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CVE-2024-47714

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

MEDIUM
5.5
CVSS Score
Published: October 21, 2024 at 11:53 AM UTC
Updated: August 5, 2026 at 12:04 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

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]

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
6.11 ≤ v < 6.11.26.2 ≤ v < 6.10.136.2 ≤ v < 6.11.26.2 ≤ v < 6.126.2 ≤ v < 6.6.546.7 ≤ v < 6.10.136.298686cd21624c75a043e96812beadddf4f6f48e5
Vendor states this is fixed in 33954930870c18ec549e4bca0eeff43e252cb740 (fixed)
Vendor states this is fixed in 50d87e3b70980abc090676b6b4703fcbd96221f9 (fixed)
Vendor states this is fixed in 8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3 (fixed)
Vendor states this is fixed in f98c3de92bb05dac4a4969df8a4595ed380b4604 (fixed)
Vendor states this is fixed in 6.10.13 (unaffected)
Vendor states this is fixed in 6.11.2 (unaffected)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.2 (unaffected)
Vendor states this is fixed in 6.6.54 (unaffected)

References (4)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/33954930870c18ec549e4bca0eeff43e252cb740
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/50d87e3b70980abc090676b6b4703fcbd96221f9
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/f98c3de92bb05dac4a4969df8a4595ed380b4604

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-787

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