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 1B7B55D464 for ; Fri, 8 Mar 2024 17:34:28 +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=1709919270; cv=none; b=XZ4XVXSwTHkTAy+p8onT4l15GuQi3RFrGVDi6UF5kL6+vDgSr4c57sPGGZKfCYKBJdbg91Lyz2kvanyVpTUwlLp52rhb3/Y+4rmPFwxQG9CbTsnbHWbHC8K+iTkoJ8PDKEMK3cTEwm30lrrFAh4OO4fzZocKLx9vvLVwuB2gWeU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709919270; c=relaxed/simple; bh=8e9/e9NFm5ntuPCTH/0anSEfGQKkPWqlsbkyI1OBVHU=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=WfUtbBBeSutHtHYLLm9gwy3c1AD5ruPWW+eYOV7w+wLUSt/MQWNwhkk82/p0a2I6rnsWVjlCmB0ev2WV8kNw9aI0dZk0ttz+Tx1ZQOtTa7Q9mIEIyR2wz8tH4esyA7CBuDIsts8/zdIVBxf2J3pEY9iFTfJ5p3EIZNr3sXjyxSw= 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-7c874fb29b9so251062239f.3 for ; Fri, 08 Mar 2024 09:34:28 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1709919268; x=1710524068; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=3PxTyDbGvCgebErQBNv/Wuktri5b5uOMubf1v6wI+Rk=; b=Qq6e+16f3H38Z1K0v3Z8j51bGCcvIhO5qrK56SRpuTRFoMzDc1W6ffI76st//y+ql5 mtsI6FaqvRaFkGhNKjPgcQMr/xkLgxVHZjfL6p/gbFre8dpA8SS+L5qqi9mU4DUjPuJL iwSDPXzk6zDq+4RWzSaKxTC/F1izCcqYUFYLMPqnuoqU2f1TVTVUbiQnTccPppM4t7DU laD/Fp3hahaJYMfi8DRL8oJ01eWJ58OJ3fU41AvyQOWaidc65spBbMoLvFMJKqlmec1o IGmiS2HbhLF4tc6N/QMYHLZwUs4GAQYmt5tmrRg3B9msf2NcZ44F3XQmEEMpiIY5V1E4 H0nA== X-Forwarded-Encrypted: i=1; AJvYcCV/2OqEhMmrddxNFSILOKixNsBalGhT+TtcEmwRM9SjE8Ap00uiVW2kEVyeQSfGtZC/ql8r7ubg9LzIow1h+2UC0wt6mf9r X-Gm-Message-State: AOJu0Yyt+48/QYQMl31HPMzYmOVyeuCyb/njL9SkQMGTViWSGX7a5a41 18pyjjA2WK3zaV86z9Wr1+8WpH160m4RkHBK6EhJrxSlfGuRpZUIkjRaHg0LwPjpf0P06txqH9k +2W67LPzcIM1PIcwVApBQCILVWlR3DabxtTP2zFPldkZr6O79o8x/YnA= X-Google-Smtp-Source: AGHT+IGKOvplZ3C2VE4bK9k+BTiEDF/fOksVRR7zDG2cmmTkQ34nJIglWHpJL6Ea7GUZTj2aurqZFRiEl4MX2uSY89ezbjAGDjRQ Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:1604:b0:7c8:65ae:84fd with SMTP id x4-20020a056602160400b007c865ae84fdmr150802iow.0.1709919268281; Fri, 08 Mar 2024 09:34:28 -0800 (PST) Date: Fri, 08 Mar 2024 09:34:28 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000094b65a0613299ae7@google.com> Subject: [syzbot] [net?] WARNING in sk_nulls_del_node_init_rcu From: syzbot To: davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: c055fc00c07b net/rds: fix WARNING in rds_conn_connect_if_d.. git tree: net console output: https://syzkaller.appspot.com/x/log.txt?x=16aa17f2180000 kernel config: https://syzkaller.appspot.com/x/.config?x=fad652894fc96962 dashboard link: https://syzkaller.appspot.com/bug?extid=12c506c1aae251e70449 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: https://storage.googleapis.com/syzbot-assets/c39eb6fb3ad1/disk-c055fc00.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/110f1226eb89/vmlinux-c055fc00.xz kernel image: https://storage.googleapis.com/syzbot-assets/1303e2df5cc4/bzImage-c055fc00.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+12c506c1aae251e70449@syzkaller.appspotmail.com R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007f3b817abf80 R15: 00007ffd3beb57b8 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 23948 at include/net/sock.h:799 sk_nulls_del_node_init_rcu+0x166/0x1a0 include/net/sock.h:799 Modules linked in: CPU: 0 PID: 23948 Comm: syz-executor.2 Not tainted 6.8.0-rc6-syzkaller-00159-gc055fc00c07b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:sk_nulls_del_node_init_rcu+0x166/0x1a0 include/net/sock.h:799 Code: e8 7f 71 c6 f7 83 fb 02 7c 25 e8 35 6d c6 f7 4d 85 f6 0f 95 c0 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc e8 1b 6d c6 f7 90 <0f> 0b 90 eb b2 e8 10 6d c6 f7 4c 89 e7 be 04 00 00 00 e8 63 e7 d2 RSP: 0018:ffffc900032d7848 EFLAGS: 00010246 RAX: ffffffff89cd0035 RBX: 0000000000000001 RCX: 0000000000040000 RDX: ffffc90004de1000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: 1ffff1100439ac26 R08: ffffffff89ccffe3 R09: 1ffff1100439ac28 R10: dffffc0000000000 R11: ffffed100439ac29 R12: ffff888021cd6140 R13: dffffc0000000000 R14: ffff88802a9bf5c0 R15: ffff888021cd6130 FS: 00007f3b823f16c0(0000) GS:ffff8880b9400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3b823f0ff8 CR3: 000000004674a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __inet_hash_connect+0x140f/0x20b0 net/ipv4/inet_hashtables.c:1139 dccp_v6_connect+0xcb9/0x1480 net/dccp/ipv6.c:956 __inet_stream_connect+0x262/0xf30 net/ipv4/af_inet.c:678 inet_stream_connect+0x65/0xa0 net/ipv4/af_inet.c:749 __sys_connect_file net/socket.c:2048 [inline] __sys_connect+0x2df/0x310 net/socket.c:2065 __do_sys_connect net/socket.c:2075 [inline] __se_sys_connect net/socket.c:2072 [inline] __x64_sys_connect+0x7a/0x90 net/socket.c:2072 do_syscall_64+0xf9/0x240 entry_SYSCALL_64_after_hwframe+0x6f/0x77 RIP: 0033:0x7f3b8167dda9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3b823f10c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 00007f3b817abf80 RCX: 00007f3b8167dda9 RDX: 000000000000001c RSI: 0000000020000040 RDI: 0000000000000003 RBP: 00007f3b823f1120 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 000000000000000b R14: 00007f3b817abf80 R15: 00007ffd3beb57b8 --- 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