CVE-2022-49334: mm/huge_memory: Fix xarray node memory leak
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: mm/huge_memory: Fix xarray node memory leak If xas_split_alloc() fails to allocate the necessary nodes to complete the xarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem() then interprets as "Please allocate more memory", not as "Please free any unnecessary memory" (which was the intended outcome). It's confusing to use xas_nomem() to free memory in this context, so call xas_destroy() instead.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=5.17<5.17.15 | |
| Linux Kernel | >=5.18<5.18.4 | |
| Linux Kernel | =5.19-rc1 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2022-49334?
CVE-2022-49334 has a high severity rating due to its potential impact on system stability.
How do I fix CVE-2022-49334?
The fix for CVE-2022-49334 involves updating the Linux kernel to a version that includes the patch against this vulnerability.
Which versions of the Linux kernel are affected by CVE-2022-49334?
CVE-2022-49334 affects Linux kernel versions between 5.17.0 and 5.19-rc1.
What type of vulnerability is CVE-2022-49334?
CVE-2022-49334 is classified as a memory leak vulnerability within the Linux kernel.
What is the impact of CVE-2022-49334 on system performance?
The impact of CVE-2022-49334 may lead to increased memory consumption and potential crashes, affecting overall system performance.
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