{"id":"AZL-34803","summary":"CVE-2023-31084 affecting package hyperv-daemons for versions less than 6.6.35.1-1","details":"An issue was discovered in drivers/media/dvb-core/dvb_frontend.c in the Linux kernel 6.2. There is a blocking operation when a task is in !TASK_RUNNING. In dvb_frontend_get_event, wait_event_interruptible is called; the condition is dvb_frontend_test_event(fepriv,events). In dvb_frontend_test_event, down(&fepriv-\u003esem) is called. However, wait_event_interruptible would put the process to sleep, and down(&fepriv-\u003esem) may block the process.","modified":"2026-04-01T05:11:42.679945Z","published":"2023-04-24T06:15:07Z","upstream":["CVE-2023-31084"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-31084"}],"affected":[{"package":{"name":"hyperv-daemons","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/hyperv-daemons"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.6.35.1-1"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-34803.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:N/I:N/A:H"}]}