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GHSA-g63v-c4x5-2g6v

GitHub Security Advisory

⚠ Unreviewed MODERATE Has CVE

Advisory Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: iwlwifi: mvm: fix 6 GHz scan construction

If more than 255 colocated APs exist for the set of all
APs found during 2.4/5 GHz scanning, then the 6 GHz scan
construction will loop forever since the loop variable
has type u8, which can never reach the number found when
that's bigger than 255, and is stored in a u32 variable.
Also move it into the loops to have a smaller scope.

Using a u32 there is fine, we limit the number of APs in
the scan list and each has a limit on the number of RNR
entries due to the frame size. With a limit of 1000 scan
results, a frame size upper bound of 4096 (really it's
more like ~2300) and a TBTT entry size of at least 11,
we get an upper bound for the number of ~372k, well in
the bounds of a u32.

Related CVEs

Key Information

GHSA ID
GHSA-g63v-c4x5-2g6v
Published
November 19, 2024 6:31 PM
Last Modified
November 22, 2024 9:32 PM
CVSS Score
5.0 /10
Primary Ecosystem
Unknown
Primary Package
Unknown
GitHub Reviewed
✗ No

Dataset

Last updated: June 13, 2025 6:24 AM

Data from GitHub Advisory Database. This information is provided for research and educational purposes.