syzbot


WARNING in udf_new_block

Status: upstream: reported on 2024/04/19 09:03
Reported-by: syzbot+8cded13d88d44440ebdb@syzkaller.appspotmail.com
First crash: 13d, last: 13d
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 127d 412d 26/26 fixed on 2024/01/31 10:34
linux-6.1 WARNING in udf_new_block 1 387d 387d 0/3 auto-obsoleted due to no activity on 2023/08/09 08:15
linux-6.1 WARNING in udf_new_block (2) 2 11d 13d 0/3 upstream: reported on 2024/04/19 02:50

Sample crash report:
WARNING: CPU: 1 PID: 5302 at fs/udf/udfdecl.h:116 udf_add_free_space fs/udf/balloc.c:125 [inline]
WARNING: CPU: 1 PID: 5302 at fs/udf/udfdecl.h:116 udf_table_new_block fs/udf/balloc.c:667 [inline]
WARNING: CPU: 1 PID: 5302 at fs/udf/udfdecl.h:116 udf_new_block+0x1e2b/0x21a0 fs/udf/balloc.c:733
Modules linked in:
CPU: 1 PID: 5302 Comm: syz-executor.1 Not tainted 5.15.156-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+0x1e2b/0x21a0 fs/udf/balloc.c:733
Code: fd ff ff e8 47 ad a7 fe 48 8b bc 24 80 00 00 00 e8 3a 59 4d 07 45 31 ff 48 8b 9c 24 98 00 00 00 e9 7d fd ff ff e8 25 ad a7 fe <0f> 0b 43 80 7c 25 00 00 0f 85 5e fc ff ff e9 61 fc ff ff 89 d9 80
RSP: 0018:ffffc90003197560 EFLAGS: 00010283
RAX: ffffffff82d8afbb RBX: 00000000bff8e25c RCX: 0000000000040000
RDX: ffffc9000de5d000 RSI: 0000000000001042 RDI: 0000000000001043
RBP: ffffc900031977b0 R08: ffffffff82d8ac12 R09: fffffbfff1bc8b5e
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 1ffff1100faa14cf R14: ffff888059ef401c R15: ffff88807d50a678
FS:  00007f6e886a96c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7fb91af6e4 CR3: 000000004ffbf000 CR4: 00000000003506e0
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:3462 [inline]
 open_last_lookups fs/namei.c:3532 [inline]
 path_openat+0x130a/0x2f20 fs/namei.c:3739
 do_filp_open+0x21c/0x460 fs/namei.c:3769
 do_sys_openat2+0x13b/0x500 fs/open.c:1253
 do_sys_open fs/open.c:1269 [inline]
 __do_sys_openat fs/open.c:1285 [inline]
 __se_sys_openat fs/open.c:1280 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1280
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6e8a136ea9
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:00007f6e886a90c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f6e8a264f80 RCX: 00007f6e8a136ea9
RDX: 000000000000275a RSI: 0000000020000000 RDI: ffffffffffffff9c
RBP: 00007f6e8a1834a4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000000b R14: 00007f6e8a264f80 R15: 00007ffe2fb798e8
 </TASK>

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/04/19 09:02 linux-5.15.y c52b9710c83d af24b050 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in udf_new_block
* Struck through repros no longer work on HEAD.