syzbot


WARNING in udf_new_block (2)

Status: upstream: reported on 2024/04/19 02:50
Reported-by: syzbot+6c3f0208bf6430fc52fe@syzkaller.appspotmail.com
First crash: 39d, last: 37d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in udf_new_block udf C inconclusive done 31 154d 438d 26/26 fixed on 2024/01/31 10:34
linux-5.15 WARNING in udf_new_block origin:upstream C 3 16d 39d 0/3 upstream: reported C repro on 2024/04/19 09:03
linux-6.1 WARNING in udf_new_block 1 413d 413d 0/3 auto-obsoleted due to no activity on 2023/08/09 08:15

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 4088 at fs/udf/udfdecl.h:116 udf_add_free_space fs/udf/balloc.c:125 [inline]
WARNING: CPU: 1 PID: 4088 at fs/udf/udfdecl.h:116 udf_table_new_block fs/udf/balloc.c:667 [inline]
WARNING: CPU: 1 PID: 4088 at fs/udf/udfdecl.h:116 udf_new_block+0x1dba/0x2130 fs/udf/balloc.c:733
Modules linked in:
CPU: 1 PID: 4088 Comm: syz-executor.0 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:ffffc90005737560 EFLAGS: 00010287
RAX: ffffffff82fc688a RBX: 00000000eeef35ba RCX: 0000000000040000
RDX: ffffc9000a8b2000 RSI: 0000000000000f43 RDI: 0000000000000f44
RBP: ffffc900057377b0 R08: ffffffff82fc64e8 R09: fffffbfff1ce6eee
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: dffffc0000000000 R14: ffff888056e9c01c R15: 0000000000000038
FS:  00007f24dda646c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8afff58cd8 CR3: 000000007b33f000 CR4: 00000000003506e0
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: 0033:0x7f24dcc7dea9
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:00007f24dda640c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f24dcdac050 RCX: 00007f24dcc7dea9
RDX: 000000000000275a RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f24dccca4a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f24dcdac050 R15: 00007ffc03dad728
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/21 13:14 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_new_block
2024/04/19 02:50 linux-6.1.y 6741e066ec76 af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in udf_new_block
* Struck through repros no longer work on HEAD.