CVE-2024-47714

MEDIUM5.5

wifi: mt76: mt7996: use hweight16 to get correct tx antenna

Published Oct 21, 2024

Modified 8 months ago

No fix available

Details

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]

References

WEBhttps://git.kernel.org/stable/c/33954930870c18ec549e4bca0eeff43e252cb740 WEBhttps://git.kernel.org/stable/c/50d87e3b70980abc090676b6b4703fcbd96221f9 WEBhttps://git.kernel.org/stable/c/8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3 WEBhttps://git.kernel.org/stable/c/f98c3de92bb05dac4a4969df8a4595ed380b4604 ADVISORYhttps://www.cve.org/CVERecord?id=CVE-2024-47714

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

5.5/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Ecosystems

Timeline

PublishedOct 21, 2024

ModifiedMay 4, 2025