CVE-2022-49457: ARM: versatile: Add missing of_node_put in dcscb_init
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ARM: versatile: Add missing of_node_put in dcscb_init The device_node pointer is returned by of_find_compatible_node with refcount incremented. We should use of_node_put() to avoid the refcount leak.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | <4.9.318 | |
| Linux Kernel | >=4.10<4.14.283 | |
| Linux Kernel | >=4.15<4.19.247 | |
| Linux Kernel | >=4.20<5.4.198 | |
| Linux Kernel | >=5.5<5.10.121 | |
| Linux Kernel | >=5.11<5.15.46 | |
| Linux Kernel | >=5.16<5.17.14 | |
| Linux Kernel | >=5.18<5.18.3 |
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Reference Links
- https://git.kernel.org/stable/c/2d7b23db35254b7d46e852967090c64cdccf24da
- https://git.kernel.org/stable/c/bbdfb7d4f036118d36415a2575efa6f5246505ae
- https://git.kernel.org/stable/c/a0fc05cd17617e63fc13ad0c01f3f0afd890d8ec
- https://git.kernel.org/stable/c/fcd1999ba97445a12cc394f5f42ffd9116bf0185
- https://git.kernel.org/stable/c/d146e2a9864ade19914494de3fb520390b415d58
- https://git.kernel.org/stable/c/83c329b980bddbc8c6a3d287d91f2103a4d4a860
- https://git.kernel.org/stable/c/3c6006faed9aba5144b33176d061031a9be66954
- https://git.kernel.org/stable/c/d6de7b181c29cd4578ec139aafb5eac062abbe1b
- https://git.kernel.org/stable/c/23b44f9c649bbef10b45fa33080cd8b4166800ae
Frequently Asked Questions
What is the severity of CVE-2022-49457?
CVE-2022-49457 is classified as a medium severity vulnerability affecting the Linux kernel.
How do I fix CVE-2022-49457?
To fix CVE-2022-49457, upgrade your Linux kernel to a version that includes the necessary patches.
What software versions are affected by CVE-2022-49457?
CVE-2022-49457 affects various versions of the Linux kernel from 4.x up to 5.18.3.
What is the nature of the vulnerability in CVE-2022-49457?
CVE-2022-49457 involves a refcount leak in the ARM versatile architecture within the Linux kernel.
Is CVE-2022-49457 a remote code execution vulnerability?
No, CVE-2022-49457 does not involve remote code execution; it pertains to a memory management issue.
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