------------[ 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-rc1-syzkaller-00381-g2a130b7e1fcd #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 46 35 34 ff 4c 89 ff e8 9e 7e c2 ff e9 cf fd ff ff e8 34 35 34 ff e9 c5 fd ff ff e8 2a 35 34 ff 90 <0f> 0b 90 e9 b7 fd ff ff e8 1c 35 34 ff e9 76 fd ff ff 44 89 f1 80 RSP: 0018:ffffc90000e46c20 EFLAGS: 00010293 RAX: ffffffff8260b146 RBX: 0000000000000800 RCX: ffff88801f040000 RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000000000000000 RBP: ffffc90000e46d20 R08: ffffffff8260abe2 R09: 1ffffffff2039da5 R10: dffffc0000000000 R11: ffffffff8260ab20 R12: 0000000000220840 R13: 1ffff920001c8d88 R14: 0000000000000000 R15: ffff88801f040000 FS: 0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2938208440 CR3: 000000003da20000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: 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:1862 [inline] iput+0x60d/0xa50 fs/inode.c:1901 __dentry_kill+0x20d/0x630 fs/dcache.c:615 dput+0x19f/0x2b0 fs/dcache.c:857 ovl_destroy_inode+0x44/0x160 fs/overlayfs/super.c:181 destroy_inode fs/inode.c:313 [inline] evict+0x7b5/0x9b0 fs/inode.c:754 __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