From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 92F391E5B99 for ; Tue, 11 Feb 2025 07:37:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739259444; cv=none; b=Nw0Y4hIrgmn8311Ig5eXvCB3CARYATKPQumJ8jCL03Md0j0cAh7aROJatp56OwQDdiWdfq1duXCuXpFeZIdHKs9e3tbpAqh2rWaWnziALL5g+DNHfMMRbVxWzFqrq73CpQ+3hzx46LC4+3T8i1vYibGpOjsJ2NCjk99uUQxWTrM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739259444; c=relaxed/simple; bh=G9ln38LUgIQm/l5jvzediKDFNg8NNLa3gI7eEO2KkOw=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=CW0Ck+epryuHYQlgCwLqO6W8qkKHcFeW+eIRCpcd6JFoLlUifTdXwo/MMcalUfoJMqnFrBdlyfJrf/x1V2lNwo1eAK9seHw+YMTHQYCmKHVDCG2rrnBEYgPCZfRYvQ2I6t/XaksRC0YHWFnXMwnpU+dEyRp9ZYJoF6toos0EFI0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IFD8FuWE; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IFD8FuWE" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A7DAEC4CEDD; Tue, 11 Feb 2025 07:37:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1739259444; bh=G9ln38LUgIQm/l5jvzediKDFNg8NNLa3gI7eEO2KkOw=; h=Date:Cc:Subject:To:References:From:In-Reply-To:From; b=IFD8FuWEaJ1z74XDDYyz/VOeYVsHHRpS+5a2jBJ9xxwlZKHJqHOY/33keUOg4QZdV yVbjQbIp15MwTB6HVrmcR/zKDJeA6Gk/c5IJr5RvOlsVrscDmVvn7REmOwJTB7npQz xWj/Rpu0NibRf0rr5EkGTSYheAWUXQBLg3Z78cpFnBPgYOC8TY7QKJ2EURPdrCfCmr dUQ7HXb0C3z7MU2l1cB4lt2ub/t8byv5/Q77uZmDXgB5S1t+gx/t4dqe4a17hzESZR zHm79YEn6H/P1pjBynhnuQ/udSs2DG02yjBYHA48t+5VxwyXYxq+05U4Hi1hE7pK83 bTksTNz7xGjtQ== Message-ID: Date: Tue, 11 Feb 2025 15:37:01 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: chao@kernel.org Subject: Re: [syzbot] [f2fs?] WARNING in f2fs_rename2 To: syzbot , jaegeuk@kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, yuchao0@huawei.com References: <67450f9a.050a0220.21d33d.0003.GAE@google.com> Content-Language: en-US From: Chao Yu In-Reply-To: <67450f9a.050a0220.21d33d.0003.GAE@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit #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 > 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@syzkaller.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: > > 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 > > > > --- > 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@googlegroups.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