CVE-2024-43879: wifi: cfg80211: handle 2x996 RU allocation in cfg80211_calculate_bitrate_he()
In the Linux kernel, the following vulnerability has been resolved:
wifi: cfg80211: handle 2x996 RU allocation in cfg80211calculatebitratehe()
Currently NL80211RATEINFOHERUALLOC2x996 is not handled in cfg80211calculatebitratehe(), leading to below warning:
kernel: invalid HE MCS: bw:6, ru:6 kernel: WARNING: CPU: 0 PID: 2312 at net/wireless/util.c:1501 cfg80211calculatebitratehe+0x22b/0x270 [cfg80211]
Fix it by handling 2x996 RU allocation in the same way as 160 MHz bandwidth.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1
Event History
Frequently Asked Questions
What is the severity of CVE-2024-43879?
CVE-2024-43879 is classified as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2024-43879?
To fix CVE-2024-43879, upgrade to the recommended versions of the Linux package or later.
Which software versions are affected by CVE-2024-43879?
CVE-2024-43879 affects specific versions of the Linux kernel prior to 5.10.226-1 and 6.1.123-1.
Is CVE-2024-43879 exploitable?
CVE-2024-43879 does not have a known active exploit at this time, but it is advisable to apply the fix.
What impact does CVE-2024-43879 have on network performance?
CVE-2024-43879 may lead to warnings and could potentially degrade network performance in some configurations.