From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 153CC55E73 for ; Mon, 28 Oct 2024 16:23:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.72 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730132607; cv=none; b=Ox+CUXcsyXeXgu0WsDHaACXONH+jCK+blVj953rwzqbTKUvzPUO1s8pYqsXmT6eXxAVFPCX0q8kbyI6IaXluez8ud/cwlSN4TF9sOF4FaJcFcB2J9NAFaKiziIc7Uu5ad6b2boSpwicbGlzrSSr2G28F+irVsEEQYiK4bRnpkuU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730132607; c=relaxed/simple; bh=KWWSUgavmZeYBvzGGdcQ4JK+soB8sssdz3uvY5BTVTU=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=bZzA42sFf7kCKcp88lpwnYj4Lr52ZzAc4Kv9+Vc6kVfvAkFvihNstAHOevAWYdjB28q2Y6z3GLJB/2Ivvw6PR/fKfhP6SCOIxHZUned6f9xlJnYpHu1+gUkBFmvbZY/JPke2ruPrfFDsFGlsVB4YxYgP/KgOZxn+cB4/2VzxC7s= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f72.google.com with SMTP id ca18e2360f4ac-83aac7e7fd7so458930039f.0 for ; Mon, 28 Oct 2024 09:23:24 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1730132604; x=1730737404; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=kG9B6e846ZPDBlAb5BPpyJk5ZSk3i1+AlWQpqphc6Sw=; b=tz/AbDgcEbl4l2jcxx79gZrIed5NmHakJ9WCw4M6JSOv3J7wQ3zUfkQwn4hWkkqv4d kQTdmGUzLvMiXrn4AAuQIydJ9EijwcwJibxDUTj2w7TcIXERlgCBota3RKV7ZuP55HwD 9graWrx9yAQSrzquvMiI2ype5CELOGiq4NE5YoyIFRPy3ZBsdCQ1SaI0I6ZOIRmFldyL T1GwPdRwnrGBFO3sK7EZISocs2W2QDXEgGqfJ6AxHCU5fIbpy+aM1fQYZAAxNCOHTS2K rf3pMYrFNcV/IjwKdQLAw7z0mCtRCsa7JzFgp/CpH3tLKrbkp1rncXQcv6wE1J3TSGTg X5Qg== X-Forwarded-Encrypted: i=1; AJvYcCUVnkPGXd7vu2os7UkXTzP0CLZ69PULY+s6rQzi9gFWIPWy8izud/7rIneb+sa0XdpkmAJTC9g5ryf6n4g=@vger.kernel.org X-Gm-Message-State: AOJu0YwheKsJmaRLdVUEqU7YNl+RpXIaBgUy1tXW56uPoZabNs9T+l4t HRVBnNG2odyWewPubgU3HR8q8mLs1YfofNJOtmFI4IfrglCldnNNaiI7sA01510TUaX3/VopSSV FOAJm6e1suDtw9sGewYRI7+TY73kuRnhTlHYY9BQfQBhqgZJXdx/bpxM= X-Google-Smtp-Source: AGHT+IHFx2SQFhyYV9myLsFoNcIZAbjaRkp/I8ZSavR75n+lVFW/tQ29LYTriL6xamM2YBNbrdY4UAQQmKJnIs8gwPNm89IVs8qm Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2183:b0:3a3:4391:24e9 with SMTP id e9e14a558f8ab-3a4ed2dfafdmr82600365ab.20.1730132604186; Mon, 28 Oct 2024 09:23:24 -0700 (PDT) Date: Mon, 28 Oct 2024 09:23:24 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <671fba7c.050a0220.21b2f.0006.GAE@google.com> Subject: [syzbot] [ocfs2?] kernel BUG in ocfs2_group_extend From: syzbot To: jlbec@evilplan.org, joseph.qi@linux.alibaba.com, linux-kernel@vger.kernel.org, mark@fasheh.com, ocfs2-devel@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: c2ee9f594da8 KVM: selftests: Fix build on on non-x86 archi.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17baf640580000 kernel config: https://syzkaller.appspot.com/x/.config?x=fc6f8ce8c5369043 dashboard link: https://syzkaller.appspot.com/bug?extid=ce0c7bd35d4b7c7300cd compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image (non-bootable): https://storage.googleapis.com/syzbot-assets/7feb34a89c2a/non_bootable_disk-c2ee9f59.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8a3541902b13/vmlinux-c2ee9f59.xz kernel image: https://storage.googleapis.com/syzbot-assets/a00efacc2604/bzImage-c2ee9f59.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+ce0c7bd35d4b7c7300cd@syzkaller.appspotmail.com loop0: detected capacity change from 32768 to 32767 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/resize.c:308! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5104 Comm: syz.0.0 Not tainted 6.12.0-rc4-syzkaller-00047-gc2ee9f594da8 #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:ocfs2_group_extend+0xb28/0xb30 fs/ocfs2/resize.c:308 Code: ff ff 44 89 f9 80 e1 07 fe c1 38 c1 0f 8c 30 f9 ff ff 4c 89 ff e8 68 c8 69 fe e9 23 f9 ff ff e8 4e 92 31 08 e8 49 03 00 fe 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000b2a7b20 EFLAGS: 00010283 RAX: ffffffff8394d497 RBX: 00000000ffffffff RCX: 0000000000040000 RDX: ffffc9000ba49000 RSI: 000000000000055d RDI: 000000000000055e RBP: ffffc9000b2a7cf0 R08: ffffffff8394cc23 R09: 1ffffffff2039fdd R10: dffffc0000000000 R11: fffffbfff2039fde R12: ffff888041644fb8 R13: dffffc0000000000 R14: 1ffff92001654f74 R15: ffff88804c4d6e00 FS: 00007fd5c99936c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000562c6b6f9b08 CR3: 000000003a86c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ocfs2_ioctl+0x771/0x7d0 fs/ocfs2/ioctl.c:873 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893 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: 0033:0x7fd5c8b7dff9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd5c9993038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fd5c8d36058 RCX: 00007fd5c8b7dff9 RDX: 0000000020000100 RSI: 0000000040046f01 RDI: 0000000000000004 RBP: 00007fd5c8bf0296 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fd5c8d36058 R15: 00007ffd7b458dc8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_group_extend+0xb28/0xb30 fs/ocfs2/resize.c:308 Code: ff ff 44 89 f9 80 e1 07 fe c1 38 c1 0f 8c 30 f9 ff ff 4c 89 ff e8 68 c8 69 fe e9 23 f9 ff ff e8 4e 92 31 08 e8 49 03 00 fe 90 <0f> 0b 66 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 0018:ffffc9000b2a7b20 EFLAGS: 00010283 RAX: ffffffff8394d497 RBX: 00000000ffffffff RCX: 0000000000040000 RDX: ffffc9000ba49000 RSI: 000000000000055d RDI: 000000000000055e RBP: ffffc9000b2a7cf0 R08: ffffffff8394cc23 R09: 1ffffffff2039fdd R10: dffffc0000000000 R11: fffffbfff2039fde R12: ffff888041644fb8 R13: dffffc0000000000 R14: 1ffff92001654f74 R15: ffff88804c4d6e00 FS: 00007fd5c99936c0(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd5c9971f98 CR3: 000000003a86c000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title 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