CVE-2022-50496: dm cache: Fix UAF in destroy()
In the Linux kernel, the following vulnerability has been resolved:
dm cache: Fix UAF in destroy()
Dmcache also has the same UAF problem when dmresume() and dmdestroy() are concurrent.
Therefore, cancelling timer again in destroy().
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2022-50496?
CVE-2022-50496 has a moderate severity rating due to the potential for user-after-free vulnerabilities in the dm_cache component.
How do I fix CVE-2022-50496?
To fix CVE-2022-50496, ensure that you apply the latest patches for your Linux Kernel that address the UAF issue in dm_cache.
What software versions are affected by CVE-2022-50496?
CVE-2022-50496 affects various versions of the Linux Kernel that utilize the dm_cache functionality.
What does the fix for CVE-2022-50496 involve?
The fix for CVE-2022-50496 involves modifying the destroy() function in the dm_cache to prevent user-after-free scenarios.
Is CVE-2022-50496 actively exploited?
As of the last report, there is no public information indicating that CVE-2022-50496 is actively exploited in the wild.