{"id":"CVE-2026-98159","state":"PUBLISHED","title":"wifi: mt76: mt7921: validate CLC firmware records","description":"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 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.","publishedAt":"2026-09-25T10:36:28.206Z","updatedAt":"2026-10-19T09:14:53.011Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"46673662402884ca55a869e4ebe956e08e8b6b05","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"740272d46ffc8231709a5e774cf5e4a5785b8a02","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"602a950134ee2940136f60797e4457c3983b06ce","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"3896be051e928c891922d91de94c99519d215dff","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"3c505e2af16a9320f4355218394a955fbbc65322","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"9417c5818a0146980c2608fda94c908e604eb033","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7921/mcu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7921/mcu.c"]}],"references":["https://git.kernel.org/stable/c/46673662402884ca55a869e4ebe956e08e8b6b05","https://git.kernel.org/stable/c/740272d46ffc8231709a5e774cf5e4a5785b8a02","https://git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce","https://git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff","https://git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322","https://git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98159.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98159","state":"PUBLISHED","datePublished":"2026-09-25T10:36:28.206Z","dateUpdated":"2026-10-19T09:14:53.011Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:25:14.321Z"},"containers":{"cna":{"title":"wifi: mt76: mt7921: validate CLC firmware records","descriptions":[{"lang":"en","value":"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 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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"46673662402884ca55a869e4ebe956e08e8b6b05","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"740272d46ffc8231709a5e774cf5e4a5785b8a02","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"602a950134ee2940136f60797e4457c3983b06ce","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"3896be051e928c891922d91de94c99519d215dff","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"3c505e2af16a9320f4355218394a955fbbc65322","versionType":"git"},{"version":"23bdc5d8cadfc941e7782d0cb8afb2d9ae73b125","status":"affected","lessThan":"9417c5818a0146980c2608fda94c908e604eb033","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7921/mcu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.1","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.1","versionType":"semver"},{"version":"6.1.189","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.158","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7921/mcu.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/46673662402884ca55a869e4ebe956e08e8b6b05"},{"url":"https://git.kernel.org/stable/c/740272d46ffc8231709a5e774cf5e4a5785b8a02"},{"url":"https://git.kernel.org/stable/c/602a950134ee2940136f60797e4457c3983b06ce"},{"url":"https://git.kernel.org/stable/c/3896be051e928c891922d91de94c99519d215dff"},{"url":"https://git.kernel.org/stable/c/3c505e2af16a9320f4355218394a955fbbc65322"},{"url":"https://git.kernel.org/stable/c/9417c5818a0146980c2608fda94c908e604eb033"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:14:53.011Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.1.189"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.6.158"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}