CVE-2026-74322

Summary

In 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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxf0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 < dfb27e5dd9e4d34fbb74fa834c644dcef0be2be9affected
LinuxLinuxf0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 < 63e6151b9791b31877a88ff62806e7c407683955affected
LinuxLinuxf0b0b239b8f36cdc55cf0bc1bac75ec07fc9fef1 < 61370e6674b5253de5686813ceeceebc35a7d3e5affected
LinuxLinux6.15affected
LinuxLinux0 < 6.15unaffected
LinuxLinux6.18.40 <= 6.18.*unaffected
LinuxLinux7.1.5 <= 7.1.*unaffected
LinuxLinux7.2 <= *unaffected

Weaknesses

References