From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 900FD4414 for ; Sat, 14 Sep 2024 04:00:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726286430; cv=none; b=DD4awWwjh4SJo/y0DNPukuXziVta57oa5kYs0OIkxDAw99wHxo4RWosK88VfvY9Y7s+t7iQTAtIseZhtj2CAjuucKNHVgbBBxkj8aVwifGjg2iyMkRfRd91pG2uIqhputFgupD3IE9R5d1XbRBgKBAM1B4rCGu4S38uJVDhymIY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1726286430; c=relaxed/simple; bh=fZv/ftlALop4h6I557vAed5tUBZOdf2pPSg3yn31628=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Bbm26PGf4p1M/KUxO8Ocu9d0U+HjCOTk0IdsidCGEynbcXkuNz9kJpgUGYfMLnNshX3tvaukzxkllb7ADRMSbXer1+3ICe0OoDqL868AjP77tpwN7S1omt3IlIBZOnwkkMm1FVjiwGQiipVEVMSdSJzXb5++ioDhsOi3nqzKWcQ= 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=209.85.166.70 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-f70.google.com with SMTP id ca18e2360f4ac-82ce2629e40so433598039f.2 for ; Fri, 13 Sep 2024 21:00:28 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726286428; x=1726891228; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=bz5WZJ4tHVtePKnHi+SbP+S0EHx46AHTGM3wRpRV1ZU=; b=EO6pGkx080L5Dh6Sa0X7Q3tvzK1P8KkzsF18lVaGRNim6gtkZLCI/0BzRhj35Eld/V Z0bZ1T84f7qMyWxhXUbQG5pRosgNh300Ecg2RL3P/P13wl+7Muq8xeHyZr4/PMHDPCp2 x7Jfi9amp0rVrtBnNhTUDaARcOOe2B1sk91h8JVrDq2R3GpOlFdK0QqGze5Wi5iTgzZo c2gTcGU4zMiXcewT3ajIU22Zdodt3ZVaDUbHIiHHY/YDJatZdFWE5QP6/HYFXKBCwzNv LGmoHIdWVY/U/yA0p+kA6SS/O9CsnATjtycykClzw9xVzCuNv+vheBk/6Ary1HjvNbhY Y8uQ== X-Forwarded-Encrypted: i=1; AJvYcCUFJONO+hTxzB18YGuXtx8il9k7IW6/ofe4Sd3dVwo2yRe1iWThaKUX3vDRY9cO/OeEoH8E@lists.linux.dev X-Gm-Message-State: AOJu0YwRGDjwlEQbKxCX63xCzZ2ZnbNXlViO+zXmpQgJrQsFkxsJvlVM hQDlPL6pDvObXtsqzgqlnJHHsMOSoR6yDc+qIYVG573YLjzR//yrkmSjwIc5i6UkHdp3fbWf4uE zGHK5796dK3/Grs/XFZilC/tcERiA2uJWYWW7yR7r/qNQHQDfpwSG3pg= X-Google-Smtp-Source: AGHT+IE9/reacg2tKFboN78px8MUZJfQuDgk58r8fMFV0V8YdjqZ2DN3jpSugRI00e1A4TiA+SL/FJ5p3WnTJ4rhkU2aC48Mv2pQ Precedence: bulk X-Mailing-List: v9fs@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:154f:b0:3a0:4250:165f with SMTP id e9e14a558f8ab-3a0847d0c17mr91913705ab.0.1726286427673; Fri, 13 Sep 2024 21:00:27 -0700 (PDT) Date: Fri, 13 Sep 2024 21:00:27 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004d651706220c61a5@google.com> Subject: [syzbot] [v9fs?] BUG: corrupted list in p9_fd_cancelled (3) From: syzbot To: asmadeus@codewreck.org, ericvh@kernel.org, linux-kernel@vger.kernel.org, linux_oss@crudebyte.com, lucho@ionkov.net, syzkaller-bugs@googlegroups.com, v9fs@lists.linux.dev Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: e936e7d4a83b Merge tag 'spi-fix-v6.11-rc7' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=136467c7980000 kernel config: https://syzkaller.appspot.com/x/.config?x=28869f34c32848cf dashboard link: https://syzkaller.appspot.com/bug?extid=15a08eabe3d3838fb641 compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/d80a1fd7fbf1/disk-e936e7d4.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7096765887fd/vmlinux-e936e7d4.xz kernel image: https://storage.googleapis.com/syzbot-assets/703093aff5a7/bzImage-e936e7d4.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+15a08eabe3d3838fb641@syzkaller.appspotmail.com list_del corruption, ffff88805af61610->next is LIST_POISON1 (dead000000000100) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:56! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 10605 Comm: syz.0.1206 Not tainted 6.11.0-rc7-syzkaller-00133-ge936e7d4a83b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:__list_del_entry_valid_or_report+0x108/0x1c0 lib/list_debug.c:56 Code: c7 c7 e0 fe b0 8b e8 97 5e de fc 90 0f 0b 48 c7 c7 40 ff b0 8b e8 88 5e de fc 90 0f 0b 48 c7 c7 a0 ff b0 8b e8 79 5e de fc 90 <0f> 0b 48 89 ca 48 c7 c7 00 00 b1 8b e8 67 5e de fc 90 0f 0b 48 89 RSP: 0018:ffffc9000455f6d0 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff88805af61550 RCX: ffffc9000f602000 RDX: 0000000000000000 RSI: ffffffff816ceea6 RDI: 0000000000000005 RBP: ffff888025047800 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000001 R11: 0000000000000001 R12: ffff88805c934830 R13: 0000000000000005 R14: ffff88805af61610 R15: ffff88805af61618 FS: 00007fedb6f3b6c0(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f375bdfc408 CR3: 000000001eab8000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry_valid include/linux/list.h:124 [inline] __list_del_entry include/linux/list.h:215 [inline] list_del include/linux/list.h:229 [inline] p9_fd_cancelled+0xa2/0x2a0 net/9p/trans_fd.c:736 p9_client_flush.isra.0+0x34b/0x420 net/9p/client.c:618 p9_client_rpc+0xaef/0xc10 net/9p/client.c:741 p9_client_version net/9p/client.c:930 [inline] p9_client_create+0xcc8/0x1210 net/9p/client.c:1034 v9fs_session_init+0x1f8/0x1a80 fs/9p/v9fs.c:410 v9fs_mount+0xc6/0xa50 fs/9p/vfs_super.c:122 legacy_get_tree+0x109/0x220 fs/fs_context.c:662 vfs_get_tree+0x8f/0x380 fs/super.c:1800 do_new_mount fs/namespace.c:3472 [inline] path_mount+0x14e6/0x1f20 fs/namespace.c:3799 do_mount fs/namespace.c:3812 [inline] __do_sys_mount fs/namespace.c:4020 [inline] __se_sys_mount fs/namespace.c:3997 [inline] __x64_sys_mount+0x294/0x320 fs/namespace.c:3997 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fedb617def9 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:00007fedb6f3b038 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fedb6336130 RCX: 00007fedb617def9 RDX: 0000000020000b80 RSI: 0000000020000040 RDI: 0000000000000000 RBP: 00007fedb61f0b76 R08: 0000000020000180 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fedb6336130 R15: 00007ffd5f34b4f8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__list_del_entry_valid_or_report+0x108/0x1c0 lib/list_debug.c:56 Code: c7 c7 e0 fe b0 8b e8 97 5e de fc 90 0f 0b 48 c7 c7 40 ff b0 8b e8 88 5e de fc 90 0f 0b 48 c7 c7 a0 ff b0 8b e8 79 5e de fc 90 <0f> 0b 48 89 ca 48 c7 c7 00 00 b1 8b e8 67 5e de fc 90 0f 0b 48 89 RSP: 0018:ffffc9000455f6d0 EFLAGS: 00010282 RAX: 000000000000004e RBX: ffff88805af61550 RCX: ffffc9000f602000 RDX: 0000000000000000 RSI: ffffffff816ceea6 RDI: 0000000000000005 RBP: ffff888025047800 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000080000001 R11: 0000000000000001 R12: ffff88805c934830 R13: 0000000000000005 R14: ffff88805af61610 R15: ffff88805af61618 FS: 00007fedb6f3b6c0(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f375bdfc408 CR3: 000000001eab8000 CR4: 00000000003506f0 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