{"id":"CVE-2026-90370","state":"PUBLISHED","title":"wifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config\n\nThe response TLV loop advanced by tlv->len without a minimum, so a\ntheoretical firmware response containing a zero-length TLV could spin\nforever, hanging the CPU during device probe.\nThe u32 payload was also read without bounds checking.\nReject a short fixed field, stop on a TLV whose length underruns the\nheader or overruns the skb.","publishedAt":"2026-09-17T16:09:11.398Z","updatedAt":"2026-10-19T09:02:29.217Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"3106f62809d45c1e6aadfad1f4d7c3f74cd53a96","versionType":"git"},{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"39aa6b853b6d69dd1fee3507efdb3c277b7c53e6","versionType":"git"},{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"d0bb2189ade617e624f3c8f444ebb05f59bb2524","versionType":"git"},{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"93eaddfdd35aa6bfe570c087db4e97fb9d8a791a","versionType":"git"},{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"44af52467e72094351a362bf69effd52f1d9c186","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7996/mcu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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/mt7996/mcu.c"]}],"references":["https://git.kernel.org/stable/c/3106f62809d45c1e6aadfad1f4d7c3f74cd53a96","https://git.kernel.org/stable/c/39aa6b853b6d69dd1fee3507efdb3c277b7c53e6","https://git.kernel.org/stable/c/d0bb2189ade617e624f3c8f444ebb05f59bb2524","https://git.kernel.org/stable/c/93eaddfdd35aa6bfe570c087db4e97fb9d8a791a","https://git.kernel.org/stable/c/44af52467e72094351a362bf69effd52f1d9c186"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:34.582Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/90xxx/CVE-2026-90370.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-90370","state":"PUBLISHED","datePublished":"2026-09-17T16:09:11.398Z","dateUpdated":"2026-10-19T09:02:29.217Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-11T19:38:34.807Z"},"containers":{"cna":{"title":"wifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: bound TLV walk in mt7996_mcu_get_chip_config\n\nThe response TLV loop advanced by tlv->len without a minimum, so a\ntheoretical firmware response containing a zero-length TLV could spin\nforever, hanging the CPU during device probe.\nThe u32 payload was also read without bounds checking.\nReject a short fixed field, stop on a TLV whose length underruns the\nheader or overruns the skb."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"3106f62809d45c1e6aadfad1f4d7c3f74cd53a96","versionType":"git"},{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"39aa6b853b6d69dd1fee3507efdb3c277b7c53e6","versionType":"git"},{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"d0bb2189ade617e624f3c8f444ebb05f59bb2524","versionType":"git"},{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"93eaddfdd35aa6bfe570c087db4e97fb9d8a791a","versionType":"git"},{"version":"5d33053be609abfcfa9f5ca75d5554f2109aa40b","status":"affected","lessThan":"44af52467e72094351a362bf69effd52f1d9c186","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7996/mcu.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.3","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.3","versionType":"semver"},{"version":"6.6.157","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.110","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.52","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.6","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/mt7996/mcu.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/3106f62809d45c1e6aadfad1f4d7c3f74cd53a96"},{"url":"https://git.kernel.org/stable/c/39aa6b853b6d69dd1fee3507efdb3c277b7c53e6"},{"url":"https://git.kernel.org/stable/c/d0bb2189ade617e624f3c8f444ebb05f59bb2524"},{"url":"https://git.kernel.org/stable/c/93eaddfdd35aa6bfe570c087db4e97fb9d8a791a"},{"url":"https://git.kernel.org/stable/c/44af52467e72094351a362bf69effd52f1d9c186"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T09:02:29.217Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.18.52"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.2.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}