Vulnerability CVE-2023-52526


Published: 2024-03-02

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.)

 References:
https://git.kernel.org/stable/c/6a5a8f0a9740f865693d5aa97a42cc4504538e18
https://git.kernel.org/stable/c/c955751cbf864cf2055117dd3fe7f780d2a57b56
https://git.kernel.org/stable/c/75a5221630fe5aa3fedba7a06be618db0f79ba1e

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