Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected eae94cf82d7456b57fa9fd55c1edb8a726dcc19c before 2ac15e5a8f42fed5d90ed9e1197600913678c50f; affected eae94cf82d7456b57fa9fd55c1edb8a726dcc19c before cde8a7eb5c6762264ff0f4433358e0a0d250c875; affected eae94cf82d7456b57fa9fd55c1edb8a726dcc19c before fc621e7a043de346c33bd7ae7e2e0c651d6152ef; affected eae94cf82d7456b57fa9fd55c1edb8a726dcc19c before 2ccd5badadab2d586e91546bf5af3deda07fef1f; affected eae94cf82d7456b57fa9fd55c1edb8a726dcc19c before 7245012f0f496162dd95d888ed2ceb5a35170f1a |
| Linux / Linux | affected 5.11; unaffected 0 before 5.11; unaffected 5.15.171 through 5.15.*; unaffected 6.1.116 through 6.1.*; unaffected 6.6.60 through 6.6.*; unaffected 6.11.7 through 6.11.*; unaffected 6.12 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2ac15e5a8f42fed5d90ed9e1197600913678c50f
- https://git.kernel.org/stable/c/cde8a7eb5c6762264ff0f4433358e0a0d250c875
- https://git.kernel.org/stable/c/fc621e7a043de346c33bd7ae7e2e0c651d6152ef
- https://git.kernel.org/stable/c/2ccd5badadab2d586e91546bf5af3deda07fef1f
- https://git.kernel.org/stable/c/7245012f0f496162dd95d888ed2ceb5a35170f1a
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.