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 X-Spam-Level: X-Spam-Status: No, score=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 607F5C2BC61 for ; Tue, 30 Oct 2018 19:28:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1E8652080A for ; Tue, 30 Oct 2018 19:28:07 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 1E8652080A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726161AbeJaEWw (ORCPT ); Wed, 31 Oct 2018 00:22:52 -0400 Received: from mail-it1-f200.google.com ([209.85.166.200]:44601 "EHLO mail-it1-f200.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725812AbeJaEWv (ORCPT ); Wed, 31 Oct 2018 00:22:51 -0400 Received: by mail-it1-f200.google.com with SMTP id r188-v6so14061516itb.9 for ; Tue, 30 Oct 2018 12:28:04 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=Wz4XpiFGNP9Kg01Ks7YSi1d2XiL6stRYIyvDUvgc50M=; b=XbUs3riz+B/BY6paz97e6zQdgSU6tX5s2CeABOoRk6yCwLITgrzGFPqplPnd6FDql7 uegomEnHW/nRw5gg2OTmmkx3DV+nxflub0hUaBeil2sljEt8JOrf72KZt2tE3gBhSMTH w68o7MWI56M5RVovs4QxD63nVxzjBhi/wVcZH+M9gbh6q+ZfUiJLNrnnv8+XYx6P1mKu NNptdwbaZpNAyrBbHniP3ZGOm8Amc9vpT+gq/qtRKB8Cxx0wWygqfPBI0n3cu2aYGPXL fA5G/GIF7dzugAoo2DuQ2JwAqBkx1S4eMWUi1odXzVjQaxczp1QSvnPgrFHIY1a6gIK3 3dVA== X-Gm-Message-State: AGRZ1gIsbOwNOlijpZlmphp8RIjpRI3RaEikoUc6CP0XafGgN14+pcU/ o2kPOaRyDZs4dsaVaWaRFAkUwpQVlkM/YZWYDj5YP4BoQi0H X-Google-Smtp-Source: AJdET5frWL305cPC3BrQT4Rwkp7U5LGHeH8Pgrorhkv561VFaWXIxRG7UyuM512YVh2Bzq6JcPzs+TpY1hUWiYLHoceg3fB3stYa MIME-Version: 1.0 X-Received: by 2002:a5e:9805:: with SMTP id s5-v6mr1621ioj.19.1540927684098; Tue, 30 Oct 2018 12:28:04 -0700 (PDT) Date: Tue, 30 Oct 2018 12:28:04 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003c6b7b0579772ff3@google.com> Subject: WARNING in rds_message_alloc_sgs From: syzbot To: davem@davemloft.net, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, rds-devel@oss.oracle.com, santosh.shilimkar@oracle.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 6201f31a39f8 Add linux-next specific files for 20181030 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=1397d06d400000 kernel config: https://syzkaller.appspot.com/x/.config?x=2a22859d870756c1 dashboard link: https://syzkaller.appspot.com/bug?extid=26de17458aeda9d305d8 compiler: gcc (GCC) 8.0.1 20180413 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10bb52eb400000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=118bdfc5400000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+26de17458aeda9d305d8@syzkaller.appspotmail.com WARNING: CPU: 0 PID: 19789 at net/rds/message.c:316 rds_message_alloc_sgs+0x10c/0x160 net/rds/message.c:316 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 19789 Comm: syz-executor827 Not tainted 4.19.0-next-20181030+ #101 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x244/0x39d lib/dump_stack.c:113 panic+0x2ad/0x55c kernel/panic.c:188 __warn.cold.8+0x20/0x45 kernel/panic.c:540 report_bug+0x254/0x2d0 lib/bug.c:186 fixup_bug arch/x86/kernel/traps.c:178 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:271 do_invalid_op+0x36/0x40 arch/x86/kernel/traps.c:290 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:969 RIP: 0010:rds_message_alloc_sgs+0x10c/0x160 net/rds/message.c:316 Code: c0 74 04 3c 03 7e 6c 44 01 ab 78 01 00 00 e8 2b 9e 35 fa 4c 89 e0 48 83 c4 08 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 14 9e 35 fa <0f> 0b 31 ff 44 89 ee e8 18 9f 35 fa 45 85 ed 75 1b e8 fe 9d 35 fa RSP: 0018:ffff8801c51b7460 EFLAGS: 00010293 RAX: ffff8801bc412080 RBX: ffff8801d7bf4040 RCX: ffffffff8749c9e6 RDX: 0000000000000000 RSI: ffffffff8749ca5c RDI: 0000000000000004 RBP: ffff8801c51b7490 R08: ffff8801bc412080 R09: ffffed003b5c5b67 R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: 0000000000000000 R13: 000000000007165c R14: 000000000007165c R15: 0000000000000005 rds_cmsg_rdma_args+0x82d/0x1510 net/rds/rdma.c:623 rds_cmsg_send net/rds/send.c:971 [inline] rds_sendmsg+0x19a2/0x3180 net/rds/send.c:1273 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:632 ___sys_sendmsg+0x7fd/0x930 net/socket.c:2117 __sys_sendmsg+0x11d/0x280 net/socket.c:2155 __do_sys_sendmsg net/socket.c:2164 [inline] __se_sys_sendmsg net/socket.c:2162 [inline] __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2162 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x44a859 Code: e8 dc e6 ff ff 48 83 c4 18 c3 0f 1f 80 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 0f 83 6b cb fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1d4710ada8 EFLAGS: 00000297 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000006dcc28 RCX: 000000000044a859 RDX: 0000000000000000 RSI: 0000000020001600 RDI: 0000000000000003 RBP: 00000000006dcc20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000297 R12: 00000000006dcc2c R13: 646e732f7665642f R14: 00007f1d4710b9c0 R15: 00000000006dcd2c Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug is generated by a bot. 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