[v6.1] WARNING in udf_new_block (2)

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Apr 18, 2024, 10:50:24 PM (13 days ago) Apr 18
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Hello,

syzbot found the following issue on:

HEAD commit: 6741e066ec76 Linux 6.1.87
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=167ba22d180000
kernel config: https://syzkaller.appspot.com/x/.config?x=3fc2f61bd0ae457
dashboard link: https://syzkaller.appspot.com/bug?extid=6c3f0208bf6430fc52fe
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40

Unfortunately, I don't have any reproducer for this issue yet.

Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/b606a22ddf4b/disk-6741e066.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e31c21737449/vmlinux-6741e066.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ee0cb8c049e9/bzImage-6741e066.xz

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+6c3f02...@syzkaller.appspotmail.com

UDF-fs: INFO Mounting volume 'Li uxUDF', timestamp 2022/11/22 14:59 (1000)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4855 at fs/udf/udfdecl.h:116 udf_add_free_space fs/udf/balloc.c:125 [inline]
WARNING: CPU: 0 PID: 4855 at fs/udf/udfdecl.h:116 udf_table_new_block fs/udf/balloc.c:667 [inline]
WARNING: CPU: 0 PID: 4855 at fs/udf/udfdecl.h:116 udf_new_block+0x1dba/0x2130 fs/udf/balloc.c:733
Modules linked in:
CPU: 0 PID: 4855 Comm: syz-executor.3 Not tainted 6.1.87-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:udf_updated_lvid fs/udf/udfdecl.h:114 [inline]
RIP: 0010:udf_add_free_space fs/udf/balloc.c:125 [inline]
RIP: 0010:udf_table_new_block fs/udf/balloc.c:667 [inline]
RIP: 0010:udf_new_block+0x1dba/0x2130 fs/udf/balloc.c:733
Code: fe e9 00 fd ff ff e8 f5 26 8e fe 48 8b bc 24 88 00 00 00 e8 d8 fb 96 07 45 31 f6 48 8b 5c 24 78 e9 6d fd ff ff e8 d6 26 8e fe <0f> 0b e9 64 fc ff ff 89 d9 80 e1 07 fe c1 38 c1 0f 8c 81 e3 ff ff
RSP: 0018:ffffc9000cfaf560 EFLAGS: 00010287
RAX: ffffffff82fc688a RBX: 000000003fcb46f9 RCX: 0000000000040000
RDX: ffffc90003b51000 RSI: 0000000000000f58 RDI: 0000000000000f59
RBP: ffffc9000cfaf7b0 R08: ffffffff82fc64e8 R09: fffffbfff1ce6eee
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888061b8501c R15: 0000000000000038
FS: 00007f64d611c6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020014000 CR3: 000000005a042000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
udf_new_inode+0x3a3/0xf10 fs/udf/ialloc.c:86
udf_create+0x1f/0x140 fs/udf/namei.c:612
lookup_open fs/namei.c:3484 [inline]
open_last_lookups fs/namei.c:3552 [inline]
path_openat+0x12f1/0x2e60 fs/namei.c:3782
do_filp_open+0x230/0x480 fs/namei.c:3812
do_sys_openat2+0x13b/0x500 fs/open.c:1318
do_sys_open fs/open.c:1334 [inline]
__do_sys_openat fs/open.c:1350 [inline]
__se_sys_openat fs/open.c:1345 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1345
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f64d547dea9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f64d611c0c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f64d55ac050 RCX: 00007f64d547dea9
RDX: 000000000000275a RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f64d54ca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f64d55ac050 R15: 00007ffe575c2718
</TASK>


---
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