------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2620!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 66 Comm: kworker/u8:4 Not tainted 6.12.0-syzkaller-09073-g9f16d5e6f220 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: writeback wb_workfn (flush-7:5)
RIP: 0010:ext4_do_writepages+0x3d0b/0x3d10 fs/ext4/inode.c:2619
Code: b0 8e 4c 89 f2 e8 85 e3 92 02 e9 ab fb ff ff e8 0b fa 42 ff 90 0f 0b e8 03 fa 42 ff 90 0f 0b e8 5b fc 6b 09 e8 f6 f9 42 ff 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66
RSP: 0000:ffffc9000215ecc0 EFLAGS: 00010293
RAX: ffffffff8252e5ca RBX: 0000004000000000 RCX: ffff88801cf01e00
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc9000215f0d0 R08: ffffffff8252adcb R09: 1ffff110046a3b2f
R10: dffffc0000000000 R11: ffffed10046a3b30 R12: 0000000000000001
R13: 0000000004208060 R14: 0000004210000000 R15: ffff88802351dbd8
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f874cb79000 CR3: 0000000030848000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2824
 do_writepages+0x35f/0x880 mm/page-writeback.c:2702
 __writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1680
 writeback_sb_inodes+0x80c/0x1370 fs/fs-writeback.c:1976
 wb_writeback+0x413/0xbc0 fs/fs-writeback.c:2156
 wb_do_writeback fs/fs-writeback.c:2303 [inline]
 wb_workfn+0x410/0x1090 fs/fs-writeback.c:2343
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
 worker_thread+0x870/0xd30 kernel/workqueue.c:3391
 kthread+0x2f0/0x390 kernel/kthread.c:389
 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_do_writepages+0x3d0b/0x3d10 fs/ext4/inode.c:2619
Code: b0 8e 4c 89 f2 e8 85 e3 92 02 e9 ab fb ff ff e8 0b fa 42 ff 90 0f 0b e8 03 fa 42 ff 90 0f 0b e8 5b fc 6b 09 e8 f6 f9 42 ff 90 <0f> 0b 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66
RSP: 0000:ffffc9000215ecc0 EFLAGS: 00010293
RAX: ffffffff8252e5ca RBX: 0000004000000000 RCX: ffff88801cf01e00
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc9000215f0d0 R08: ffffffff8252adcb R09: 1ffff110046a3b2f
R10: dffffc0000000000 R11: ffffed10046a3b30 R12: 0000000000000001
R13: 0000000004208060 R14: 0000004210000000 R15: ffff88802351dbd8
FS:  0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f874cb79000 CR3: 0000000030848000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400