CVE-2022-49609: power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: power/reset: arm-versatile: Fix refcount leak in versatile_reboot_probe of_find_matching_node_and_match() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. 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 | >=3.18<4.9.325 | |
| Linux Kernel | >=4.10<4.14.290 | |
| Linux Kernel | >=4.15<4.19.254 | |
| Linux Kernel | >=4.20<5.4.208 | |
| Linux Kernel | >=5.5<5.10.134 | |
| Linux Kernel | >=5.11<5.15.58 | |
| Linux Kernel | >=5.16<5.18.15 | |
| 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 | |
| Linux Kernel | =5.19-rc6 |
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Reference Links
- https://git.kernel.org/stable/c/b4d224eec96a18fa8959512cd9e5b6a50bd16a41
- https://git.kernel.org/stable/c/a9ed3ad3a8d1dfbc829d86edb3236873a315db11
- https://git.kernel.org/stable/c/6689754b121bd487f99680280102b3a5cd7374af
- https://git.kernel.org/stable/c/78bdf732cf5d74d1c6ecda06830a91f80a4aef6f
- https://git.kernel.org/stable/c/493ceca3271316e74639c89ff8ac35883de64256
- https://git.kernel.org/stable/c/71ab83ac65e2d671552374123bf920c1d698335a
- https://git.kernel.org/stable/c/49fa778ee044b00471dd9ccae5f6a121fffea1ac
- https://git.kernel.org/stable/c/80192eff64eee9b3bc0594a47381937b94b9d65a
Frequently Asked Questions
What is the severity of CVE-2022-49609?
CVE-2022-49609 has been classified with medium severity due to the potential refcount leak that could affect system stability.
How do I fix CVE-2022-49609?
To fix CVE-2022-49609, update your Linux kernel to a version where the vulnerability has been patched.
What is the impact of CVE-2022-49609?
The impact of CVE-2022-49609 includes potential system instability resulting from a refcount leak in the versatile_reboot_probe function.
Which versions are affected by CVE-2022-49609?
CVE-2022-49609 affects various versions of the Linux kernel between 3.18 and 5.19-rc6.
Is CVE-2022-49609 exploitable?
CVE-2022-49609 is not directly exploitable but can lead to unwanted behaviors affecting system performance.
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