CVE-2022-49656: ARM: meson: Fix refcount leak in meson_smp_prepare_cpus
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ARM: meson: Fix refcount leak in meson_smp_prepare_cpus of_find_compatible_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when done. Add missing of_node_put() to avoid refcount leak.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=4.15<4.19.252 | |
| Linux Kernel | >=4.20<5.4.205 | |
| Linux Kernel | >=5.5<5.10.130 | |
| Linux Kernel | >=5.11<5.15.54 | |
| Linux Kernel | >=5.16<5.18.11 | |
| Linux Kernel | =5.19-rc1 | |
| Linux Kernel | =5.19-rc2 | |
| Linux Kernel | =5.19-rc3 | |
| Linux Kernel | =5.19-rc4 | |
| Linux Kernel | =5.19-rc5 |
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Reference Links
- https://git.kernel.org/stable/c/2e1bcd33478ef44e63a45457055060b5fe4118ad
- https://git.kernel.org/stable/c/3cf8ece9113242c10f83c7675ea4f4f67959ee43
- https://git.kernel.org/stable/c/3d90607e7e6afa89768b0aaa915b58bd2b849276
- https://git.kernel.org/stable/c/7208101ded1e9dcc52c8f0f8b16474211c871c1a
- https://git.kernel.org/stable/c/c5fbf4f74c94fd60d5e9bf9f7f8268c3601562ca
- https://git.kernel.org/stable/c/34d2cd3fccced12b958b8848e3eff0ee4296764c
Frequently Asked Questions
What is the severity of CVE-2022-49656?
CVE-2022-49656 is classified as a medium severity vulnerability in the Linux kernel.
How do I fix CVE-2022-49656?
To address CVE-2022-49656, upgrade to the latest version of the Linux kernel that contains the fix.
What versions of the Linux kernel are affected by CVE-2022-49656?
CVE-2022-49656 affects Linux kernel versions between 4.15 and 5.19-rc5.
What is the nature of the vulnerability in CVE-2022-49656?
CVE-2022-49656 involves a refcount leak in the meson_smp_prepare_cpus function of the Linux kernel.
Is CVE-2022-49656 specific to certain hardware architectures?
Yes, CVE-2022-49656 specifically affects the ARM architecture in the Linux kernel.
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