{"id":"CVE-2026-80966","title":"ALSA: portman2x4: Check card index validity at probe","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: portman2x4: Check card index validity at probe\n\nAlthough portman2x4 driver has a check of the given devptr->id value,\nit doesn't check for a negative id, which is…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cvssSource":"vendor","cwe":["CWE-125"],"vendor":"Linux","product":"Linux","affected":["Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 45ea0707298798678a60ff861b695aea049a5469","Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 5d7ac5e9ee5ba76b567ace13b46075caf79dcca0","Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 0048994854f3e9c57b7a754de43ef8da5818d140","Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 64898e9bd8b7b229efa8642b85b56b326a6ec3dc","Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 0ce391090809d610647f424b9b1dc24aa2c546fd","Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < d7ef7890e3e35b4ba09e76fc6b72047a1599a5e8","Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < e1ce8ad1009b1736b3044b3324350dcfdd516f42","Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 3690ef20469d5959378260e2752f2314a2572913","Linux 2.6.21"],"published":"2026-09-11","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:45:50.251Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80966","references":[{"url":"https://git.kernel.org/stable/c/45ea0707298798678a60ff861b695aea049a5469"},{"url":"https://git.kernel.org/stable/c/5d7ac5e9ee5ba76b567ace13b46075caf79dcca0"},{"url":"https://git.kernel.org/stable/c/0048994854f3e9c57b7a754de43ef8da5818d140"},{"url":"https://git.kernel.org/stable/c/64898e9bd8b7b229efa8642b85b56b326a6ec3dc"},{"url":"https://git.kernel.org/stable/c/0ce391090809d610647f424b9b1dc24aa2c546fd"},{"url":"https://git.kernel.org/stable/c/d7ef7890e3e35b4ba09e76fc6b72047a1599a5e8"},{"url":"https://git.kernel.org/stable/c/e1ce8ad1009b1736b3044b3324350dcfdd516f42"},{"url":"https://git.kernel.org/stable/c/3690ef20469d5959378260e2752f2314a2572913"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80966.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-80966"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2532285"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-80966"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80966"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-80966.mbox"}],"tags":["cve.org","csaf","vex","red-hat"],"epss":0.00216,"epssPercentile":0.11983,"ingestedAt":"2026-09-14T15:23:07.455Z","slug":"CVE-2026-80966","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nALSA: portman2x4: Check card index validity at probe\n\nAlthough portman2x4 driver has a check of the given devptr->id value,\nit doesn't check for a negative id, which is often given as \"none\" or\nsuch value when bound via sysfs.  This may lead to OOB access for\nindex[] and other parameters.\n\nAdd a sanity check for the card index and warn/correct it if it's a\nvalue out of the range.\n\n## Affected\n\n- `Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 45ea0707298798678a60ff861b695aea049a5469`\n- `Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 5d7ac5e9ee5ba76b567ace13b46075caf79dcca0`\n- `Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 0048994854f3e9c57b7a754de43ef8da5818d140`\n- `Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 64898e9bd8b7b229efa8642b85b56b326a6ec3dc`\n- `Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 0ce391090809d610647f424b9b1dc24aa2c546fd`\n- `Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < d7ef7890e3e35b4ba09e76fc6b72047a1599a5e8`\n- `Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < e1ce8ad1009b1736b3044b3324350dcfdd516f42`\n- `Linux >= 757e119bf52b014b3181eed97b01f87a245b8ff9 < 3690ef20469d5959378260e2752f2314a2572913`\n- `Linux 2.6.21`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-14 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80966.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":204213,"id":"CVE-2026-80966","ts":1789490240206,"field":"cvss","old":null,"new":"5.5"},{"seq":204212,"id":"CVE-2026-80966","ts":1789490240206,"field":"severity","old":"none","new":"medium"},{"seq":147446,"id":"CVE-2026-80966","ts":1789270210940,"field":"cvss","old":null,"new":"5.8"},{"seq":147445,"id":"CVE-2026-80966","ts":1789270210940,"field":"severity","old":"none","new":"medium"},{"seq":109202,"id":"CVE-2026-80966","ts":1789183730708,"field":"cvss","old":null,"new":"5.8"},{"seq":109201,"id":"CVE-2026-80966","ts":1789183730708,"field":"severity","old":"none","new":"medium"}]}