{"id":"CVE-2019-15807","title":"In the Linux kernel before 5.1.13, there is a memory leak in drivers/scsi/libsas/sas_expander.c when SAS expander discovery fails","summary":"In the Linux kernel before 5.1.13, there is a memory leak in drivers/scsi/libsas/sas_expander.c when SAS expander discovery fails. This will cause a BUG and denial of service.","severity":"medium","cvss":4.7,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-401","CWE-400"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel < 5.1.13","debian_linux = 8.0","enterprise_linux = 7.0","enterprise_linux = 8.0"],"patched":["linux_kernel 5.1.13"],"published":"2019-08-29","updated":"2026-10-08","sourceUpdated":"2026-10-08T21:17:15.417","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2019-15807","references":[{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.13","label":"cve@mitre.org"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0541791453fbe7f42867e310e0c9eb6295364d","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html","label":"cve@mitre.org"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html","label":"cve@mitre.org"},{"url":"https://security.netapp.com/advisory/ntap-20191004-0001/","label":"cve@mitre.org"},{"url":"https://support.f5.com/csp/article/K52136304?utm_source=f5support&amp%3Butm_medium=RSS","label":"cve@mitre.org"},{"url":"https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.1.13","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=3b0541791453fbe7f42867e310e0c9eb6295364d","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00014.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00015.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.debian.org/debian-lts-announce/2019/09/msg00025.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.netapp.com/advisory/ntap-20191004-0001/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.f5.com/csp/article/K52136304?utm_source=f5support&amp%3Butm_medium=RSS","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-15807.json"},{"url":"https://access.redhat.com/security/cve/CVE-2019-15807"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1747216"},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-15807"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-15807"},{"url":"https://access.redhat.com/errata/RHSA-2020:4060"},{"url":"https://access.redhat.com/errata/RHSA-2020:4062"}],"tags":["nvd","csaf","vex","red-hat","cve.org"],"epss":0.00405,"epssPercentile":0.34598,"ingestedAt":"2026-10-08T22:11:53.700Z","ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-08T21:00:05.574858Z"},"slug":"CVE-2019-15807","body":"## Overview\n\nIn the Linux kernel before 5.1.13, there is a memory leak in drivers/scsi/libsas/sas_expander.c when SAS expander discovery fails. This will cause a BUG and denial of service.\n\n## Affected\n\n- `linux_kernel < 5.1.13`\n- `debian_linux = 8.0`\n- `enterprise_linux = 7.0`\n- `enterprise_linux = 8.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 5.1.13`\n\n## Vendor advisories\n\n- **RHSA-2020:4060** · Red Hat · fixed in: Red Hat Enterprise Linux Client (v. 7), Red Hat Enterprise Linux Client Optional (v. 7), Red Hat Enterprise Linux ComputeNode (v. 7), Red Hat Enterprise Linux ComputeNode Optional (v. 7), Red Hat Enterprise Linux Server (v. 7), Red Hat Enterprise Linux Server Optional (v. 7), … · released 2020-09-29 · [advisory](https://access.redhat.com/errata/RHSA-2020:4060)\n- **RHSA-2020:4062** · Red Hat · fixed in: Red Hat Enterprise Linux for Real Time for NFV (v. 7), Red Hat Enterprise Linux for Real Time (v. 7) · released 2020-09-29 · [advisory](https://access.redhat.com/errata/RHSA-2020:4062)\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise MRG 2 · no fix planned: Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6, Red Hat Enterprise MRG 2, Red Hat Enterprise Linux 7, … · updated 2026-10-08 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2019/cve-2019-15807.json)","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":25.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}