Patch Detail

HTTP 200 OK
Allow: GET, PUT, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "id": 816483,
    "url": "http://patchwork.ozlabs.org/api/patches/816483/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/1505940337-79069-21-git-send-email-keescook@chromium.org/",
    "project": {
        "id": 7,
        "url": "http://patchwork.ozlabs.org/api/projects/7/?format=api",
        "name": "Linux network development",
        "link_name": "netdev",
        "list_id": "netdev.vger.kernel.org",
        "list_email": "netdev@vger.kernel.org",
        "web_url": null,
        "scm_url": null,
        "webscm_url": null,
        "list_archive_url": "",
        "list_archive_url_format": "",
        "commit_url_format": ""
    },
    "msgid": "<1505940337-79069-21-git-send-email-keescook@chromium.org>",
    "list_archive_url": null,
    "date": "2017-09-20T20:45:26",
    "name": "[v3,20/31] caif: Define usercopy region in caif proto slab cache",
    "commit_ref": null,
    "pull_url": null,
    "state": "not-applicable",
    "archived": true,
    "hash": "394021791c06427cfcbbe2d6311acbc5d43e64df",
    "submitter": {
        "id": 10641,
        "url": "http://patchwork.ozlabs.org/api/people/10641/?format=api",
        "name": "Kees Cook",
        "email": "keescook@chromium.org"
    },
    "delegate": {
        "id": 34,
        "url": "http://patchwork.ozlabs.org/api/users/34/?format=api",
        "username": "davem",
        "first_name": "David",
        "last_name": "Miller",
        "email": "davem@davemloft.net"
    },
    "mbox": "http://patchwork.ozlabs.org/project/netdev/patch/1505940337-79069-21-git-send-email-keescook@chromium.org/mbox/",
    "series": [
        {
            "id": 4231,
            "url": "http://patchwork.ozlabs.org/api/series/4231/?format=api",
            "web_url": "http://patchwork.ozlabs.org/project/netdev/list/?series=4231",
            "date": "2017-09-20T20:45:22",
            "name": "Hardened usercopy whitelisting",
            "version": 3,
            "mbox": "http://patchwork.ozlabs.org/series/4231/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/816483/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/816483/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<netdev-owner@vger.kernel.org>",
        "X-Original-To": "patchwork-incoming@ozlabs.org",
        "Delivered-To": "patchwork-incoming@ozlabs.org",
        "Authentication-Results": [
            "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=netdev-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)",
            "ozlabs.org; dkim=pass (1024-bit key;\n\tunprotected) header.d=chromium.org header.i=@chromium.org\n\theader.b=\"Gwe6hX+2\"; dkim-atps=neutral"
        ],
        "Received": [
            "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 3xyBdD64jTz9s4s\n\tfor <patchwork-incoming@ozlabs.org>;\n\tThu, 21 Sep 2017 06:47:28 +1000 (AEST)",
            "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1752041AbdITUq5 (ORCPT <rfc822;patchwork-incoming@ozlabs.org>);\n\tWed, 20 Sep 2017 16:46:57 -0400",
            "from mail-pg0-f43.google.com ([74.125.83.43]:53599 \"EHLO\n\tmail-pg0-f43.google.com\" rhost-flags-OK-OK-OK-OK) by vger.kernel.org\n\twith ESMTP id S1751930AbdITUqO (ORCPT\n\t<rfc822;netdev@vger.kernel.org>); Wed, 20 Sep 2017 16:46:14 -0400",
            "by mail-pg0-f43.google.com with SMTP id j70so2326935pgc.10\n\tfor <netdev@vger.kernel.org>; Wed, 20 Sep 2017 13:46:14 -0700 (PDT)",
            "from www.outflux.net\n\t(173-164-112-133-Oregon.hfc.comcastbusiness.net. [173.164.112.133])\n\tby smtp.gmail.com with ESMTPSA id\n\tj14sm8379424pgs.15.2017.09.20.13.46.04\n\t(version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128);\n\tWed, 20 Sep 2017 13:46:08 -0700 (PDT)"
        ],
        "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=chromium.org; s=google;\n\th=from:to:cc:subject:date:message-id:in-reply-to:references;\n\tbh=3rcTq9qKe3syswrU9FV9vxWUfCoZoHovIBXXZeEnCUU=;\n\tb=Gwe6hX+2V6YzhjyyG3Ul7QBvUBTlls0iOGWH94n1WTSGdugtZkyg2/5qAZnZhYLXMi\n\tDEQrRs0Rj6kOq3ZOsG/BO4arAnJojrbBSkQrsYeqMjP5GqDDeCtgWG9hhDCcHOkS1vO5\n\tOOg2GQRzw5UgnhSTj1aBHYfEHZJvwDJ3/12zM=",
        "X-Google-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n\td=1e100.net; s=20161025;\n\th=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to\n\t:references;\n\tbh=3rcTq9qKe3syswrU9FV9vxWUfCoZoHovIBXXZeEnCUU=;\n\tb=HEJrZ80zmxjXZ4AF7rqoYXIk7DFsuuVKYB2kkfadHbjeI1IC4i9TssnSWa2PtAjESC\n\tkAmHN5RVbagi2BSQ+Ys30mBJB0aMYUlnKReWvptXA4ArulFBr61kpioTjuiOnyzQekPn\n\tcnfvIkYnmLsmh8J012KVLBLJnN6AF58GWKNr3IUl5NDXfrlIqjTXfu6RsgaaGlpiXz6w\n\tSU9Er83TuTkgSRCAdl5dU3oLqHmVItNl8llUIDR0JztJCb5CZAjcyl6ZJ++F5lGSiMYq\n\tlC+OHwwwklRwBw+f8nqTtXX1eSMx5cseWTecp+NnV34fdMGyRC/TFg2x59ZHBV9HXhyk\n\ta3ww==",
        "X-Gm-Message-State": "AHPjjUhgN6xCwrOQN/yA9HMWPcqUcZDgqzZbh5h6FNZCWk5qgJzfP+ci\n\tvEWixA4j/yOOZoP1sEu8EOA7WQ==",
        "X-Google-Smtp-Source": "AOwi7QBeF4XE3RC/jm1ungl235aGF2O8qubaS7Hhsvw6JXmDKu0o1gUJa6HnDsW7w11pArmSTLNEHQ==",
        "X-Received": "by 10.99.3.4 with SMTP id 4mr3448567pgd.203.1505940374030;\n\tWed, 20 Sep 2017 13:46:14 -0700 (PDT)",
        "From": "Kees Cook <keescook@chromium.org>",
        "To": "linux-kernel@vger.kernel.org",
        "Cc": "Kees Cook <keescook@chromium.org>, David Windsor <dave@nullcore.net>,\n\t\"David S. Miller\" <davem@davemloft.net>, netdev@vger.kernel.org,\n\tlinux-fsdevel@vger.kernel.org, linux-mm@kvack.org,\n\tkernel-hardening@lists.openwall.com",
        "Subject": "[PATCH v3 20/31] caif: Define usercopy region in caif proto slab\n\tcache",
        "Date": "Wed, 20 Sep 2017 13:45:26 -0700",
        "Message-Id": "<1505940337-79069-21-git-send-email-keescook@chromium.org>",
        "X-Mailer": "git-send-email 2.7.4",
        "In-Reply-To": "<1505940337-79069-1-git-send-email-keescook@chromium.org>",
        "References": "<1505940337-79069-1-git-send-email-keescook@chromium.org>",
        "Sender": "netdev-owner@vger.kernel.org",
        "Precedence": "bulk",
        "List-ID": "<netdev.vger.kernel.org>",
        "X-Mailing-List": "netdev@vger.kernel.org"
    },
    "content": "From: David Windsor <dave@nullcore.net>\n\nThe CAIF channel connection request parameters need to be copied to/from\nuserspace. In support of usercopy hardening, this patch defines a region\nin the struct proto slab cache in which userspace copy operations are\nallowed.\n\nexample usage trace:\n\n    net/caif/caif_socket.c:\n        setsockopt(...):\n            ...\n            copy_from_user(&cf_sk->conn_req.param.data, ..., ol)\n\nThis region is known as the slab cache's usercopy region. Slab caches can\nnow check that each copy operation involving cache-managed memory falls\nentirely within the slab's usercopy region.\n\nThis patch is modified from Brad Spengler/PaX Team's PAX_USERCOPY\nwhitelisting code in the last public patch of grsecurity/PaX based on my\nunderstanding of the code. Changes or omissions from the original code are\nmine and don't reflect the original grsecurity/PaX code.\n\nSigned-off-by: David Windsor <dave@nullcore.net>\n[kees: split from network patch, provide usage trace]\nCc: \"David S. Miller\" <davem@davemloft.net>\nCc: netdev@vger.kernel.org\nSigned-off-by: Kees Cook <keescook@chromium.org>\n---\n net/caif/caif_socket.c | 2 ++\n 1 file changed, 2 insertions(+)",
    "diff": "diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c\nindex 632d5a416d97..c76d513b9a7a 100644\n--- a/net/caif/caif_socket.c\n+++ b/net/caif/caif_socket.c\n@@ -1032,6 +1032,8 @@ static int caif_create(struct net *net, struct socket *sock, int protocol,\n \tstatic struct proto prot = {.name = \"PF_CAIF\",\n \t\t.owner = THIS_MODULE,\n \t\t.obj_size = sizeof(struct caifsock),\n+\t\t.useroffset = offsetof(struct caifsock, conn_req.param),\n+\t\t.usersize = sizeof_field(struct caifsock, conn_req.param)\n \t};\n \n \tif (!capable(CAP_SYS_ADMIN) && !capable(CAP_NET_ADMIN))\n",
    "prefixes": [
        "v3",
        "20/31"
    ]
}