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GET /api/patches/989785/?format=api
HTTP 200 OK
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Vary: Accept

{
    "id": 989785,
    "url": "http://patchwork.ozlabs.org/api/patches/989785/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20181026213333.51495-4-alice.michael@intel.com/",
    "project": {
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        "name": "Intel Wired Ethernet development",
        "link_name": "intel-wired-lan",
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    "msgid": "<20181026213333.51495-4-alice.michael@intel.com>",
    "list_archive_url": null,
    "date": "2018-10-26T21:33:31",
    "name": "[next,S98,4/6] virtchnl: Fix off by one error",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": false,
    "hash": "997f8040384e8f27e33e648c38e2ead2ee419766",
    "submitter": {
        "id": 71123,
        "url": "http://patchwork.ozlabs.org/api/people/71123/?format=api",
        "name": "Michael, Alice",
        "email": "alice.michael@intel.com"
    },
    "delegate": {
        "id": 68,
        "url": "http://patchwork.ozlabs.org/api/users/68/?format=api",
        "username": "jtkirshe",
        "first_name": "Jeff",
        "last_name": "Kirsher",
        "email": "jeffrey.t.kirsher@intel.com"
    },
    "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20181026213333.51495-4-alice.michael@intel.com/mbox/",
    "series": [
        {
            "id": 72818,
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            "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=72818",
            "date": "2018-10-26T21:33:30",
            "name": "[next,S98,1/6] i40e: don't restart nway if autoneg not supported",
            "version": 1,
            "mbox": "http://patchwork.ozlabs.org/series/72818/mbox/"
        }
    ],
    "comments": "http://patchwork.ozlabs.org/api/patches/989785/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/989785/checks/",
    "tags": {},
    "related": [],
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            "from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136])\n\tby ash.osuosl.org (Postfix) with ESMTP id B8BEB1BF30B\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 26 Oct 2018 21:34:10 +0000 (UTC)",
            "from localhost (localhost [127.0.0.1])\n\tby silver.osuosl.org (Postfix) with ESMTP id B5E5125D30\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 26 Oct 2018 21:34:10 +0000 (UTC)",
            "from silver.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id 4lJeUTuXWtvY for <intel-wired-lan@lists.osuosl.org>;\n\tFri, 26 Oct 2018 21:34:06 +0000 (UTC)",
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            "from fmsmga007.fm.intel.com ([10.253.24.52])\n\tby fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t26 Oct 2018 14:34:06 -0700",
            "from alicemic-2.jf.intel.com ([10.166.16.121])\n\tby fmsmga007.fm.intel.com with ESMTP; 26 Oct 2018 14:34:06 -0700"
        ],
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        "X-IronPort-AV": "E=Sophos;i=\"5.54,429,1534834800\"; d=\"scan'208\";a=\"81228156\"",
        "From": "Alice Michael <alice.michael@intel.com>",
        "To": "alice.michael@intel.com,\n\tintel-wired-lan@lists.osuosl.org",
        "Date": "Fri, 26 Oct 2018 14:33:31 -0700",
        "Message-Id": "<20181026213333.51495-4-alice.michael@intel.com>",
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        "In-Reply-To": "<20181026213333.51495-1-alice.michael@intel.com>",
        "References": "<20181026213333.51495-1-alice.michael@intel.com>",
        "Subject": "[Intel-wired-lan] [next PATCH S98 4/6] virtchnl: Fix off by one\n\terror",
        "X-BeenThere": "intel-wired-lan@osuosl.org",
        "X-Mailman-Version": "2.1.29",
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        "Errors-To": "intel-wired-lan-bounces@osuosl.org",
        "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>"
    },
    "content": "When calculating the valid length for a VIRTCHNL_OP_ENABLE_CHANNELS\nmessage, we accidentally allowed messages with one extra\nvirtchnl_channel_info structure on the end. This happened due\nto an off by one error, because we forgot that valid_len already\naccounted for one virtchnl_channel_info structure, so we need to\nsubtract one from the num_tc value.\n\nSigned-off-by: Alice Michael <alice.michael@intel.com>\n---\n include/linux/avf/virtchnl.h | 4 ++--\n 1 file changed, 2 insertions(+), 2 deletions(-)",
    "diff": "diff --git a/include/linux/avf/virtchnl.h b/include/linux/avf/virtchnl.h\nindex 3130dec..7605b59 100644\n--- a/include/linux/avf/virtchnl.h\n+++ b/include/linux/avf/virtchnl.h\n@@ -819,8 +819,8 @@ virtchnl_vc_validate_vf_msg(struct virtchnl_version_info *ver, u32 v_opcode,\n \t\tif (msglen >= valid_len) {\n \t\t\tstruct virtchnl_tc_info *vti =\n \t\t\t\t(struct virtchnl_tc_info *)msg;\n-\t\t\tvalid_len += vti->num_tc *\n-\t\t\t\tsizeof(struct virtchnl_channel_info);\n+\t\t\tvalid_len += (vti->num_tc - 1) *\n+\t\t\t\t     sizeof(struct virtchnl_channel_info);\n \t\t\tif (vti->num_tc == 0)\n \t\t\t\terr_msg_format = true;\n \t\t}\n",
    "prefixes": [
        "next",
        "S98",
        "4/6"
    ]
}