CVE-2022-1679
kernel: use-after-free in ath9k_htc_probe_device() could cause an escalation of privileges
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · February 7, 2022
Updated · October 15, 2026
Description
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.
Statement
Keeping this issue Moderate, because the impact is limited: likely only possibility of memory leak and crash, but not privileges escalation and both kind of race condition that is hard to trigger.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
To mitigate this issue, prevent the module ath9k from being loaded. Please see https://access.redhat.com/solutions/41278 for information on how to blacklist a kernel module to prevent it from loading automatically.
CVSS / CWE
CVSS 3.1 · 7CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 · Use After Free