{"id":"AZL-64979","summary":"CVE-2025-38312 affecting package kernel for versions less than 6.6.96.1-1","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nfbdev: core: fbcvt: avoid division by 0 in fb_cvt_hperiod()\n\nIn fb_find_mode_cvt(), iff mode-\u003erefresh somehow happens to be 0x80000000,\ncvt.f_refresh will become 0 when multiplying it by 2 due to overflow. It's\nthen passed to fb_cvt_hperiod(), where it's used as a divider -- division\nby 0 will result in kernel oops. Add a sanity check for cvt.f_refresh to\navoid such overflow...\n\nFound by Linux Verification Center (linuxtesting.org) with the Svace static\nanalysis tool.","modified":"2026-04-01T05:20:27.256293Z","published":"2025-07-10T08:15:30Z","upstream":["CVE-2025-38312"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-38312"}],"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-64979.json"}}],"schema_version":"1.7.5"}