CVE-2024-47714: wifi: mt76: mt7996: use hweight16 to get correct tx antenna
In the Linux kernel, the following vulnerability has been resolved:
wifi: mt76: mt7996: use hweight16 to get correct tx antenna
The chainmask is u16 so using hweight8 cannot get correct txant. Without this patch, the txant of band 2 would be -1 and lead to the following issue: BUG: KASAN: stack-out-of-bounds in mt7996mcuaddsta+0x12e0/0x16e0 [mt7996e]
Other sources
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— Launchpad
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed 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
Event History
Frequently Asked Questions
What is the severity of CVE-2024-47714?
CVE-2024-47714 has not been assigned a specific severity rating, but it affects the Linux kernel's handling of transmit antennas.
How do I fix CVE-2024-47714?
To fix CVE-2024-47714, you should update the Linux kernel to a version that includes the patch correcting the antenna handling.
Which versions of the Linux kernel are affected by CVE-2024-47714?
CVE-2024-47714 affects Linux kernel versions between 6.2 and 6.6.54, between 6.7 and 6.10.13, and between 6.11 and 6.11.2.
What issue does CVE-2024-47714 cause in the Linux kernel?
CVE-2024-47714 can lead to incorrect antenna selection by returning -1 for the transmit antenna of band 2.
Is there any impact on system performance due to CVE-2024-47714?
Yes, CVE-2024-47714 can negatively impact Wi-Fi performance by causing incorrect antenna configurations.