{"id":"AZL-64701","summary":"CVE-2025-38191 affecting package kernel for versions less than 6.6.96.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nksmbd: fix null pointer dereference in destroy_previous_session\n\nIf client set -\u003ePreviousSessionId on kerberos session setup stage,\nNULL pointer dereference error will happen. Since sess-\u003euser is not\nset yet, It can pass the user argument as NULL to destroy_previous_session.\nsess-\u003euser will be set in ksmbd_krb5_authenticate(). So this patch move\ncalling destroy_previous_session() after ksmbd_krb5_authenticate().","modified":"2026-04-01T05:20:23.285273Z","published":"2025-07-04T14:15:26Z","upstream":["CVE-2025-38191"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38191"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.96.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-64701.json"}}],"schema_version":"1.7.5"}