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kernel BUG at fs/ext4/inode.c:2609!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 11 Comm: kworker/u4:0 Not tainted 6.11.0-syzkaller-10669-g11a299a7933e #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Workqueue: writeback wb_workfn (flush-7:0)
RIP: 0010:ext4_do_writepages+0x3d16/0x3d20 fs/ext4/inode.c:2608
Code: b0 8e 4c 89 f2 e8 7a 40 94 02 e9 ab fb ff ff e8 40 cb 34 ff 90 0f 0b e8 38 cb 34 ff 90 0f 0b e8 40 5a 64 09 e8 2b cb 34 ff 90 <0f> 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900003d6cc0 EFLAGS: 00010293
RAX: ffffffff825fea15 RBX: 0000004000000000 RCX: ffff88801b742440
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc900003d70d0 R08: ffffffff825fb213 R09: 1ffff110039ae9f2
R10: dffffc0000000000 R11: ffffed10039ae9f3 R12: 0000000000000001
R13: 0000000004208060 R14: 0000006210000000 R15: ffff88801cd751f0
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc72aaff000 CR3: 0000000058118000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2813
 do_writepages+0x35d/0x870 mm/page-writeback.c:2683
 __writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1658
 writeback_sb_inodes+0x80c/0x1370 fs/fs-writeback.c:1954
 wb_writeback+0x41b/0xbd0 fs/fs-writeback.c:2134
 wb_do_writeback fs/fs-writeback.c:2281 [inline]
 wb_workfn+0x410/0x1090 fs/fs-writeback.c:2321
 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+0x3d16/0x3d20 fs/ext4/inode.c:2608
Code: b0 8e 4c 89 f2 e8 7a 40 94 02 e9 ab fb ff ff e8 40 cb 34 ff 90 0f 0b e8 38 cb 34 ff 90 0f 0b e8 40 5a 64 09 e8 2b cb 34 ff 90 <0f> 0b 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900003d6cc0 EFLAGS: 00010293
RAX: ffffffff825fea15 RBX: 0000004000000000 RCX: ffff88801b742440
RDX: 0000000000000000 RSI: 0000004000000000 RDI: 0000000000000000
RBP: ffffc900003d70d0 R08: ffffffff825fb213 R09: 1ffff110039ae9f2
R10: dffffc0000000000 R11: ffffed10039ae9f3 R12: 0000000000000001
R13: 0000000004208060 R14: 0000006210000000 R15: ffff88801cd751f0
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc6996f3000 CR3: 000000003c49c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400