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 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5319 at fs/inode.c:407 drop_nlink+0xc4/0x110 fs/inode.c:407 Modules linked in: CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted 6.14.0-rc2-syzkaller-00056-gab68d7eb7b1a #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:407 Code: bb 70 07 00 00 be 08 00 00 00 e8 a7 0e e7 ff 3e 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 cd 72 80 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:ffffc9000d2f77d0 EFLAGS: 00010287 RAX: ffffffff823edcd3 RBX: 1ffff1100a52269f RCX: 0000000000100000 RDX: ffffc9000e5ca000 RSI: 00000000000010ef RDI: 00000000000010f0 RBP: 0000000000000000 R08: ffffffff823edc53 R09: 1ffff1100a52272c R10: dffffc0000000000 R11: ffffed100a52272d R12: ffff8880529134f8 R13: dffffc0000000000 R14: ffff8880529134b0 R15: dffffc0000000000 FS: 00007fec9fdc16c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fec941bd000 CR3: 00000000432c4000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: f2fs_i_links_write fs/f2fs/f2fs.h:3122 [inline] f2fs_rename fs/f2fs/namei.c:1000 [inline] f2fs_rename2+0x1ba1/0x2d30 fs/f2fs/namei.c:1273 vfs_rename+0xbdb/0xf00 fs/namei.c:5069 do_renameat2+0xd94/0x13f0 fs/namei.c:5226 __do_sys_renameat2 fs/namei.c:5260 [inline] __se_sys_renameat2 fs/namei.c:5257 [inline] __x64_sys_renameat2+0xce/0xe0 fs/namei.c:5257 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: 0033:0x7fec9ef8cde9 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:00007fec9fdc1038 EFLAGS: 00000246 ORIG_RAX: 000000000000013c RAX: ffffffffffffffda RBX: 00007fec9f1a5fa0 RCX: 00007fec9ef8cde9 RDX: 0000000000000005 RSI: 0000400000000140 RDI: 0000000000000005 RBP: 00007fec9f00e2a0 R08: 0000000000000000 R09: 0000000000000000 R10: 00004000000002c0 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fec9f1a5fa0 R15: 00007ffc1557d498