CVE-2022-49677: ARM: cns3xxx: Fix refcount leak in cns3xxx_init
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ARM: cns3xxx: Fix refcount leak in cns3xxx_init 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 | >=3.10<4.9.321 | |
| Linux Kernel | >=4.10<4.14.286 | |
| Linux Kernel | >=4.15<4.19.250 | |
| Linux Kernel | >=4.20<5.4.202 | |
| Linux Kernel | >=5.5<5.10.127 | |
| Linux Kernel | >=5.11<5.15.51 | |
| Linux Kernel | >=5.16<5.18.8 | |
| Linux Kernel | =5.19-rc1 | |
| Linux Kernel | =5.19-rc2 | |
| Linux Kernel | =5.19-rc3 |
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Reference Links
- https://git.kernel.org/stable/c/b8b84e01ca94e2e1f5492353e9c24dab520b2e5b
- https://git.kernel.org/stable/c/45bebbc8cea7d586a6216dc62814bdb380b9b29b
- https://git.kernel.org/stable/c/68d4303bf59662b64bd555e2aa0518282d20aa4f
- https://git.kernel.org/stable/c/d1359e4129ad43e43972a28838b87291c51de23d
- https://git.kernel.org/stable/c/c980392af1473d6d5662f70d8089c8e6d85144a4
- https://git.kernel.org/stable/c/da3ee7cd2f15922ad88a7ca6deee2eafdc7cd214
- https://git.kernel.org/stable/c/dc5170aae24e04068fd5ea125d06c0ab51f48a27
- https://git.kernel.org/stable/c/1ba904b6b16e08de5aed7c1349838d9cd0d178c5
Frequently Asked Questions
What is the severity of CVE-2022-49677?
CVE-2022-49677 has been classified as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2022-49677?
To fix CVE-2022-49677, update your Linux kernel to a version that includes the patch for this vulnerability.
Which Linux kernel versions are affected by CVE-2022-49677?
CVE-2022-49677 affects multiple versions of the Linux kernel from 3.10 to 5.19-rc3.
What systems are vulnerable to CVE-2022-49677?
Systems running vulnerable versions of the Linux kernel, particularly on ARM architectures, are at risk from CVE-2022-49677.
Is CVE-2022-49677 an easily exploitable vulnerability?
CVE-2022-49677 is not known to be easily exploitable; however, it is recommended to apply patches to mitigate potential risks.
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