CVE-2026-90344: Linux

Описание

Оригинално описание

In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: disconnect on CSA to channel 0 The refactor for the CSA parsing erroneously equates channel zero and no information present, leading it to ignore a CSA on an AP that advertises a switch to that (invalid) channel. This leads to not disconnecting, which we should. For Intel devices, this can lead to a firmware crash. Fix this by using an int type for the channel number as well as the opclass, and using a (negative) value that cannot be encoded in the element to indicate it's not present.

Засегнати продукти

• Linux Linux: 21c3f8f95554feff9bed15703e89adbe582e0383 преди 099aadb2012d7490bc584cc5075ef11cbc33f2c3; 21c3f8f95554feff9bed15703e89adbe582e0383 преди e7bc5ab93acd1c3f54feeb9fa19ead3530168090; 21c3f8f95554feff9bed15703e89adbe582e0383 преди eef374088450bb91626e133c7172b8a0e969a522; 21c3f8f95554feff9bed15703e89adbe582e0383 преди cf57f0a674cc3e3cda1a789359cc1238b61b9d7d
• Linux Linux: 6.9; преди 6.9; 6.12.110 до 6.12.*; 6.18.52 до 6.18.*; 7.2.6 до 7.2.*; от 7.3 нататък

История

Други уязвимости в Linux Linux

• 8.1CVE-2026-99270
• 7.8CVE-2026-99269
• CVE-2026-99268
• CVE-2026-99266
• CVE-2026-99267

Първоизточници

• https://www.cve.org/CVERecord?id=CVE-2026-90344
• https://nvd.nist.gov/vuln/detail/CVE-2026-90344
• https://git.kernel.org/stable/c/099aadb2012d7490bc584cc5075ef11cbc33f2c3
• https://git.kernel.org/stable/c/e7bc5ab93acd1c3f54feeb9fa19ead3530168090
• https://git.kernel.org/stable/c/eef374088450bb91626e133c7172b8a0e969a522
• https://git.kernel.org/stable/c/cf57f0a674cc3e3cda1a789359cc1238b61b9d7d