{"id":"CVE-2026-89873","summary":"media: v4l2-ctrls: validate HEVC EXT SPS RPS counts","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-ctrls: validate HEVC EXT SPS RPS counts\n\nThe HEVC SPS control carries the short-term and long-term RPS counts\nthat decoder drivers use to walk the matching EXT SPS dynamic arrays.\nReject SPS values that exceed the HEVC limits of 64 short-term sets and\n32 long-term references so drivers cannot later index beyond those\ncontrols.\n\nAlso reject EXT SPS ST RPS entries whose negative or positive picture\ncounts exceed the 16-entry arrays, or whose combined delta-POC count\nexceeds the HEVC DPB maximum.","modified":"2026-09-18T03:48:33.495079554Z","published":"2026-09-16T10:31:41.341Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89873.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/30f85a7c59113a8844b276efc010085a34f912e9"},{"type":"WEB","url":"https://git.kernel.org/stable/c/796b5c6d4f1615d59d5d8fe5a38fae6bfdfe878e"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89873.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89873"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"c9a59dc2acc72789d5c778af080d1e65af84862c"},{"fixed":"30f85a7c59113a8844b276efc010085a34f912e9"},{"fixed":"796b5c6d4f1615d59d5d8fe5a38fae6bfdfe878e"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89873.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"7.0.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89873.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}]}