Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 21c3f8f95554feff9bed15703e89adbe582e0383 before 099aadb2012d7490bc584cc5075ef11cbc33f2c3; affected 21c3f8f95554feff9bed15703e89adbe582e0383 before e7bc5ab93acd1c3f54feeb9fa19ead3530168090; affected 21c3f8f95554feff9bed15703e89adbe582e0383 before eef374088450bb91626e133c7172b8a0e969a522; affected 21c3f8f95554feff9bed15703e89adbe582e0383 before cf57f0a674cc3e3cda1a789359cc1238b61b9d7d |
| Linux / Linux | affected 6.9; unaffected 0 before 6.9; unaffected 6.12.110 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.