{"id":"AZL-109044","summary":"CVE-2026-98754 affecting package kernel 6.6.157.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ntty: vcc: hold port lock when clearing tty pointer in vcc_cleanup\n\nvcc_cleanup() sets port-\u003etty to NULL without holding port-\u003elock, racing\nwith vcc_event() LDC callbacks that read port-\u003etty under port-\u003elock and\nthen use tty-\u003eport. This can cause a use-after-free when the callback\ndereferences tty-\u003eport after cleanup has already destroyed and freed it.","modified":"2026-10-19T14:16:50.083501952Z","published":"2026-10-18T16:17:29Z","upstream":["CVE-2026-98754"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98754"}],"affected":[{"package":{"name":"kernel","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/kernel"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"6.6.157.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-109044.json"}}],"schema_version":"1.9.0"}