CVE-2023-53589
High
Description
In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: mvm: don't trust firmware n_channels If the firmware sends us a corrupted MCC response with n_channels much larger than the command response can be, we might copy far too much (uninitialized) memory and even crash if the n_channels is large enough to make it run out of the one page allocated for the FW response. Fix that by checking the lengths. Doing a < comparison would be sufficient, but the firmware should be doing it correctly, so check more strictly.
SeverityHigh
CVSS8.8
Exploit probability—
Product
Linux Kernel
PublishedOct 4, 2025
First seenOct 4, 2025
How to fix
Update
- linux linux_kernel5.4.244, 5.10.181, 5.15.113, 6.1.30, 6.3.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 4.1 ≤ v < 5.4.244, 5.5 ≤ v < 5.10.181, 5.11 ≤ v < 5.15.113, 5.16 ≤ v < 6.1.30, 6.2 ≤ v < 6.3.4, 6.4 | 5.4.244, 5.10.181, 5.15.113, 6.1.30, 6.3.4 |
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