wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he()

Summary

In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he() Currently NL80211_RATE_INFO_HE_RU_ALLOC_2x996 is not handled in cfg80211_calculate_bitrate_he(), leading to below warning: kernel: invalid HE MCS: bw:6, ru:6 kernel: WARNING: CPU: 0 PID: 2312 at net/wireless/util.c:1501 cfg80211_calculate_bitrate_he+0x22b/0x270 [cfg80211] Fix it by handling 2x996 RU allocation in the same way as 160 MHz bandwidth.

Timeline

1. Aug 21, 2024, 12:06 AM UTCCVE published
2. Sep 10, 2024, 4:05 PM UTCCISA SSVC assessment

   Exploitation: none · Automatable: no · Technical impact: partial

3. Oct 15, 2026, 12:48 AM UTCRecord last updated

Affected versions

• Linux Linux

  From c4cbaf7973a794839af080f13748335976cf3f3f · fixed in 45d20a1c54be4f3173862c7b950d4468447814c9; From c4cbaf7973a794839af080f13748335976cf3f3f · fixed in b289ebb0516526cb4abae081b7ec29fd4fa1209d; From c4cbaf7973a794839af080f13748335976cf3f3f · fixed in 2e201b3d162c6c49417c438ffb30b58c9f85769f; From c4cbaf7973a794839af080f13748335976cf3f3f · fixed in 576c64622649f3ec07e97bac8fec8b8a2ef4d086; From c4cbaf7973a794839af080f13748335976cf3f3f · fixed in 16ad67e73309db0c20cc2a651992bd01c05e6b27; From c4cbaf7973a794839af080f13748335976cf3f3f · fixed in 67b5f1054197e4f5553047759c15c1d67d4c8142; From c4cbaf7973a794839af080f13748335976cf3f3f · fixed in 19eaf4f2f5a981f55a265242ada2bf92b0c742dd; From c4cbaf7973a794839af080f13748335976cf3f3f · fixed in bcbd771cd5d68c0c52567556097d75f9fc4e7cd6

• Linux Linux

  4.19

• KernelLinux

  From 4.19.0 · fixed in 4.19.320; From 4.20.0 · fixed in 5.4.282; From 5.5.0 · fixed in 5.10.224; From 5.11.0 · fixed in 5.15.165; From 5.16.0 · fixed in 6.1.103; From 6.2.0 · fixed in 6.6.44; From 6.7.0 · fixed in 6.10.3

References 8