CVE-2026-98887
wifi: mac80211_hwsim: reject undersized HWSIM_ATTR_TX_INFO
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: reject undersized HWSIM_ATTR_TX_INFO hwsim_tx_info_frame_received_nl() casts the HWSIM_ATTR_TX_INFO payload to a struct hwsim_tx_rate * and unconditionally reads IEEE80211_TX_MAX_RATES entries (8 bytes) from it. The policy only bounds the attribute from above (NLA_BINARY .len is a maximum) and the op sets GENL_DONT_VALIDATE_STRICT, so a short or zero-length attribute is accepted and the loop reads past the payload. Require the exact length in the policy, so a malformed attribute is rejected before the handler runs.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 23, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3a96bb65b4b820d8b41fa155781ec1c29e3479d4 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 59e1f2a0242232b4a3af144ae317d3913fc09046 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1ae85bb34fe3510659b86d6a5f8036dd498233f8 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6f6368b20f8c9481fa7ba7b672dcb3c9f36b2695 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < b5b1234bbfa25537fb9a5c0d62c328ed4547f721 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 13edd8ea7ff2ce6a964b290ef2034cd8cbed96c7 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 3dc723ac78a6e4fa0fd49e27e487ed319da40a9f 0 < 5.10.271 0 < 5.15.222 0 < 6.1.189 0 < 6.6.158 0 < 6.12.111 0 < 6.18.53
Linux / Linux
All versions affected References
git.kernel.org: https://git.kernel.org/stable/c/3a96bb65b4b820d8b41fa155781ec1c29e3479d4 git.kernel.org: https://git.kernel.org/stable/c/59e1f2a0242232b4a3af144ae317d3913fc09046 git.kernel.org: https://git.kernel.org/stable/c/1ae85bb34fe3510659b86d6a5f8036dd498233f8 git.kernel.org: https://git.kernel.org/stable/c/6f6368b20f8c9481fa7ba7b672dcb3c9f36b2695 git.kernel.org: https://git.kernel.org/stable/c/b5b1234bbfa25537fb9a5c0d62c328ed4547f721 git.kernel.org: https://git.kernel.org/stable/c/13edd8ea7ff2ce6a964b290ef2034cd8cbed96c7 git.kernel.org: https://git.kernel.org/stable/c/3dc723ac78a6e4fa0fd49e27e487ed319da40a9f