UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5728 at fs/inode.c:332 drop_nlink+0xbb/0x100 fs/inode.c:332 Modules linked in: CPU: 0 PID: 5728 Comm: syz.3.324 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/24/2026 RIP: 0010:drop_nlink+0xbb/0x100 fs/inode.c:332 Code: 48 8b 1b 48 8d bb c8 07 00 00 be 08 00 00 00 e8 3b e2 ee ff f0 48 ff 83 c8 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 e8 c5 d4 a9 ff <0f> 0b eb 88 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 62 ff ff ff 4c RSP: 0018:ffffc9000308f750 EFLAGS: 00010287 RAX: ffffffff81cf4c0b RBX: ffff88805e3207c0 RCX: 0000000000080000 RDX: ffffc9000ce41000 RSI: 00000000000031cb RDI: 00000000000031cc RBP: 0000000000000000 R08: ffff8880234f8000 R09: 0000000000000002 R10: 000000003b9aca00 R11: 0000000000000002 R12: 1ffff1100bc64101 R13: f8f8f8f8f8f8f8f8 R14: ffff88805e320808 R15: dffffc0000000000 FS: 00007f07e50af6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561410c52078 CR3: 000000007e520000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_dec_link_count include/linux/fs.h:2504 [inline] udf_rename+0x9ad/0xbf0 fs/udf/namei.c:850 vfs_rename+0xbe1/0x1100 fs/namei.c:4840 do_renameat2+0x8b7/0xf60 fs/namei.c:4993 __do_sys_rename fs/namei.c:5039 [inline] __se_sys_rename fs/namei.c:5037 [inline] __x64_sys_rename+0x82/0x90 fs/namei.c:5037 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f07e6e53f79 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f07e50af028 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f07e70cefa0 RCX: 00007f07e6e53f79 RDX: 0000000000000000 RSI: 0000200000000100 RDI: 0000200000001940 RBP: 00007f07e6eea6e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f07e70cf038 R14: 00007f07e70cefa0 R15: 00007ffc65cd3798