CVE-2023-52526

erofs: fix memory leak of LZMA global compressed deduplication

Description

In the Linux kernel, the following vulnerability has been resolved: erofs: fix memory leak of LZMA global compressed deduplication When stressing microLZMA EROFS images with the new global compressed deduplication feature enabled (`-Ededupe`), I found some short-lived temporary pages weren't properly released, which could slowly cause unexpected OOMs hours later. Let's fix it now (LZ4 and DEFLATE don't have this issue.)

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.02%
Affected: Linux Linux
Affected: Linux Linux
Published at:
Updated at:

References

Link Tags
https://git.kernel.org/stable/c/6a5a8f0a9740f865693d5aa97a42cc4504538e18 patch
https://git.kernel.org/stable/c/c955751cbf864cf2055117dd3fe7f780d2a57b56 patch
https://git.kernel.org/stable/c/75a5221630fe5aa3fedba7a06be618db0f79ba1e patch

Frequently Asked Questions

What is the severity of CVE-2023-52526?
CVE-2023-52526 has been scored as a medium severity vulnerability.
How to fix CVE-2023-52526?
To fix CVE-2023-52526, 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-2023-52526 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-52526 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.
What software or system is affected by CVE-2023-52526?
CVE-2023-52526 affects Linux Linux, Linux Linux.
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