{"id":"CVE-2026-74322","state":"PUBLISHED","title":"wifi: mt76: mt7996: Fix possible NULL pointer dereference in mt7996_mac_write_txwi_80211()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: Fix possible NULL pointer dereference in mt7996_mac_write_txwi_80211()\n\nFor injected frames (e.g. via radiotap), mac80211 can pass\ninfo->control.vif = NULL, as explicitly noted in struct ieee80211_tx_info.\nCheck vif pointer before executing ieee80211_vif_is_mld() in\nmt7996_mac_write_txwi_80211 routine in order to avoid a possible NULL\npointer dereference.","publishedAt":"2026-08-15T05:58:18.167Z","updatedAt":"2026-08-17T05:17:12.538Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1","status":"affected","lessThan":"dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9","versionType":"git"},{"version":"f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1","status":"affected","lessThan":"63e6151b9791b31877a88ff62806e7c407683955","versionType":"git"},{"version":"f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1","status":"affected","lessThan":"61370e6674b5253de5686813ceeceebc35a7d3e5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7996/mac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","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/mac.c"]}],"references":["https://git.kernel.org/stable/c/dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9","https://git.kernel.org/stable/c/63e6151b9791b31877a88ff62806e7c407683955","https://git.kernel.org/stable/c/61370e6674b5253de5686813ceeceebc35a7d3e5"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:58.252Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/74xxx/CVE-2026-74322.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-74322","state":"PUBLISHED","datePublished":"2026-08-15T05:58:18.167Z","dateUpdated":"2026-08-17T05:17:12.538Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-15T05:44:03.884Z"},"containers":{"cna":{"title":"wifi: mt76: mt7996: Fix possible NULL pointer dereference in mt7996_mac_write_txwi_80211()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7996: Fix possible NULL pointer dereference in mt7996_mac_write_txwi_80211()\n\nFor injected frames (e.g. via radiotap), mac80211 can pass\ninfo->control.vif = NULL, as explicitly noted in struct ieee80211_tx_info.\nCheck vif pointer before executing ieee80211_vif_is_mld() in\nmt7996_mac_write_txwi_80211 routine in order to avoid a possible NULL\npointer dereference."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1","status":"affected","lessThan":"dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9","versionType":"git"},{"version":"f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1","status":"affected","lessThan":"63e6151b9791b31877a88ff62806e7c407683955","versionType":"git"},{"version":"f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1","status":"affected","lessThan":"61370e6674b5253de5686813ceeceebc35a7d3e5","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/wireless/mediatek/mt76/mt7996/mac.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.15","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.15","versionType":"semver"},{"version":"6.18.40","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.5","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2","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/mac.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9"},{"url":"https://git.kernel.org/stable/c/63e6151b9791b31877a88ff62806e7c407683955"},{"url":"https://git.kernel.org/stable/c/61370e6674b5253de5686813ceeceebc35a7d3e5"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-08-17T05:17:12.538Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"6.18.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.1.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.15","versionEndExcluding":"7.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}