Description
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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
21c3f8f95554feff9bed15703e89adbe582e0383 to < 099aadb2012d7490bc584cc5075ef11cbc33f2c3affected21c3f8f95554feff9bed15703e89adbe582e0383 to < e7bc5ab93acd1c3f54feeb9fa19ead3530168090affected21c3f8f95554feff9bed15703e89adbe582e0383 to < eef374088450bb91626e133c7172b8a0e969a522affected21c3f8f95554feff9bed15703e89adbe582e0383 to < cf57f0a674cc3e3cda1a789359cc1238b61b9d7daffected
Linux Linux
Default version status: affected
6.9affected0 to < 6.9unaffected6.12.110 to ≤ 6.12.*unaffected6.18.52 to ≤ 6.18.*unaffected7.2.6 to ≤ 7.2.*unaffected7.3 to ≤ *unaffected