CVE-2023-23005

Description

In the Linux kernel before 6.2, mm/memory-tiers.c misinterprets the alloc_memory_type return value (expects it to be NULL in the error case, whereas it is actually an error pointer). NOTE: this is disputed by third parties because there are no realistic cases in which a user can cause the alloc_memory_type error case to be reached.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.01%
Third-Party Advisory suse.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/torvalds/linux/commit/4a625ceee8a0ab0273534cb6b432ce6b331db5ee patch
https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.2 mailing list release notes patch
https://bugzilla.suse.com/show_bug.cgi?id=1208844#c2 issue tracking third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2023-23005?
CVE-2023-23005 has been scored as a medium severity vulnerability.
How to fix CVE-2023-23005?
To fix CVE-2023-23005, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-23005 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-23005 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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