{"id":"AZL-6581","summary":"CVE-2021-38166 affecting package kernel for versions less than 5.10.78.1-1","details":"In kernel/bpf/hashtab.c in the Linux kernel through 5.13.8, there is an integer overflow and out-of-bounds write when many elements are placed in a single bucket. NOTE: exploitation might be impractical without the CAP_SYS_ADMIN capability.","modified":"2026-04-01T05:20:39.392408Z","published":"2021-08-07T18:15:07Z","upstream":["CVE-2021-38166"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38166"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:2","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.10.78.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-6581.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}