CVE-2023-53589
wifi: iwlwifi: mvm: don't trust firmware n_channels
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 4, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
dcaf9f5ecb6f395152609bdc40660d9b593dca63 < e519a404a5bbba37693cb10fa61794a5fce4fd9b dcaf9f5ecb6f395152609bdc40660d9b593dca63 < d0d39bed9e95f27a246be91c5929254ac043ed30 dcaf9f5ecb6f395152609bdc40660d9b593dca63 < 05ad5a4d421ce65652fcb24d46b7e273130240d6 dcaf9f5ecb6f395152609bdc40660d9b593dca63 < 557ba100d8cf3661ff8d71c0b4a2cba8db555ec2 dcaf9f5ecb6f395152609bdc40660d9b593dca63 < c176f03350954b795322de0bfe1d7b514db41f45 dcaf9f5ecb6f395152609bdc40660d9b593dca63 < 682b6dc29d98e857e6ca4bbc077c7dc2899b7473
Linux / Linux
4.1
References
git.kernel.org: https://git.kernel.org/stable/c/e519a404a5bbba37693cb10fa61794a5fce4fd9b git.kernel.org: https://git.kernel.org/stable/c/d0d39bed9e95f27a246be91c5929254ac043ed30 git.kernel.org: https://git.kernel.org/stable/c/05ad5a4d421ce65652fcb24d46b7e273130240d6 git.kernel.org: https://git.kernel.org/stable/c/557ba100d8cf3661ff8d71c0b4a2cba8db555ec2 git.kernel.org: https://git.kernel.org/stable/c/c176f03350954b795322de0bfe1d7b514db41f45 git.kernel.org: https://git.kernel.org/stable/c/682b6dc29d98e857e6ca4bbc077c7dc2899b7473