467
 ext4_truncate+0xaea/0x1290 fs/ext4/inode.c:4367
 ext4_setattr+0xf07/0x1760 fs/ext4/inode.c:5682
 notify_change+0xab3/0xe40 fs/attr.c:410
 do_truncate+0x186/0x210 fs/open.c:65
 handle_truncate fs/namei.c:3054 [inline]
 do_open fs/namei.c:3395 [inline]
 path_openat+0x2aab/0x3160 fs/namei.c:3509
 do_filp_open+0x1b3/0x3e0 fs/namei.c:3536
 do_sys_openat2+0x14c/0x6d0 fs/open.c:1217
 do_sys_open fs/open.c:1233 [inline]
 __do_sys_creat fs/open.c:1309 [inline]
 __se_sys_creat fs/open.c:1303 [inline]
 __x64_sys_creat+0x8e/0xb0 fs/open.c:1303
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fc95d7beea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fc95d3400c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007fc95d8ecf80 RCX: 00007fc95d7beea9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000140
RBP: 00007fc95d80b4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007fc95d8ecf80 R15: 00007ffcff60bba8
Modules linked in:
---[ end trace 1d861789de3c77df ]---
RIP: 0010:ext4_do_update_inode fs/ext4/inode.c:5306 [inline]
RIP: 0010:ext4_mark_iloc_dirty+0x3e33/0x3e40 fs/ext4/inode.c:5905
Code: ce ff e9 b2 f0 ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c bf f0 ff ff 4c 89 ff e8 b7 94 ce ff e9 b2 f0 ff ff e8 8d a4 94 ff <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 48 89 e5 41 57 41 56 41
RSP: 0018:ffffc900010ef1b0 EFLAGS: 00010293
RAX: ffffffff81cf0183 RBX: ffff888110831001 RCX: ffff888123c313c0
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000000
RBP: ffffc900010ef2b0 R08: dffffc0000000000 R09: ffffed10243b6f24
R10: ffffed10243b6f24 R11: 1ffff110243b6f23 R12: dffffc0000000000
R13: ffff888121db77e0 R14: ffff888110831000 R15: 0000000000000005
FS:  00007fc95d3406c0(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc95d31fd58 CR3: 0000000110728000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400