{
    "CVE_data_meta": {
        "ASSIGNER": "cve@mitre.org",
        "ID": "CVE-2020-12826",
        "STATE": "PUBLIC"
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
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                                "version": {
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                                            "version_value": "n/a"
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    "data_type": "CVE",
    "data_version": "4.0",
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "A signal access-control issue was discovered in the Linux kernel before 5.6.5, aka CID-7395ea4e65c2. Because exec_id in include/linux/sched.h is only 32 bits, an integer overflow can interfere with a do_notify_parent protection mechanism. A child process can send an arbitrary signal to a parent process in a different security domain. Exploitation limitations include the amount of elapsed time before an integer overflow occurs, and the lack of scenarios where signals to a parent process present a substantial operational threat."
            }
        ]
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        "problemtype_data": [
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                "description": [
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                        "lang": "eng",
                        "value": "n/a"
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        "reference_data": [
            {
                "url": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5",
                "refsource": "MISC",
                "name": "https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.6.5"
            },
            {
                "url": "https://www.openwall.com/lists/kernel-hardening/2020/03/25/1",
                "refsource": "MISC",
                "name": "https://www.openwall.com/lists/kernel-hardening/2020/03/25/1"
            },
            {
                "url": "https://lists.openwall.net/linux-kernel/2020/03/24/1803",
                "refsource": "MISC",
                "name": "https://lists.openwall.net/linux-kernel/2020/03/24/1803"
            },
            {
                "url": "https://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba9cef",
                "refsource": "MISC",
                "name": "https://github.com/torvalds/linux/commit/7395ea4e65c2a00d23185a3f63ad315756ba9cef"
            },
            {
                "refsource": "CONFIRM",
                "name": "https://bugzilla.redhat.com/show_bug.cgi?id=1822077",
                "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1822077"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4367-1",
                "url": "https://usn.ubuntu.com/4367-1/"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4369-1",
                "url": "https://usn.ubuntu.com/4369-1/"
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            {
                "refsource": "CONFIRM",
                "name": "https://security.netapp.com/advisory/ntap-20200608-0001/",
                "url": "https://security.netapp.com/advisory/ntap-20200608-0001/"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20200609 [SECURITY] [DLA 2241-1] linux security update",
                "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html"
            },
            {
                "refsource": "MLIST",
                "name": "[debian-lts-announce] 20200610 [SECURITY] [DLA 2241-2] linux security update",
                "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html"
            },
            {
                "refsource": "UBUNTU",
                "name": "USN-4391-1",
                "url": "https://usn.ubuntu.com/4391-1/"
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}