syzbot


WARNING in udf_setsize

Status: upstream: reported C repro on 2023/04/22 09:32
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+f18c975097035ab8b6ba@syzkaller.appspotmail.com
First crash: 367d, last: 3d07h
Bug presence (1)
Date Name Commit Repro Result
2023/08/07 upstream (ToT) 52a93d39b17d C [report] WARNING in udf_setsize
Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in udf_setsize udf C done 24 323d 493d 22/26 fixed on 2023/06/08 14:41
linux-6.1 WARNING in udf_setsize origin:upstream C 2 8d15h 219d 0/3 upstream: reported C repro on 2023/09/16 17:41
linux-4.14 WARNING in udf_setsize C 1 428d 428d 0/1 upstream: reported C repro on 2023/02/20 06:04
upstream WARNING in udf_setsize (2) udf C done 25 7h33m 315d 0/26 upstream: reported C repro on 2023/06/12 18:18
Fix bisection attempts (7)
Created Duration User Patch Repo Result
2024/04/20 04:28 1h28m bisect fix linux-5.15.y job log (0) log
2024/03/17 14:21 1h15m bisect fix linux-5.15.y job log (0) log
2024/02/14 05:26 1h25m bisect fix linux-5.15.y job log (0) log
2024/01/06 01:01 1h22m bisect fix linux-5.15.y job log (0) log
2023/12/06 21:02 1h02m bisect fix linux-5.15.y job log (0) log
2023/11/06 13:40 1h44m bisect fix linux-5.15.y job log (0) log
2023/10/04 22:41 1h08m bisect fix linux-5.15.y job log (0) log

Sample crash report:
loop0: detected capacity change from 0 to 2048
UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000)
------------[ cut here ]------------
WARNING: CPU: 1 PID: 3780 at fs/udf/inode.c:650 udf_setsize+0x103d/0x1430 fs/udf/inode.c:1236
Modules linked in:
CPU: 1 PID: 3780 Comm: syz-executor228 Not tainted 5.15.124-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2023
RIP: 0010:udf_extend_file fs/udf/inode.c:649 [inline]
RIP: 0010:udf_setsize+0x103d/0x1430 fs/udf/inode.c:1236
Code: 8a fe 31 ff 44 89 e6 e8 21 f2 a8 fe 45 85 e4 74 0a e8 b7 ee a8 fe e9 2a ff ff ff e8 ad ee a8 fe e9 e7 fd ff ff e8 a3 ee a8 fe <0f> 0b e9 5e f6 ff ff 89 d9 80 e1 07 38 c1 0f 8c 7e f0 ff ff 48 89
RSP: 0018:ffffc900032ffb00 EFLAGS: 00010293
RAX: ffffffff82d7135d RBX: 0000000000000200 RCX: ffff88801c199dc0
RDX: 0000000000000000 RSI: 0000000000000400 RDI: 0000000000000200
RBP: ffffc900032ffcd0 R08: ffffffff82d7099e R09: ffffed100e0b00f1
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000009
R13: 1ffff9200065ff70 R14: 0000000000000400 R15: 0000000000000002
FS:  00007f018100e6c0(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0178cede00 CR3: 000000001e46d000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 udf_setattr+0x36c/0x540 fs/udf/file.c:277
 notify_change+0xd4d/0x1000 fs/attr.c:488
 do_truncate+0x21c/0x300 fs/open.c:65
 do_sys_ftruncate+0x2eb/0x390 fs/open.c:193
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f0181052389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 18 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:00007f018100e218 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f01810da6c8 RCX: 00007f0181052389
RDX: 00007f0181052389 RSI: 0000000000000002 RDI: 0000000000000004
RBP: 00007f01810da6c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f01810a7040
R13: 00007f01810a6448 R14: 00007f01810a6300 R15: 0030656c69662f2e
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/08/06 22:00 linux-5.15.y 38d4ca22a528 4ffcc9ef .config console log report syz C [disk image] [vmlinux] [kernel image] [mounted in repro] ci2-linux-5-15-kasan WARNING in udf_setsize
2023/04/22 09:32 linux-5.15.y 3299fb36854f 2b32bd34 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan-arm64 WARNING in udf_setsize
* Struck through repros no longer work on HEAD.