lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <b701e24f-9689-4573-b24f-a2bb8ee5bd72@kernel.org>
Date: Tue, 11 Feb 2025 15:37:01 +0800
From: Chao Yu <chao@...nel.org>
To: syzbot <syzbot+82064afd8bd59070fc22@...kaller.appspotmail.com>,
 jaegeuk@...nel.org, linux-f2fs-devel@...ts.sourceforge.net,
 linux-kernel@...r.kernel.org, syzkaller-bugs@...glegroups.com,
 yuchao0@...wei.com
Cc: chao@...nel.org
Subject: Re: [syzbot] [f2fs?] WARNING in f2fs_rename2

#syz dup: WARNING in f2fs_unlink

On 11/26/24 08:00, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    228a1157fb9f Merge tag '6.13-rc-part1-SMB3-client-fixes' o..
> git tree:       upstream
> console+strace: https://syzkaller.appspot.com/x/log.txt?x=1374b6e8580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=402159daa216c89d
> dashboard link: https://syzkaller.appspot.com/bug?extid=82064afd8bd59070fc22
> compiler:       Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1774b6e8580000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1335975f980000
> 
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/d32a8e8c5aae/disk-228a1157.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/28d5c070092e/vmlinux-228a1157.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/45af4bfd9e8e/bzImage-228a1157.xz
> mounted in repro: https://storage.googleapis.com/syzbot-assets/1e2338334d9b/mount_0.gz
> 
> The issue was bisected to:
> 
> commit 4c8ff7095bef64fc47e996a938f7d57f9e077da3
> Author: Chao Yu <yuchao0@...wei.com>
> Date:   Fri Nov 1 10:07:14 2019 +0000
> 
>     f2fs: support data compression
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=150076e8580000
> final oops:     https://syzkaller.appspot.com/x/report.txt?x=170076e8580000
> console output: https://syzkaller.appspot.com/x/log.txt?x=130076e8580000
> 
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+82064afd8bd59070fc22@...kaller.appspotmail.com
> Fixes: 4c8ff7095bef ("f2fs: support data compression")
> 
> F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4
> ------------[ cut here ]------------
> WARNING: CPU: 1 PID: 5835 at fs/inode.c:407 drop_nlink+0xc4/0x110 fs/inode.c:407
> Modules linked in:
> CPU: 1 UID: 0 PID: 5835 Comm: syz-executor143 Not tainted 6.12.0-syzkaller-08446-g228a1157fb9f #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
> RIP: 0010:drop_nlink+0xc4/0x110 fs/inode.c:407
> Code: bb 70 07 00 00 be 08 00 00 00 e8 27 d8 e5 ff f0 48 ff 83 70 07 00 00 5b 41 5c 41 5e 41 5f 5d c3 cc cc cc cc e8 9d 40 7e ff 90 <0f> 0b 90 eb 83 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c 5c ff ff ff
> RSP: 0018:ffffc90003e377d0 EFLAGS: 00010293
> RAX: ffffffff82170c43 RBX: 1ffff1100efa8122 RCX: ffff88802cca0000
> RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
> RBP: 0000000000000000 R08: ffffffff82170bc3 R09: 1ffff1100efa81af
> R10: dffffc0000000000 R11: ffffed100efa81b0 R12: ffff888077d40910
> R13: dffffc0000000000 R14: ffff888077d408c8 R15: dffffc0000000000
> FS:  000055558e8f7380(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 000000000066c7e0 CR3: 000000007ac16000 CR4: 00000000003526f0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
> Call Trace:
>  <TASK>
>  f2fs_i_links_write fs/f2fs/f2fs.h:3127 [inline]
>  f2fs_rename fs/f2fs/namei.c:999 [inline]
>  f2fs_rename2+0x1b6c/0x2c30 fs/f2fs/namei.c:1272
>  vfs_rename+0xbdb/0xf00 fs/namei.c:5067
>  do_renameat2+0xd94/0x13f0 fs/namei.c:5224
>  __do_sys_renameat2 fs/namei.c:5258 [inline]
>  __se_sys_renameat2 fs/namei.c:5255 [inline]
>  __x64_sys_renameat2+0xce/0xe0 fs/namei.c:5255
>  do_syscall_x64 arch/x86/entry/common.c:52 [inline]
>  do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
>  entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7fea51a18679
> 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:00007ffd47104348 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
> RAX: ffffffffffffffda RBX: 00007ffd47104518 RCX: 00007fea51a18679
> RDX: 0000000000000004 RSI: 00000000200000c0 RDI: 0000000000000005
> RBP: 00007fea51a9b610 R08: 0000000000000000 R09: 00007ffd47104518
> R10: 0000000020000100 R11: 0000000000000246 R12: 0000000000000001
> R13: 00007ffd47104508 R14: 0000000000000001 R15: 0000000000000001
>  </TASK>
> 
> 
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@...glegroups.com.
> 
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
> 
> If the report is already addressed, let syzbot know by replying with:
> #syz fix: exact-commit-title
> 
> If you want syzbot to run the reproducer, reply with:
> #syz test: git://repo/address.git branch-or-commit-hash
> If you attach or paste a git patch, syzbot will apply it before testing.
> 
> If you want to overwrite report's subsystems, reply with:
> #syz set subsystems: new-subsystem
> (See the list of subsystem names on the web dashboard)
> 
> If the report is a duplicate of another one, reply with:
> #syz dup: exact-subject-of-another-report
> 
> If you want to undo deduplication, reply with:
> #syz undup


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ