------------[ cut here ]------------
kernel BUG at fs/ext4/inode.c:2749!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 8 Comm: kworker/u4:0 Tainted: G        W          6.1.90-syzkaller-00127-g6aafd06a463b #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:ext4_writepages+0x3fab/0x3fd0 fs/ext4/inode.c:2748
Code: ac 80 ff 31 ff 89 de e8 53 ac 80 ff 45 84 f6 75 2a e8 b9 a9 80 ff 49 bc 00 00 00 00 00 fc ff df e9 6e f6 ff ff e8 a5 a9 80 ff <0f> 0b e8 9e a9 80 ff e8 95 90 0b ff e9 46 c3 ff ff e8 8f a9 80 ff
RSP: 0018:ffffc90000087000 EFLAGS: 00010293
RAX: ffffffff81f4f90b RBX: 0000008000000000 RCX: ffff888100398000
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc90000087410 R08: ffffffff81f4c06b R09: ffffed10200c40c2
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888137b70000
R13: ffff888100620748 R14: 000000c410000000 R15: ffffc900000872e0
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd2e231ff8 CR3: 000000012c87b000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 do_writepages+0x385/0x620 mm/page-writeback.c:2472
 __writeback_single_inode+0xdc/0xb80 fs/fs-writeback.c:1612
 writeback_sb_inodes+0xb32/0x1910 fs/fs-writeback.c:1903
 wb_writeback+0x3b9/0x9f0 fs/fs-writeback.c:2077
 wb_do_writeback fs/fs-writeback.c:2220 [inline]
 wb_workfn+0x399/0x1030 fs/fs-writeback.c:2260
 process_one_work+0x73d/0xcb0 kernel/workqueue.c:2299
 worker_thread+0xa60/0x1260 kernel/workqueue.c:2446
 kthread+0x26d/0x300 kernel/kthread.c:386
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_writepages+0x3fab/0x3fd0 fs/ext4/inode.c:2748
Code: ac 80 ff 31 ff 89 de e8 53 ac 80 ff 45 84 f6 75 2a e8 b9 a9 80 ff 49 bc 00 00 00 00 00 fc ff df e9 6e f6 ff ff e8 a5 a9 80 ff <0f> 0b e8 9e a9 80 ff e8 95 90 0b ff e9 46 c3 ff ff e8 8f a9 80 ff
RSP: 0018:ffffc90000087000 EFLAGS: 00010293
RAX: ffffffff81f4f90b RBX: 0000008000000000 RCX: ffff888100398000
RDX: 0000000000000000 RSI: 0000008000000000 RDI: 0000000000000000
RBP: ffffc90000087410 R08: ffffffff81f4c06b R09: ffffed10200c40c2
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff888137b70000
R13: ffff888100620748 R14: 000000c410000000 R15: ffffc900000872e0
FS:  0000000000000000(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056383f3d0748 CR3: 000000010ee39000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400