------------[ cut here ]------------
WARNING: CPU: 0 PID: 79 at fs/ext4/inode.c:5195 ext4_write_inode+0x627/0x6f0 fs/ext4/inode.c:5195
Modules linked in:
CPU: 0 UID: 0 PID: 79 Comm: kswapd0 Not tainted 6.12.0-rc3-syzkaller-00087-gc964ced77262 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ext4_write_inode+0x627/0x6f0 fs/ext4/inode.c:5195
Code: ff ff ff 4d 85 ff 74 12 e8 16 38 34 ff 4c 89 ff e8 0e 7d c2 ff e9 cf fd ff ff e8 04 38 34 ff e9 c5 fd ff ff e8 fa 37 34 ff 90 <0f> 0b 90 e9 b7 fd ff ff e8 ec 37 34 ff e9 76 fd ff ff 44 89 f1 80
RSP: 0018:ffffc90001046e20 EFLAGS: 00010293
RAX: ffffffff8260af56 RBX: 0000000000000800 RCX: ffff88801f0f8000
RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000000000000000
RBP: ffffc90001046f20 R08: ffffffff8260a9f2 R09: 1ffffffff2039fcd
R10: dffffc0000000000 R11: ffffffff8260a930 R12: 0000000000220840
R13: 1ffff92000208dc8 R14: 0000000000000000 R15: ffff88801f0f8000
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f18cabe29a0 CR3: 0000000011916000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 write_inode fs/fs-writeback.c:1503 [inline]
 __writeback_single_inode+0x711/0x10d0 fs/fs-writeback.c:1723
 writeback_single_inode+0x1f3/0x660 fs/fs-writeback.c:1779
 write_inode_now+0x1dd/0x260 fs/fs-writeback.c:2829
 iput_final fs/inode.c:1864 [inline]
 iput+0x60d/0xa50 fs/inode.c:1903
 __dentry_kill+0x20d/0x630 fs/dcache.c:615
 shrink_kill+0xa9/0x2c0 fs/dcache.c:1060
 shrink_dentry_list+0x2c0/0x5b0 fs/dcache.c:1087
 prune_dcache_sb+0x10f/0x180 fs/dcache.c:1168
 super_cache_scan+0x34f/0x4b0 fs/super.c:221
 do_shrink_slab+0x701/0x1160 mm/shrinker.c:435
 shrink_slab+0x1093/0x14d0 mm/shrinker.c:662
 shrink_one+0x43b/0x850 mm/vmscan.c:4818
 shrink_many mm/vmscan.c:4879 [inline]
 lru_gen_shrink_node mm/vmscan.c:4957 [inline]
 shrink_node+0x3799/0x3de0 mm/vmscan.c:5937
 kswapd_shrink_node mm/vmscan.c:6765 [inline]
 balance_pgdat mm/vmscan.c:6957 [inline]
 kswapd+0x1ca3/0x3700 mm/vmscan.c:7226
 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>