------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2624!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 8151 Comm: syz.4.275 Not tainted 6.15.0-rc7-syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:ext4_do_writepages+0x3e47/0x3e50 fs/ext4/inode.c:2623
Code: c1 0f 8c 23 fd ff ff 4c 89 e7 e8 e4 cb b0 ff e9 16 fd ff ff e8 4a f7 50 ff 90 0f 0b e8 42 f7 50 ff 90 0f 0b e8 3a f7 50 ff 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900167fef80 EFLAGS: 00010287
RAX: ffffffff826ef9a6 RBX: 0000004210000000 RCX: 0000000000080000
RDX: ffffc9000d04b000 RSI: 0000000000000a2c RDI: 0000000000000a2d
RBP: ffffc900167ff370 R08: ffff888031d66367 R09: 1ffff110063acc6c
R10: dffffc0000000000 R11: ffffed10063acc6d R12: ffffc900167ff680
R13: ffffc900167ff3c0 R14: 0000004000000000 R15: 0000000000000001
FS:  00007fdd9a08f6c0(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1cf44f3000 CR3: 0000000011646000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_writepages+0x203/0x350 fs/ext4/inode.c:2829
 do_writepages+0x3b1/0x7b0 mm/page-writeback.c:2656
 filemap_fdatawrite_wbc mm/filemap.c:386 [inline]
 __filemap_fdatawrite_range mm/filemap.c:419 [inline]
 __filemap_fdatawrite mm/filemap.c:425 [inline]
 filemap_flush+0x189/0x220 mm/filemap.c:470
 ext4_rename fs/ext4/namei.c:3865 [inline]
 ext4_rename2+0xeab/0x2f50 fs/ext4/namei.c:4205
 vfs_rename+0xb9c/0xec0 fs/namei.c:5121
 do_renameat2+0x878/0xc50 fs/namei.c:5270
 __do_sys_rename fs/namei.c:5317 [inline]
 __se_sys_rename fs/namei.c:5315 [inline]
 __x64_sys_rename+0x82/0x90 fs/namei.c:5315
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fdd9918e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fdd9a08f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000052
RAX: ffffffffffffffda RBX: 00007fdd993b5fa0 RCX: 00007fdd9918e969
RDX: 0000000000000000 RSI: 0000200000000080 RDI: 00002000000000c0
RBP: 00007fdd99210ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fdd993b5fa0 R15: 00007fff747171d8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_do_writepages+0x3e47/0x3e50 fs/ext4/inode.c:2623
Code: c1 0f 8c 23 fd ff ff 4c 89 e7 e8 e4 cb b0 ff e9 16 fd ff ff e8 4a f7 50 ff 90 0f 0b e8 42 f7 50 ff 90 0f 0b e8 3a f7 50 ff 90 <0f> 0b 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900167fef80 EFLAGS: 00010287
RAX: ffffffff826ef9a6 RBX: 0000004210000000 RCX: 0000000000080000
RDX: ffffc9000d04b000 RSI: 0000000000000a2c RDI: 0000000000000a2d
RBP: ffffc900167ff370 R08: ffff888031d66367 R09: 1ffff110063acc6c
R10: dffffc0000000000 R11: ffffed10063acc6d R12: ffffc900167ff680
R13: ffffc900167ff3c0 R14: 0000004000000000 R15: 0000000000000001
FS:  00007fdd9a08f6c0(0000) GS:ffff8881260f6000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055558f535608 CR3: 0000000011646000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400