wifi: mt76: mt7996: Fix possible NULL pointer dereference in mt7996_mac_write_txwi_80211()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-74322
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-15 06:22:32 UTC
Updated2026-08-15 06:22:32 UTC
DescriptionIn the Linux kernel, the following vulnerability has been resolved: wifi: mt76: mt7996: Fix possible NULL pointer dereference in mt7996_mac_write_txwi_80211() For injected frames (e.g. via radiotap), mac80211 can pass info->control.vif = NULL, as explicitly noted in struct ieee80211_tx_info. Check vif pointer before executing ieee80211_vif_is_mld() in mt7996_mac_write_txwi_80211 routine in order to avoid a possible NULL pointer dereference.

Risk And Classification

EPSS: 0.001660000 probability, percentile 0.062570000 (date 2026-08-15)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9 git Not specified
CNA Linux Linux affected f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 63e6151b9791b31877a88ff62806e7c407683955 git Not specified
CNA Linux Linux affected f0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 61370e6674b5253de5686813ceeceebc35a7d3e5 git Not specified
CNA Linux Linux affected 6.15 Not specified
CNA Linux Linux unaffected 6.15 semver Not specified
CNA Linux Linux unaffected 6.18.40 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.5 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/61370e6674b5253de5686813ceeceebc35a7d3e5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/63e6151b9791b31877a88ff62806e7c407683955 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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