Hello, syzbot found the following issue on: HEAD commit: 1a5304fecee5 Merge tag 'parisc-for-6.4-1' of git://git.ker.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1159c15a280000 kernel config: https://syzkaller.appspot.com/x/.config?x=73a06f6ef2d5b492 dashboard link: https://syzkaller.appspot.com/bug?extid=0b7eed2aab568dec42b8 compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/dd767dde3306/disk-1a5304fe.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/21e0fbeccd39/vmlinux-1a5304fe.xz kernel image: https://storage.googleapis.com/syzbot-assets/dada79d4407c/bzImage-1a5304fe.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+0b7eed2aab568dec42b8@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 8987 at fs/udf/udfdecl.h:123 udf_add_fid_counter fs/udf/namei.c:350 [inline] WARNING: CPU: 0 PID: 8987 at fs/udf/udfdecl.h:123 udf_unlink+0x5ab/0x740 fs/udf/namei.c:565 Modules linked in: CPU: 0 PID: 8987 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller-13027-g1a5304fecee5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 RIP: 0010:udf_updated_lvid fs/udf/udfdecl.h:121 [inline] RIP: 0010:udf_add_fid_counter fs/udf/namei.c:350 [inline] RIP: 0010:udf_unlink+0x5ab/0x740 fs/udf/namei.c:565 Code: 04 25 28 00 00 00 48 3b 84 24 40 01 00 00 0f 85 06 01 00 00 89 d8 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 e5 c0 8b fe <0f> 0b e9 1f ff ff ff 89 f9 80 e1 07 38 c1 0f 8c 47 fb ff ff be 06 RSP: 0018:ffffc9000709fba0 EFLAGS: 00010283 RAX: ffffffff82ffcf3b RBX: 000000003fd1f4fc RCX: 0000000000040000 RDX: ffffc90004091000 RSI: 00000000000020ee RDI: 00000000000020ef RBP: ffffc9000709fd30 R08: ffffffff82ffce54 R09: fffffbfff1cab866 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff92000e13f7c R14: ffff8880754c2678 R15: ffff88804e5b201c FS: 00007f52a20dd700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000a43 CR3: 000000007d2e7000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> vfs_unlink+0x35d/0x5f0 fs/namei.c:4327 do_unlinkat+0x4a7/0x950 fs/namei.c:4393 __do_sys_unlink fs/namei.c:4441 [inline] __se_sys_unlink fs/namei.c:4439 [inline] __x64_sys_unlink+0x49/0x50 fs/namei.c:4439 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f52ab88c169 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f52a20dd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007f52ab9ac050 RCX: 00007f52ab88c169 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000300 RBP: 00007f52ab8e7ca1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc735e15ef R14: 00007f52a20dd300 R15: 0000000000022000 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the bug is already fixed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to change bug's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the bug is a duplicate of another bug, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
