{"id":"CVE-2026-98159","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: validate CLC firmware records\n\nThe CLC region is supplied by firmware, but the loader trusts the\nregion count and each record length","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: validate CLC firmware records\n\nThe CLC region is supplied by firmware, but the loader trusts the\nregion count and each record length. A malformed im…","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","cwe":["CWE-787"],"vendor":"linux","product":"linux_kernel","affected":["linux_kernel >= 6.1, < 6.1.189","linux_kernel >= 6.6, < 6.6.158","linux_kernel >= 6.12, < 6.12.111","linux_kernel >= 6.18, < 6.18.53","linux_kernel >= 7.2, < 7.2.7"],"patched":["linux_kernel 7.2.7"],"published":"2026-09-25","updated":"2026-10-14","sourceUpdated":"2026-10-14T16:21:23.090","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98159","references":[{"url":"https://git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/46673662402884ca55a869e4ebe956e08e8b6b05","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/740272d46ffc8231709a5e774cf5e4a5785b8a02","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98159.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98159"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541323"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98159"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98159"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98159.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00114,"epssPercentile":0.01485,"scores":{"nvd":5.5,"vendor":7},"ingestedAt":"2026-09-25T11:06:38.803Z","slug":"CVE-2026-98159","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7921: validate CLC firmware records\n\nThe CLC region is supplied by firmware, but the loader trusts the\nregion count and each record length. A malformed image can make the\nregion table pointer precede the firmware buffer, make the record loop\nfail to advance, or index phy->clc past its end. Validate the table and\nrecord bounds before dereferencing or copying.\n\n## Affected\n\n- `linux_kernel >= 6.1, < 6.1.189`\n- `linux_kernel >= 6.6, < 6.6.158`\n- `linux_kernel >= 6.12, < 6.12.111`\n- `linux_kernel >= 6.18, < 6.18.53`\n- `linux_kernel >= 7.2, < 7.2.7`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `linux_kernel 7.2.7`\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-09-28 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98159.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":220312,"id":"CVE-2026-98159","ts":1791996093246,"field":"cvss","old":"7","new":"5.5"},{"seq":220311,"id":"CVE-2026-98159","ts":1791996093246,"field":"severity","old":"high","new":"medium"},{"seq":212539,"id":"CVE-2026-98159","ts":1790668209019,"field":"cvss","old":null,"new":"7"},{"seq":212538,"id":"CVE-2026-98159","ts":1790668209019,"field":"severity","old":"none","new":"high"}]}