syzbot
WARNING in do_open_execat (2)
Status:
upstream: reported C repro on 2023/10/13 04:40
Bug presence:
origin:upstream
Labels:
missing-backport
[Documentation on labels]
Reported-by: syzbot+e5c24ff201100b18d690@syzkaller.appspotmail.com
First crash: 1036d, last: 25d
Fix commit to backport
(bisect log) :
tree: upstream
commit 7ffa8f3d30236e0ab897c30bdb01224ff1fe1c89
Author: Matthew Wilcox (Oracle) <willy@infradead.org>
Date: Mon Jan 15 07:20:25 2024 +0000
fs: Remove NTFS classic
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Last patch testing requests (10)
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Fix bisection attempts (5)
Sample crash report:
ntfs: (device loop0): ntfs_read_block(): Failed to read from inode 0xa, attribute type 0x80, vcn 0x1, offset 0x0 because its location on disk could not be determined even after retrying (error code -5).
ntfs: (device loop0): ntfs_mapping_pairs_decompress(): Corrupt attribute.
ntfs: volume version 3.1.
process 'syz-executor279' launched './file1' with NULL argv: empty string added
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4165 at fs/exec.c:928 do_open_execat+0x631/0x740 fs/exec.c:928
Modules linked in:
CPU: 0 PID: 4165 Comm: syz-executor279 Not tainted 5.15.185-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:do_open_execat+0x631/0x740 fs/exec.c:928
Code: 00 48 83 c4 08 49 bd 00 00 00 00 00 fc ff df e9 df fc ff ff e8 90 a5 ae ff 49 c7 c6 e6 ff ff ff e9 ab fc ff ff e8 7f a5 ae ff <0f> 0b e9 b0 fc ff ff e8 03 50 d8 07 44 89 e1 80 e1 07 fe c1 38 c1
RSP: 0018:ffffc90002e8fc40 EFLAGS: 00010293
RAX: ffffffff81c91ca1 RBX: ffff8880235cf900 RCX: ffff88807b708000
RDX: 0000000000000000 RSI: 00000000000001ff RDI: 0000000000008fff
RBP: ffffc90002e8fd10 R08: dffffc0000000000 R09: ffffc90002e8fac0
R10: fffff520005d1f5a R11: 1ffff920005d1f58 R12: ffff888070e25de0
R13: dffffc0000000000 R14: 00000000000001ff R15: ffff88801a9ee600
FS: 000055557c9b3380(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f38d902e000 CR3: 000000001f2c1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
bprm_execve+0x511/0x17d0 fs/exec.c:1827
do_execveat_common+0x51e/0x6d0 fs/exec.c:1957
do_execve fs/exec.c:2027 [inline]
__do_sys_execve fs/exec.c:2103 [inline]
__se_sys_execve fs/exec.c:2098 [inline]
__x64_sys_execve+0x8e/0xa0 fs/exec.c:2098
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f515732b6f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 61 17 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:00007fff0b30ce18 EFLAGS: 00000246 ORIG_RAX: 000000000000003b
RAX: ffffffffffffffda RBX: 00007fff0b30cff8 RCX: 00007f515732b6f9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00002000000000c0
RBP: 00007f51573bd610 R08: 000000000001ec65 R09: 0000000000000000
R10: 00007fff0b30cce0 R11: 0000000000000246 R12: 0000000000000001
R13: 00007fff0b30cfe8 R14: 0000000000000001 R15: 0000000000000001
</TASK>
* Struck through repros no longer work on HEAD.