From mboxrd@z Thu Jan 1 00:00:00 1970 From: syzbot Date: Fri, 31 May 2019 21:18:06 +0000 Subject: memory leak in sctp_send_reset_streams Message-Id: <000000000000f7a443058a358cb4@google.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="windows-1254" Content-Transfer-Encoding: base64 To: davem@davemloft.net, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, syzkaller-bugs@googlegroups.com, vyasevich@gmail.com SGVsbG8sCgpzeXpib3QgZm91bmQgdGhlIGZvbGxvd2luZyBjcmFzaCBvbjoKCkhFQUQgY29tbWl0 OiAgICAwMzZlMzQzMSBNZXJnZSBnaXQ6Ly9naXQua2VybmVsLm9yZy9wdWIvc2NtL2xpbnV4L2tl cm5lbC9nLi4KZ2l0IHRyZWU6ICAgICAgIHVwc3RyZWFtCmNvbnNvbGUgb3V0cHV0OiBodHRwczov L3N5emthbGxlci5hcHBzcG90LmNvbS94L2xvZy50eHQ/eBUzY2ZmMTJhMDAwMDAKa2VybmVsIGNv bmZpZzogIGh0dHBzOi8vc3l6a2FsbGVyLmFwcHNwb3QuY29tL3gvLmNvbmZpZz94jzBmNjNhNjJi YjViMTNjCmRhc2hib2FyZCBsaW5rOiBodHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS9idWc/ ZXh0aWRqZDljM2JkMGEyMThhMmFiNDFkCmNvbXBpbGVyOiAgICAgICBnY2MgKEdDQykgOS4wLjAg MjAxODEyMzEgKGV4cGVyaW1lbnRhbCkKc3l6IHJlcHJvOiAgICAgIGh0dHBzOi8vc3l6a2FsbGVy LmFwcHNwb3QuY29tL3gvcmVwcm8uc3l6P3gSNTYxYzg2YTAwMDAwCkMgcmVwcm9kdWNlcjogICBo dHRwczovL3N5emthbGxlci5hcHBzcG90LmNvbS94L3JlcHJvLmM/eBViNzZmZDhhMDAwMDAKCklN UE9SVEFOVDogaWYgeW91IGZpeCB0aGUgYnVnLCBwbGVhc2UgYWRkIHRoZSBmb2xsb3dpbmcgdGFn IHRvIHRoZSBjb21taXQ6ClJlcG9ydGVkLWJ5OiBzeXpib3QrNmFkOWMzYmQwYTIxOGEyYWI0MWRA c3l6a2FsbGVyLmFwcHNwb3RtYWlsLmNvbQoKZXhlY3V0aW5nIHByb2dyYW0KZXhlY3V0aW5nIHBy b2dyYW0KZXhlY3V0aW5nIHByb2dyYW0KZXhlY3V0aW5nIHByb2dyYW0KZXhlY3V0aW5nIHByb2dy YW0KQlVHOiBtZW1vcnkgbGVhawp1bnJlZmVyZW5jZWQgb2JqZWN0IDB4ZmZmZjg4ODEyMzg5NDgy MCAoc2l6ZSAzMik6CiAgIGNvbW0gInN5ei1leGVjdXRvcjA0NSIsIHBpZCA3MjY3LCBqaWZmaWVz IDQyOTQ5NDM1NTkgKGFnZSAxMy42NjBzKQogICBoZXggZHVtcCAoZmlyc3QgMzIgYnl0ZXMpOgog ICAgIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwICAuLi4u Li4uLi4uLi4uLi4uCiAgICAgMDAgMDAgMDAgMDAgMDAgMDAgMDAgMDAgMDAgMDAgMDAgMDAgMDAg MDAgMDAgMDAgIC4uLi4uLi4uLi4uLi4uLi4KICAgYmFja3RyYWNlOgogICAgIFs8MDAwMDAwMDBj N2U3MWM2OT5dIGttZW1sZWFrX2FsbG9jX3JlY3Vyc2l2ZSAgCmluY2x1ZGUvbGludXgva21lbWxl YWsuaDo1NSBbaW5saW5lXQogICAgIFs8MDAwMDAwMDBjN2U3MWM2OT5dIHNsYWJfcG9zdF9hbGxv Y19ob29rIG1tL3NsYWIuaDo0MzkgW2lubGluZV0KICAgICBbPDAwMDAwMDAwYzdlNzFjNjk+XSBz bGFiX2FsbG9jIG1tL3NsYWIuYzozMzI2IFtpbmxpbmVdCiAgICAgWzwwMDAwMDAwMGM3ZTcxYzY5 Pl0gX19kb19rbWFsbG9jIG1tL3NsYWIuYzozNjU4IFtpbmxpbmVdCiAgICAgWzwwMDAwMDAwMGM3 ZTcxYzY5Pl0gX19rbWFsbG9jKzB4MTYxLzB4MmMwIG1tL3NsYWIuYzozNjY5CiAgICAgWzwwMDAw MDAwMDMyNTBlZDhlPl0ga21hbGxvY19hcnJheSBpbmNsdWRlL2xpbnV4L3NsYWIuaDo2NzAgW2lu bGluZV0KICAgICBbPDAwMDAwMDAwMzI1MGVkOGU+XSBrY2FsbG9jIGluY2x1ZGUvbGludXgvc2xh Yi5oOjY4MSBbaW5saW5lXQogICAgIFs8MDAwMDAwMDAzMjUwZWQ4ZT5dIHNjdHBfc2VuZF9yZXNl dF9zdHJlYW1zKzB4MWFiLzB4NWEwICAKbmV0L3NjdHAvc3RyZWFtLmM6MzAyCiAgICAgWzwwMDAw MDAwMGNkODk5YzZlPl0gc2N0cF9zZXRzb2Nrb3B0X3Jlc2V0X3N0cmVhbXMgIApuZXQvc2N0cC9z b2NrZXQuYzo0MzE0IFtpbmxpbmVdCiAgICAgWzwwMDAwMDAwMGNkODk5YzZlPl0gc2N0cF9zZXRz b2Nrb3B0IG5ldC9zY3RwL3NvY2tldC5jOjQ3NjUgW2lubGluZV0KICAgICBbPDAwMDAwMDAwY2Q4 OTljNmU+XSBzY3RwX3NldHNvY2tvcHQrMHhjMjMvMHgyYmYwIG5ldC9zY3RwL3NvY2tldC5jOjQ2 MDgKICAgICBbPDAwMDAwMDAwZmYzYTIxYTI+XSBzb2NrX2NvbW1vbl9zZXRzb2Nrb3B0KzB4Mzgv MHg1MCAgCm5ldC9jb3JlL3NvY2suYzozMTMwCiAgICAgWzwwMDAwMDAwMDllYjg3YWU3Pl0gX19z eXNfc2V0c29ja29wdCsweDk4LzB4MTIwIG5ldC9zb2NrZXQuYzoyMDc4CiAgICAgWzwwMDAwMDAw MGUwZWRlNmNhPl0gX19kb19zeXNfc2V0c29ja29wdCBuZXQvc29ja2V0LmM6MjA4OSBbaW5saW5l XQogICAgIFs8MDAwMDAwMDBlMGVkZTZjYT5dIF9fc2Vfc3lzX3NldHNvY2tvcHQgbmV0L3NvY2tl dC5jOjIwODYgW2lubGluZV0KICAgICBbPDAwMDAwMDAwZTBlZGU2Y2E+XSBfX3g2NF9zeXNfc2V0 c29ja29wdCsweDI2LzB4MzAgbmV0L3NvY2tldC5jOjIwODYKICAgICBbPDAwMDAwMDAwYzYxMTU1 ZjU+XSBkb19zeXNjYWxsXzY0KzB4NzYvMHgxYTAgIAphcmNoL3g4Ni9lbnRyeS9jb21tb24uYzoz MDEKICAgICBbPDAwMDAwMDAwZTU0MDk1OGM+XSBlbnRyeV9TWVNDQUxMXzY0X2FmdGVyX2h3ZnJh bWUrMHg0NC8weGE5CgpCVUc6IG1lbW9yeSBsZWFrCnVucmVmZXJlbmNlZCBvYmplY3QgMHhmZmZm ODg4MTIzODk0OTgwIChzaXplIDMyKToKICAgY29tbSAic3l6LWV4ZWN1dG9yMDQ1IiwgcGlkIDcy NjgsIGppZmZpZXMgNDI5NDk0NDE0NSAoYWdlIDcuODAwcykKICAgaGV4IGR1bXAgKGZpcnN0IDMy IGJ5dGVzKToKICAgICAwMCAwMCAwMCAwMCAwMCAwMCAwMCAwMCAwMCAwMCAwMCAwMCAwMCAwMCAw MCAwMCAgLi4uLi4uLi4uLi4uLi4uLgogICAgIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAwIDAw IDAwIDAwIDAwIDAwIDAwIDAwICAuLi4uLi4uLi4uLi4uLi4uCiAgIGJhY2t0cmFjZToKICAgICBb PDAwMDAwMDAwYzdlNzFjNjk+XSBrbWVtbGVha19hbGxvY19yZWN1cnNpdmUgIAppbmNsdWRlL2xp bnV4L2ttZW1sZWFrLmg6NTUgW2lubGluZV0KICAgICBbPDAwMDAwMDAwYzdlNzFjNjk+XSBzbGFi X3Bvc3RfYWxsb2NfaG9vayBtbS9zbGFiLmg6NDM5IFtpbmxpbmVdCiAgICAgWzwwMDAwMDAwMGM3 ZTcxYzY5Pl0gc2xhYl9hbGxvYyBtbS9zbGFiLmM6MzMyNiBbaW5saW5lXQogICAgIFs8MDAwMDAw MDBjN2U3MWM2OT5dIF9fZG9fa21hbGxvYyBtbS9zbGFiLmM6MzY1OCBbaW5saW5lXQogICAgIFs8 MDAwMDAwMDBjN2U3MWM2OT5dIF9fa21hbGxvYysweDE2MS8weDJjMCBtbS9zbGFiLmM6MzY2OQog ICAgIFs8MDAwMDAwMDAzMjUwZWQ4ZT5dIGttYWxsb2NfYXJyYXkgaW5jbHVkZS9saW51eC9zbGFi Lmg6NjcwIFtpbmxpbmVdCiAgICAgWzwwMDAwMDAwMDMyNTBlZDhlPl0ga2NhbGxvYyBpbmNsdWRl L2xpbnV4L3NsYWIuaDo2ODEgW2lubGluZV0KICAgICBbPDAwMDAwMDAwMzI1MGVkOGU+XSBzY3Rw X3NlbmRfcmVzZXRfc3RyZWFtcysweDFhYi8weDVhMCAgCm5ldC9zY3RwL3N0cmVhbS5jOjMwMgog ICAgIFs8MDAwMDAwMDBjZDg5OWM2ZT5dIHNjdHBfc2V0c29ja29wdF9yZXNldF9zdHJlYW1zICAK bmV0L3NjdHAvc29ja2V0LmM6NDMxNCBbaW5saW5lXQogICAgIFs8MDAwMDAwMDBjZDg5OWM2ZT5d IHNjdHBfc2V0c29ja29wdCBuZXQvc2N0cC9zb2NrZXQuYzo0NzY1IFtpbmxpbmVdCiAgICAgWzww MDAwMDAwMGNkODk5YzZlPl0gc2N0cF9zZXRzb2Nrb3B0KzB4YzIzLzB4MmJmMCBuZXQvc2N0cC9z b2NrZXQuYzo0NjA4CiAgICAgWzwwMDAwMDAwMGZmM2EyMWEyPl0gc29ja19jb21tb25fc2V0c29j a29wdCsweDM4LzB4NTAgIApuZXQvY29yZS9zb2NrLmM6MzEzMAogICAgIFs8MDAwMDAwMDA5ZWI4 N2FlNz5dIF9fc3lzX3NldHNvY2tvcHQrMHg5OC8weDEyMCBuZXQvc29ja2V0LmM6MjA3OAogICAg IFs8MDAwMDAwMDBlMGVkZTZjYT5dIF9fZG9fc3lzX3NldHNvY2tvcHQgbmV0L3NvY2tldC5jOjIw ODkgW2lubGluZV0KICAgICBbPDAwMDAwMDAwZTBlZGU2Y2E+XSBfX3NlX3N5c19zZXRzb2Nrb3B0 IG5ldC9zb2NrZXQuYzoyMDg2IFtpbmxpbmVdCiAgICAgWzwwMDAwMDAwMGUwZWRlNmNhPl0gX194 NjRfc3lzX3NldHNvY2tvcHQrMHgyNi8weDMwIG5ldC9zb2NrZXQuYzoyMDg2CiAgICAgWzwwMDAw MDAwMGM2MTE1NWY1Pl0gZG9fc3lzY2FsbF82NCsweDc2LzB4MWEwICAKYXJjaC94ODYvZW50cnkv Y29tbW9uLmM6MzAxCiAgICAgWzwwMDAwMDAwMGU1NDA5NThjPl0gZW50cnlfU1lTQ0FMTF82NF9h ZnRlcl9od2ZyYW1lKzB4NDQvMHhhOQoKCgotLS0KVGhpcyBidWcgaXMgZ2VuZXJhdGVkIGJ5IGEg Ym90LiBJdCBtYXkgY29udGFpbiBlcnJvcnMuClNlZSBodHRwczovL2dvby5nbC90cHNtRUogZm9y IG1vcmUgaW5mb3JtYXRpb24gYWJvdXQgc3l6Ym90LgpzeXpib3QgZW5naW5lZXJzIGNhbiBiZSBy ZWFjaGVkIGF0IHN5emthbGxlckBnb29nbGVncm91cHMuY29tLgoKc3l6Ym90IHdpbGwga2VlcCB0 cmFjayBvZiB0aGlzIGJ1ZyByZXBvcnQuIFNlZToKaHR0cHM6Ly9nb28uZ2wvdHBzbUVKI3N0YXR1 cyBmb3IgaG93IHRvIGNvbW11bmljYXRlIHdpdGggc3l6Ym90LgpzeXpib3QgY2FuIHRlc3QgcGF0 Y2hlcyBmb3IgdGhpcyBidWcsIGZvciBkZXRhaWxzIHNlZToKaHR0cHM6Ly9nb28uZ2wvdHBzbUVK I3Rlc3RpbmctcGF0Y2hlcw== 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=-3.8 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,LONGWORDS,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 C6A0EC04AB6 for ; Fri, 31 May 2019 21:18:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9B4ED26F38 for ; Fri, 31 May 2019 21:18:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727699AbfEaVSH (ORCPT ); Fri, 31 May 2019 17:18:07 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:42330 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726749AbfEaVSH (ORCPT ); Fri, 31 May 2019 17:18:07 -0400 Received: by mail-io1-f71.google.com with SMTP id v187so8622392ioe.9 for ; Fri, 31 May 2019 14:18:06 -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=9vJ5p7g65WszXpcgdHNrhcEVIXylvGJSGHu7KxUMRl0=; b=GjZCYpL0MtNOcebeRLhgiLryElqqAjy9bX8yBUJ02py6Gvald72ogF4kqugb9skj3U GmcZzzY8qGumK3mGION2Ggp0pLbd3l8TwU7eFLHBqiNwb0qFs1Z7EAZ5sT0ocmYHPxsE fLfyfg6xYQd+RjoN6Rjv6LxP6pHHpYhtVfQPtyztApf1QYpLYvv7ssq92Pt82sV4thJp rp8szy8C5X64QjuTF8mpJiPTsXebsYbeSLVyf0ONujKI2ejjgEsB77odQz48zudROwCz 1yt1gBvMjVQNzzIy0oTUELleQn7Rbvj00fFc3eUgYP33qkkAdu/GCsfVhsSNqF/hTDAS 85kg== X-Gm-Message-State: APjAAAWYT23VQsOIbj5XuiKEUwQNp5H7PkOE/o9F6PrZ3KXxGP/dxDGQ F4f/NIKLNUc927y4kSEqK/JK6yDg0dMOBj8edzVAKYHSzueM X-Google-Smtp-Source: APXvYqyQthWYZkYEzHAw27Fklkf9ijpz/D7EU/qN25ZeTvfoP8xszP9EdDcihQRxiZOU0u7xwOU77U09S102kJHodTHCUDVE0ATP MIME-Version: 1.0 X-Received: by 2002:a05:660c:6c1:: with SMTP id z1mr9492253itk.126.1559337486489; Fri, 31 May 2019 14:18:06 -0700 (PDT) Date: Fri, 31 May 2019 14:18:06 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000f7a443058a358cb4@google.com> Subject: memory leak in sctp_send_reset_streams From: syzbot To: davem@davemloft.net, linux-kernel@vger.kernel.org, linux-sctp@vger.kernel.org, marcelo.leitner@gmail.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, syzkaller-bugs@googlegroups.com, vyasevich@gmail.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: 036e3431 Merge git://git.kernel.org/pub/scm/linux/kernel/g.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=153cff12a00000 kernel config: https://syzkaller.appspot.com/x/.config?x=8f0f63a62bb5b13c dashboard link: https://syzkaller.appspot.com/bug?extid=6ad9c3bd0a218a2ab41d compiler: gcc (GCC) 9.0.0 20181231 (experimental) syz repro: https://syzkaller.appspot.com/x/repro.syz?x=12561c86a00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=15b76fd8a00000 IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+6ad9c3bd0a218a2ab41d@syzkaller.appspotmail.com executing program executing program executing program executing program executing program BUG: memory leak unreferenced object 0xffff888123894820 (size 32): comm "syz-executor045", pid 7267, jiffies 4294943559 (age 13.660s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000c7e71c69>] kmemleak_alloc_recursive include/linux/kmemleak.h:55 [inline] [<00000000c7e71c69>] slab_post_alloc_hook mm/slab.h:439 [inline] [<00000000c7e71c69>] slab_alloc mm/slab.c:3326 [inline] [<00000000c7e71c69>] __do_kmalloc mm/slab.c:3658 [inline] [<00000000c7e71c69>] __kmalloc+0x161/0x2c0 mm/slab.c:3669 [<000000003250ed8e>] kmalloc_array include/linux/slab.h:670 [inline] [<000000003250ed8e>] kcalloc include/linux/slab.h:681 [inline] [<000000003250ed8e>] sctp_send_reset_streams+0x1ab/0x5a0 net/sctp/stream.c:302 [<00000000cd899c6e>] sctp_setsockopt_reset_streams net/sctp/socket.c:4314 [inline] [<00000000cd899c6e>] sctp_setsockopt net/sctp/socket.c:4765 [inline] [<00000000cd899c6e>] sctp_setsockopt+0xc23/0x2bf0 net/sctp/socket.c:4608 [<00000000ff3a21a2>] sock_common_setsockopt+0x38/0x50 net/core/sock.c:3130 [<000000009eb87ae7>] __sys_setsockopt+0x98/0x120 net/socket.c:2078 [<00000000e0ede6ca>] __do_sys_setsockopt net/socket.c:2089 [inline] [<00000000e0ede6ca>] __se_sys_setsockopt net/socket.c:2086 [inline] [<00000000e0ede6ca>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2086 [<00000000c61155f5>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301 [<00000000e540958c>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 BUG: memory leak unreferenced object 0xffff888123894980 (size 32): comm "syz-executor045", pid 7268, jiffies 4294944145 (age 7.800s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<00000000c7e71c69>] kmemleak_alloc_recursive include/linux/kmemleak.h:55 [inline] [<00000000c7e71c69>] slab_post_alloc_hook mm/slab.h:439 [inline] [<00000000c7e71c69>] slab_alloc mm/slab.c:3326 [inline] [<00000000c7e71c69>] __do_kmalloc mm/slab.c:3658 [inline] [<00000000c7e71c69>] __kmalloc+0x161/0x2c0 mm/slab.c:3669 [<000000003250ed8e>] kmalloc_array include/linux/slab.h:670 [inline] [<000000003250ed8e>] kcalloc include/linux/slab.h:681 [inline] [<000000003250ed8e>] sctp_send_reset_streams+0x1ab/0x5a0 net/sctp/stream.c:302 [<00000000cd899c6e>] sctp_setsockopt_reset_streams net/sctp/socket.c:4314 [inline] [<00000000cd899c6e>] sctp_setsockopt net/sctp/socket.c:4765 [inline] [<00000000cd899c6e>] sctp_setsockopt+0xc23/0x2bf0 net/sctp/socket.c:4608 [<00000000ff3a21a2>] sock_common_setsockopt+0x38/0x50 net/core/sock.c:3130 [<000000009eb87ae7>] __sys_setsockopt+0x98/0x120 net/socket.c:2078 [<00000000e0ede6ca>] __do_sys_setsockopt net/socket.c:2089 [inline] [<00000000e0ede6ca>] __se_sys_setsockopt net/socket.c:2086 [inline] [<00000000e0ede6ca>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2086 [<00000000c61155f5>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:301 [<00000000e540958c>] entry_SYSCALL_64_after_hwframe+0x44/0xa9 --- 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. syzbot can test patches for this bug, for details see: https://goo.gl/tpsmEJ#testing-patches