loop0: detected capacity change from 0 to 131072 F2FS-fs (loop0): invalid crc value F2FS-fs (loop0): Found nat_bits in checkpoint F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4 F2FS-fs (loop0): sanity_check_inode: inode (ino=6, mode=41471) should not have inline_data, run fsck to fix loop0: detected capacity change from 131072 to 0 Process accounting resumed ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5329 at fs/inode.c:336 drop_nlink+0xc4/0x110 fs/inode.c:336 Modules linked in: CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted 6.12.0-rc7-syzkaller #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:drop_nlink+0xc4/0x110 fs/inode.c:336 Code: bb 70 07 00 00 be 08 00 00 00 e8 47 09 e6 ff 3e 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 1d 3c 7c ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff RSP: 0018:ffffc9000d0efbb8 EFLAGS: 00010283 RAX: ffffffff82189df3 RBX: 1ffff1100a00b586 RCX: 0000000000040000 RDX: ffffc9000db81000 RSI: 00000000000005f3 RDI: 00000000000005f4 RBP: 0000000000000000 R08: ffffffff82189d73 R09: 1ffffffff2859b1f R10: dffffc0000000000 R11: fffffbfff2859b20 R12: ffff88805005ac30 R13: dffffc0000000000 R14: ffff88805005abe8 R15: dffffc0000000000 FS: 00007f28d7c2d6c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe6964c878 CR3: 0000000042c52000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: f2fs_i_links_write fs/f2fs/f2fs.h:3127 [inline] f2fs_drop_nlink+0xd6/0x380 fs/f2fs/dir.c:822 f2fs_unlink+0x47f/0x960 fs/f2fs/namei.c:572 vfs_unlink+0x365/0x650 fs/namei.c:4469 do_unlinkat+0x4ae/0x830 fs/namei.c:4533 __do_sys_unlink fs/namei.c:4581 [inline] __se_sys_unlink fs/namei.c:4579 [inline] __x64_sys_unlink+0x47/0x50 fs/namei.c:4579 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f28d6d7e719 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f28d7c2d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007f28d6f35f80 RCX: 00007f28d6d7e719 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200001c0 RBP: 00007f28d6df139e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f28d6f35f80 R15: 00007ffedbc244f8