{"id":"CVE-2026-90344","published":"2026-09-17T17:17:33.103","lastModified":"2026-09-17T17:17:33.103","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mac80211: disconnect on CSA to channel 0\n\nThe refactor for the CSA parsing erroneously equates channel\nzero and no information present, leading it to ignore a CSA\non an AP that advertises a switch to that (invalid) channel.\nThis leads to not disconnecting, which we should. For Intel\ndevices, this can lead to a firmware crash.\n\nFix this by using an int type for the channel number as well\nas the opclass, and using a (negative) value that cannot be\nencoded in the element to indicate it's not present.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/099aadb2012d7490bc584cc5075ef11cbc33f2c3","tags":[]},{"url":"https://git.kernel.org/stable/c/cf57f0a674cc3e3cda1a789359cc1238b61b9d7d","tags":[]},{"url":"https://git.kernel.org/stable/c/e7bc5ab93acd1c3f54feeb9fa19ead3530168090","tags":[]},{"url":"https://git.kernel.org/stable/c/eef374088450bb91626e133c7172b8a0e969a522","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}