CVE-2026-93803
wifi: libipw: fix key index receive bound checks
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: wifi: libipw: fix key index receive bound checks libipw_rx() reads skb->data[hdrlen + 3] to extract the WEP key index in both the software-decrypt key selection path and the hardware-decrypted IV/ICV strip path. In both places the existing guard only checks skb->len >= hdrlen + 3, which proves bytes up to hdrlen + 2 but not the byte at hdrlen + 3. Require hdrlen + 4 bytes before reading that item in both paths. This is a local source-boundary check only; it does not change the key index semantics.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 24, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 062840bdc9ee06169b3c371bf66711f1d7ec0bf4 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c54b643e9a0936d038921c547736574fd7382cea 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 74ed3669f26803b1761c1f55403062bea44c3466 0 < 6.12.111 0 < 6.18.53
Linux / Linux
All versions affected