A use-after-free flaw was found in the Linux kernel’s Atheros wireless adapter driver in the way a user forces the ath9k_htc_wait_for_target function to fail with some input messages. This flaw allows a local user to crash or potentially escalate their privileges on the system.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
| Link | Tags |
|---|---|
| https://lore.kernel.org/lkml/87ilqc7jv9.fsf%40kernel.org/t/ | third party advisory patch |
| https://security.netapp.com/advisory/ntap-20220629-0007/ | third party advisory |
| https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html | third party advisory mailing list |
| https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html | third party advisory mailing list |