From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5B5C0C4332F for ; Thu, 8 Dec 2022 19:36:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229564AbiLHTgj (ORCPT ); Thu, 8 Dec 2022 14:36:39 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54662 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229522AbiLHTgi (ORCPT ); Thu, 8 Dec 2022 14:36:38 -0500 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1E1B26C71B for ; Thu, 8 Dec 2022 11:36:37 -0800 (PST) Received: by mail-il1-f198.google.com with SMTP id g7-20020a056e021a2700b0030326ba44e4so2185373ile.13 for ; Thu, 08 Dec 2022 11:36:37 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=CizNqS/GZTonrF3LdGeiQ8J1oTN8lBn64H60Jh+Cr8o=; b=NT2IzmHCFqS6u9zqvMptsUAbv+lewkOl7ukctPFY95CYgTOlvV9lnive6evQAs8kzJ d01wNjf+pmk6QP3mUSHYgBS4cNjsySHT4JPRgTj34/QNrlUbos5KeGCMy2i3l7khWBe3 8p+gXXeVyVh3rq58gVtPdSi8MX3hkTL5Q8ipX4tweFth0n1icl1gGsQ5DKYIRQ7gsI6K qEFskNBulPZh67DJghR6Poc44g6lrfqSZE5H0mQBtYnKx0KB2uVchuZdl0t0oQkugnhu zeZ8Fk9E1ou35VOevFJ5vx2h1ASdY70N4pdAJ1HH3+8b3Fpduj3nzE3uhouSkNPdZngo EN/A== X-Gm-Message-State: ANoB5plVqW+Xyw/pzcbxApuZwmB28E0C9pbBNHm3rgICtz6AeeI/+sAu ItchP8c/ovGttppyzy3uRc3VzeZnoIFCx5uuJsn8/J74GOAr X-Google-Smtp-Source: AA0mqf4jf5OoHwY6c9nj2dvqXqy/9f37I7axxzbBz8Q0+STPiSzKg1CSgbCb5dseyGD24HYH4VM1jCVHfqfucsDoXxddU4xQUSj3 MIME-Version: 1.0 X-Received: by 2002:a5d:9e4a:0:b0:6de:42ff:d96b with SMTP id i10-20020a5d9e4a000000b006de42ffd96bmr32906301ioi.58.1670528196432; Thu, 08 Dec 2022 11:36:36 -0800 (PST) Date: Thu, 08 Dec 2022 11:36:36 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000bc5b5a05ef56276d@google.com> Subject: [syzbot] WARNING in _copy_from_iter From: syzbot To: davem@davemloft.net, edumazet@google.com, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 591cd61541b9 Add linux-next specific files for 20221207 git tree: linux-next console+strace: https://syzkaller.appspot.com/x/log.txt?x=15d12929880000 kernel config: https://syzkaller.appspot.com/x/.config?x=8b2d3e63e054c24f dashboard link: https://syzkaller.appspot.com/bug?extid=d43608d061e8847ec9f3 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=172536fb880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12d00a7d880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/bc862c01ec56/disk-591cd615.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/8f9b93f8ed2f/vmlinux-591cd615.xz kernel image: https://storage.googleapis.com/syzbot-assets/9d5cb636d548/bzImage-591cd615.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+d43608d061e8847ec9f3@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 5086 at lib/iov_iter.c:629 _copy_from_iter+0x2ed/0xf70 lib/iov_iter.c:629 Modules linked in: CPU: 0 PID: 5086 Comm: syz-executor371 Not tainted 6.1.0-rc8-next-20221207-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:_copy_from_iter+0x2ed/0xf70 lib/iov_iter.c:629 Code: 77 fd 44 89 fb e9 33 ff ff ff e8 be 34 77 fd be 79 02 00 00 48 c7 c7 e0 59 a6 8a e8 fd 6f b0 fd e9 17 fe ff ff e8 a3 34 77 fd <0f> 0b 45 31 ff e9 7b ff ff ff e8 94 34 77 fd 31 ff 89 ee e8 fb 30 RSP: 0018:ffffc90003e1f828 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888026548000 RSI: ffffffff840a6e5d RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003e1fd00 R13: ffff888079c498f8 R14: ffffc90003e1fd00 R15: 0000000000000000 FS: 0000555557073300(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000045b630 CR3: 000000007d92a000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: copy_from_iter include/linux/uio.h:187 [inline] copy_from_iter_full include/linux/uio.h:194 [inline] tipc_msg_build+0x2d4/0x10a0 net/tipc/msg.c:404 __tipc_sendmsg+0xada/0x1870 net/tipc/socket.c:1505 tipc_connect+0x57b/0x6b0 net/tipc/socket.c:2624 __sys_connect_file+0x153/0x1a0 net/socket.c:1976 __sys_connect+0x165/0x1a0 net/socket.c:1993 __do_sys_connect net/socket.c:2003 [inline] __se_sys_connect net/socket.c:2000 [inline] __x64_sys_connect+0x73/0xb0 net/socket.c:2000 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fac68eeeb19 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe4214d778 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fac68eeeb19 RDX: 0000000000000010 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007fac68eb2cc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fac68eb2d50 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 --- 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. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches