CVE-2024-47714: wifi: mt76: mt7996: use hweight16 to get correct tx antenna
First published: Mon Oct 21 2024(Updated: )
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 tx_ant. Without this patch, the tx_ant of band 2 would be -1 and lead to the following issue: BUG: KASAN: stack-out-of-bounds in mt7996_mcu_add_sta+0x12e0/0x16e0 [mt7996e]
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux kernel | >=6.2<6.6.54 | |
| Linux kernel | >=6.7<6.10.13 | |
| Linux kernel | >=6.11<6.11.2 | |
| Linux Kernel | >=6.2<6.6.54 | |
| Linux Kernel | >=6.7<6.10.13 | |
| Linux Kernel | >=6.11<6.11.2 | |
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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Reference Links
- https://git.kernel.org/stable/c/50d87e3b70980abc090676b6b4703fcbd96221f9
- https://git.kernel.org/stable/c/8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3
- https://git.kernel.org/stable/c/33954930870c18ec549e4bca0eeff43e252cb740
- https://git.kernel.org/stable/c/f98c3de92bb05dac4a4969df8a4595ed380b4604
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-47714
- https://nvd.nist.gov/vuln/detail/CVE-2024-47714
- https://launchpad.net/bugs/cve/CVE-2024-47714
- https://security-tracker.debian.org/tracker/CVE-2024-47714
- https://ubuntu.com/security/CVE-2024-47714
- https://git.kernel.org/linus/f98c3de92bb05dac4a4969df8a4595ed380b4604
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.
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