{"id":"CVE-2019-19462","title":"relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.","summary":"relay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-476"],"vendor":"netapp","product":"active_iq_unified_manager","affected":["linux_kernel <= 5.4.1","active_iq_unified_manager >= 9.5","hci_management_node","solidfire","hci_compute_node","hci_storage_node","ubuntu_linux = 14.04","ubuntu_linux = 16.04","ubuntu_linux = 18.04","ubuntu_linux = 20.04","leap = 15.1","leap = 15.2","debian_linux = 8.0","debian_linux = 9.0","debian_linux = 10.0"],"published":"2019-11-30","updated":"2026-10-08","sourceUpdated":"2026-10-08T21:17:19.093","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2019-19462","references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html","label":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html","label":"cve@mitre.org"},{"url":"https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20210129-0004/","label":"cve@mitre.org"},{"url":"https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8","label":"cve@mitre.org"},{"url":"https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531","label":"cve@mitre.org"},{"url":"https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046","label":"cve@mitre.org"},{"url":"https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7b","label":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4414-1/","label":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4425-1/","label":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4439-1/","label":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/4440-1/","label":"cve@mitre.org"},{"url":"https://www.debian.org/security/2020/dsa-4698","label":"cve@mitre.org"},{"url":"https://www.debian.org/security/2020/dsa-4699","label":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lore.kernel.org/lkml/20191129013745.7168-1-dja%40axtens.net/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20210129-0004/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://syzkaller-ppc64.appspot.com/bug?id=1c09906c83a8ea811a9e318c2a4f8e243becc6f8","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://syzkaller-ppc64.appspot.com/bug?id=b05b4d005191cc375cdf848c3d4d980308d50531","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://syzkaller.appspot.com/bug?id=e4265490d26d6c01cd9bc79dc915ef0a1bf15046","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://syzkaller.appspot.com/bug?id=f4d1cb4330bd3ddf4a628332b4285407b2eedd7b","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4414-1/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4425-1/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4439-1/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/4440-1/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2020/dsa-4698","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2020/dsa-4699","label":"af854a3a-2127-422b-91ae-364da2661108"}],"tags":["nvd"],"epss":0.0046,"epssPercentile":0.3788,"ingestedAt":"2026-10-08T22:11:53.708Z","slug":"CVE-2019-19462","body":"## Overview\n\nrelay_open in kernel/relay.c in the Linux kernel through 5.4.1 allows local users to cause a denial of service (such as relay blockage) by triggering a NULL alloc_percpu result.\n\n## Affected\n\n- `linux_kernel <= 5.4.1`\n- `active_iq_unified_manager >= 9.5`\n- `hci_management_node`\n- `solidfire`\n- `hci_compute_node`\n- `hci_storage_node`\n- `ubuntu_linux = 14.04`\n- `ubuntu_linux = 16.04`\n- `ubuntu_linux = 18.04`\n- `ubuntu_linux = 20.04`\n- `leap = 15.1`\n- `leap = 15.2`\n- `debian_linux = 8.0`\n- `debian_linux = 9.0`\n- `debian_linux = 10.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}