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{
    "id": 806016,
    "url": "http://patchwork.ozlabs.org/api/patches/806016/?format=api",
    "web_url": "http://patchwork.ozlabs.org/project/netdev/patch/20170825202714.64ivixeindjph3z6@mwanda/",
    "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,
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    },
    "msgid": "<20170825202714.64ivixeindjph3z6@mwanda>",
    "list_archive_url": null,
    "date": "2017-08-25T20:27:14",
    "name": "[net-next] bpf: fix oops on allocation failure",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "48a92fc1cf5015f607b77fbfa1a768d170130bb2",
    "submitter": {
        "id": 9327,
        "url": "http://patchwork.ozlabs.org/api/people/9327/?format=api",
        "name": "Dan Carpenter",
        "email": "dan.carpenter@oracle.com"
    },
    "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/20170825202714.64ivixeindjph3z6@mwanda/mbox/",
    "series": [],
    "comments": "http://patchwork.ozlabs.org/api/patches/806016/comments/",
    "check": "pending",
    "checks": "http://patchwork.ozlabs.org/api/patches/806016/checks/",
    "tags": {},
    "related": [],
    "headers": {
        "Return-Path": "<netdev-owner@vger.kernel.org>",
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        "Delivered-To": "patchwork-incoming@ozlabs.org",
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            "from mwanda (/41.202.241.62)\n\tby default (Oracle Beehive Gateway v4.0)\n\twith ESMTP ; Fri, 25 Aug 2017 13:27:29 -0700"
        ],
        "Date": "Fri, 25 Aug 2017 23:27:14 +0300",
        "From": "Dan Carpenter <dan.carpenter@oracle.com>",
        "To": "Alexei Starovoitov <ast@kernel.org>,\n\tJohn Fastabend <john.fastabend@gmail.com>",
        "Cc": "Daniel Borkmann <daniel@iogearbox.net>, netdev@vger.kernel.org,\n\tkernel-janitors@vger.kernel.org",
        "Subject": "[PATCH net-next] bpf: fix oops on allocation failure",
        "Message-ID": "<20170825202714.64ivixeindjph3z6@mwanda>",
        "MIME-Version": "1.0",
        "Content-Type": "text/plain; charset=us-ascii",
        "Content-Disposition": "inline",
        "X-Mailer": "git-send-email haha only kidding",
        "User-Agent": "NeoMutt/20170609 (1.8.3)",
        "X-Source-IP": "userv0022.oracle.com [156.151.31.74]",
        "Sender": "netdev-owner@vger.kernel.org",
        "Precedence": "bulk",
        "List-ID": "<netdev.vger.kernel.org>",
        "X-Mailing-List": "netdev@vger.kernel.org"
    },
    "content": "\"err\" is set to zero if bpf_map_area_alloc() fails so it means we return\nERR_PTR(0) which is NULL.  The caller, find_and_alloc_map(), is not\nexpecting NULL returns and will oops.\n\nFixes: 174a79ff9515 (\"bpf: sockmap with sk redirect support\")\nSigned-off-by: Dan Carpenter <dan.carpenter@oracle.com>",
    "diff": "diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c\nindex 78b2bb9370ac..a11b9f52ea4a 100644\n--- a/kernel/bpf/sockmap.c\n+++ b/kernel/bpf/sockmap.c\n@@ -497,6 +497,7 @@ static struct bpf_map *sock_map_alloc(union bpf_attr *attr)\n \tif (err)\n \t\tgoto free_stab;\n \n+\terr = -ENOMEM;\n \tstab->sock_map = bpf_map_area_alloc(stab->map.max_entries *\n \t\t\t\t\t    sizeof(struct sock *),\n \t\t\t\t\t    stab->map.numa_node);\n",
    "prefixes": [
        "net-next"
    ]
}