{
    "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2015-7550",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "product": {
                        "product_data": [
                            {
                                "product_name": "n/a",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_value": "n/a"
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                    "vendor_name": "n/a"
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    "data_format": "MITRE",
    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "The keyctl_read_key function in security/keys/keyctl.c in the Linux kernel before 4.3.4 does not properly use a semaphore, which allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via a crafted application that leverages a race condition between keyctl_revoke and keyctl_read calls."
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
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                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
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    },
    "references": {
        "reference_data": [
            {
                "name": "79903",
                "refsource": "BID",
                "url": "http://www.securityfocus.com/bid/79903"
            },
            {
                "name": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4",
                "refsource": "CONFIRM",
                "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.3.4"
            },
            {
                "name": "USN-2911-1",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2911-1"
            },
            {
                "name": "USN-2890-3",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2890-3"
            },
            {
                "name": "SUSE-SU-2016:1102",
                "refsource": "SUSE",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00045.html"
            },
            {
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1291197",
                "refsource": "CONFIRM",
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1291197"
            },
            {
                "name": "https://github.com/torvalds/linux/commit/b4a1b4f5047e4f54e194681125c74c0aa64d637d",
                "refsource": "CONFIRM",
                "url": "https://github.com/torvalds/linux/commit/b4a1b4f5047e4f54e194681125c74c0aa64d637d"
            },
            {
                "name": "USN-2911-2",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2911-2"
            },
            {
                "name": "SUSE-SU-2016:2074",
                "refsource": "SUSE",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2016-08/msg00038.html"
            },
            {
                "name": "USN-2890-2",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2890-2"
            },
            {
                "name": "https://security-tracker.debian.org/tracker/CVE-2015-7550",
                "refsource": "CONFIRM",
                "url": "https://security-tracker.debian.org/tracker/CVE-2015-7550"
            },
            {
                "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b4a1b4f5047e4f54e194681125c74c0aa64d637d",
                "refsource": "CONFIRM",
                "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b4a1b4f5047e4f54e194681125c74c0aa64d637d"
            },
            {
                "name": "USN-2890-1",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2890-1"
            },
            {
                "name": "DSA-3434",
                "refsource": "DEBIAN",
                "url": "http://www.debian.org/security/2016/dsa-3434"
            },
            {
                "name": "USN-2888-1",
                "refsource": "UBUNTU",
                "url": "http://www.ubuntu.com/usn/USN-2888-1"
            },
            {
                "name": "SUSE-SU-2016:0911",
                "refsource": "SUSE",
                "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00094.html"
            }
        ]
    }
}