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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,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 05794C43613 for ; Thu, 20 Jun 2019 12:47:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CB9A42082C for ; Thu, 20 Jun 2019 12:47:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726874AbfFTMrG (ORCPT ); Thu, 20 Jun 2019 08:47:06 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:42497 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726796AbfFTMrG (ORCPT ); Thu, 20 Jun 2019 08:47:06 -0400 Received: by mail-io1-f71.google.com with SMTP id f22so5009575ioj.9 for ; Thu, 20 Jun 2019 05:47:05 -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=iNr4pXoRjHYJxCsQLDFZzgF3wWUq5wqzMUmtkVEWxlA=; b=LDaj+29QXAujbyISKbO+BMsFNLZ9f6dVOjzL0mmsH4QTVVV50G0NMTl5sxF3PzB+Lw eQiKzwmLFDBDA/wGJW8iCHCPrKEw+bA3opCetzN56DzfjjqCU4PESVp7gihxqyCN3My1 vvhovdt3kUKdRv35PfCn9OTWuxp8Ru5YSebhuStgNk1R6iiS0jCggpsFyoSpTP38Wso4 Fln4sogBQE3FxtluU+N5LEqXQdTJWBnmC+aMp3Yv6LWkAH5ra6PNWH6Ne/eek+BBAYaF 6U0mhi1EkEuVQj+UtLxnkGkSBSR3deIlRxBhdtNw2AqBkK+F+JK8hIjILUiGVKltUWV2 XwZA== X-Gm-Message-State: APjAAAV+cHaC25vORLIpjxC4xn/00DKhTZXhH6lkfyGeiNy48yPvRNtB 5aO0rbZyouE5DA9kIp6qGWvU4JXgH9yeda5SJnaGp664Fc8o X-Google-Smtp-Source: APXvYqxBEHjp/DDJw2j8KTmEawpYVu43gY57TO7tXs5XOqKu3i1FHbungXu60i/kZebeYG996fqJaVdfNDLYBo+ixzhSL8MOVyTb MIME-Version: 1.0 X-Received: by 2002:a5e:9701:: with SMTP id w1mr7660813ioj.294.1561034825492; Thu, 20 Jun 2019 05:47:05 -0700 (PDT) Date: Thu, 20 Jun 2019 05:47:05 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000417551058bc0bef9@google.com> Subject: kernel BUG at ./include/linux/scatterlist.h:LINE! From: syzbot To: ast@kernel.org, aviadye@mellanox.com, borisp@mellanox.com, bpf@vger.kernel.org, daniel@iogearbox.net, davejwatson@fb.com, davem@davemloft.net, john.fastabend@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, syzkaller-bugs@googlegroups.com, vakul.garg@nxp.com, yhs@fb.com Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes Sender: bpf-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: bed3c0d8 Merge tag 'for-5.2-rc5-tag' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=138d485ea00000 kernel config: https://syzkaller.appspot.com/x/.config?x=28ec3437a5394ee0 dashboard link: https://syzkaller.appspot.com/bug?extid=ef0daa6ce95facb233c1 compiler: clang version 9.0.0 (/home/glider/llvm/clang 80fee25776c2fb61e74c1ecb1a523375c2500b69) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13175731a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=126947faa00000 The bug was bisected to: commit f295b3ae9f5927e084bd5decdff82390e3471801 Author: Vakul Garg Date: Wed Mar 20 02:03:36 2019 +0000 net/tls: Add support of AES128-CCM based ciphers bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1738b732a00000 final crash: https://syzkaller.appspot.com/x/report.txt?x=14b8b732a00000 console output: https://syzkaller.appspot.com/x/log.txt?x=10b8b732a00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+ef0daa6ce95facb233c1@syzkaller.appspotmail.com Fixes: f295b3ae9f59 ("net/tls: Add support of AES128-CCM based ciphers") RAX: ffffffffffffffda RBX: 00007ffd6d3365b0 RCX: 0000000000441ba9 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 ------------[ cut here ]------------ kernel BUG at ./include/linux/scatterlist.h:97! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 8023 Comm: syz-executor694 Not tainted 5.2.0-rc5+ #3 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:sg_assign_page include/linux/scatterlist.h:97 [inline] RIP: 0010:sg_set_page include/linux/scatterlist.h:119 [inline] RIP: 0010:sk_msg_page_add include/linux/skmsg.h:246 [inline] RIP: 0010:tls_sw_do_sendpage net/tls/tls_sw.c:1170 [inline] RIP: 0010:tls_sw_sendpage+0x11b5/0x11e0 net/tls/tls_sw.c:1229 Code: c1 38 c1 0f 8c 12 fe ff ff 4c 89 f7 e8 14 bb 27 fb e9 05 fe ff ff e8 0a 92 ee fa 44 8b 7c 24 18 e9 b2 fe ff ff e8 fb 91 ee fa <0f> 0b e8 f4 91 ee fa 0f 0b e8 ed 91 ee fa 4c 89 f7 48 c7 c6 87 e5 RSP: 0018:ffff888094adf7c0 EFLAGS: 00010293 RAX: ffffffff86871ff5 RBX: 0000000000000001 RCX: ffff888095bfc300 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888094adf998 R08: ffffffff8687170c R09: fffff9400045851f R10: fffff9400045851f R11: 1ffffd400045851e R12: 0000000000000000 R13: 0000000000000080 R14: ffffea00022c28c0 R15: 1ffff110124d0d01 FS: 0000555556a2f880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc5c9d1f18 CR3: 00000000a8a2c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inet_sendpage+0x16d/0x340 net/ipv4/af_inet.c:815 kernel_sendpage net/socket.c:3642 [inline] sock_sendpage+0xd3/0x120 net/socket.c:940 pipe_to_sendpage+0x23e/0x310 fs/splice.c:449 splice_from_pipe_feed fs/splice.c:500 [inline] __splice_from_pipe+0x2f7/0x8a0 fs/splice.c:624 splice_from_pipe fs/splice.c:659 [inline] generic_splice_sendpage+0x172/0x200 fs/splice.c:829 do_splice_from fs/splice.c:848 [inline] do_splice fs/splice.c:1155 [inline] __do_sys_splice fs/splice.c:1425 [inline] __se_sys_splice+0x12ec/0x1db0 fs/splice.c:1405 __x64_sys_splice+0xe5/0x100 fs/splice.c:1405 do_syscall_64+0xfe/0x140 arch/x86/entry/common.c:301 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x441ba9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 bb 10 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffd6d336548 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 00007ffd6d3365b0 RCX: 0000000000441ba9 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffffff R13: 0000000000000005 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 3b5328faabff785c ]--- RIP: 0010:sg_assign_page include/linux/scatterlist.h:97 [inline] RIP: 0010:sg_set_page include/linux/scatterlist.h:119 [inline] RIP: 0010:sk_msg_page_add include/linux/skmsg.h:246 [inline] RIP: 0010:tls_sw_do_sendpage net/tls/tls_sw.c:1170 [inline] RIP: 0010:tls_sw_sendpage+0x11b5/0x11e0 net/tls/tls_sw.c:1229 Code: c1 38 c1 0f 8c 12 fe ff ff 4c 89 f7 e8 14 bb 27 fb e9 05 fe ff ff e8 0a 92 ee fa 44 8b 7c 24 18 e9 b2 fe ff ff e8 fb 91 ee fa <0f> 0b e8 f4 91 ee fa 0f 0b e8 ed 91 ee fa 4c 89 f7 48 c7 c6 87 e5 RSP: 0018:ffff888094adf7c0 EFLAGS: 00010293 RAX: ffffffff86871ff5 RBX: 0000000000000001 RCX: ffff888095bfc300 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffff888094adf998 R08: ffffffff8687170c R09: fffff9400045851f R10: fffff9400045851f R11: 1ffffd400045851e R12: 0000000000000000 R13: 0000000000000080 R14: ffffea00022c28c0 R15: 1ffff110124d0d01 FS: 0000555556a2f880(0000) GS:ffff8880aeb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffc5c9d1f18 CR3: 00000000a8a2c000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This bug 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 bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches