{"id":"AZL-31564","summary":"CVE-2023-40791 affecting package kernel for versions less than 5.15.135.1-2","details":"extract_user_to_sg in lib/scatterlist.c in the Linux kernel before 6.4.12 fails to unpin pages in a certain situation, as demonstrated by a WARNING for try_grab_page.","modified":"2026-04-21T04:26:22.066734Z","published":"2023-10-16T03:15:09Z","upstream":["CVE-2023-40791"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-40791"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.15.135.1-2"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-31564.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:H"}]}