{"id":"CVE-2026-99177","aliases":[],"title":"KVM: SEV: Fix page dirtying in sev_gmem_post_populate()","titleSource":"Linux","descriptionSource":"Linux","products":[{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"97cd21d57e9bd2da79845178d9250cfd19289cd4","status":"affected","lessThan":"184382f9852d433af21de96c334ecf43b8414ed8","versionType":"git"},{"version":"97cd21d57e9bd2da79845178d9250cfd19289cd4","status":"affected","lessThan":"97818b2fa7082e940ddd36dab12a68615300e798","versionType":"git"}],"defaultStatus":"unaffected","source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99177"},{"vendor":"Linux","name":"Linux","platforms":[],"versions":[{"version":"7.2","status":"affected"},{"version":"0","status":"unaffected","lessThan":"7.2","versionType":"semver"},{"version":"7.2.13","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"defaultStatus":"affected","source":"Linux","url":"https://www.cve.org/CVERecord?id=CVE-2026-99177"}],"remediation":[],"description":"In the Linux kernel, the following vulnerability has been resolved:\n\nKVM: SEV: Fix page dirtying in sev_gmem_post_populate()\n\nset_page_dirty() requires that the caller holds some kind of lock to\nensure that the page's mapping does not concurrently go away.\nThat is not the case for a random page we got from get_user_pages_fast(),\nso use set_page_dirty_lock().\n\n[sean: tag for stable]","severity":"unknown","score":null,"published":"2026-10-28T10:35:31.315Z","modified":"2026-10-28T10:35:31.315Z","withdrawn":false,"knownExploited":false,"affected":[],"references":["https://git.kernel.org/stable/c/184382f9852d433af21de96c334ecf43b8414ed8","https://git.kernel.org/stable/c/97818b2fa7082e940ddd36dab12a68615300e798"],"sources":[{"name":"CVE","id":"CVE-2026-99177","modified":"2026-10-28T10:35:31.315Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-99177"}],"assessments":[],"sourceAffected":[],"kev":{"status":"not-listed","checkedAt":"2026-10-28T21:25:31.856Z"},"coverage":[{"source":"NVD","status":"not-checked"},{"source":"GHSA","status":"not-checked"},{"source":"EUVD","status":"not-checked"},{"source":"EPSS","status":"not-checked"}],"evidence":[]}