CVE-2022-49681: xtensa: xtfpga: Fix refcount leak bug in setup
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: xtensa: xtfpga: Fix refcount leak bug in setup In machine_setup(), of_find_compatible_node() will return a node pointer with refcount incremented. We should use of_node_put() when it is not used anymore.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | <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/b12d5c52f073a0420622aaf2f21b615cce8b36cc
- https://git.kernel.org/stable/c/35d7e961be68732eb3acaeba81fb81ca16eafd05
- https://git.kernel.org/stable/c/0715d0e60052662c3f225342062f174dd721d1c7
- https://git.kernel.org/stable/c/a52972ee706b438302eb0350e61f378eb191e3d1
- https://git.kernel.org/stable/c/6c0839cf1b9e1b3c88da6af76794583cbfae8da3
- https://git.kernel.org/stable/c/0162451723178602c37f0555d235dfa17e486112
- https://git.kernel.org/stable/c/9b30c5c8884eda3f541229899671cebbad15979b
- https://git.kernel.org/stable/c/173940b3ae40114d4179c251a98ee039dc9cd5b3
Frequently Asked Questions
What is the severity of CVE-2022-49681?
CVE-2022-49681 has been classified as medium severity due to its potential impact on system stability.
How do I fix CVE-2022-49681?
To fix CVE-2022-49681, update your Linux kernel to a version above 5.19-rc3.
Which versions of the Linux kernel are affected by CVE-2022-49681?
CVE-2022-49681 affects Linux kernel versions prior to 5.19-rc3, including older versions between 4.9.321 and 5.18.8.
What kind of vulnerability is CVE-2022-49681?
CVE-2022-49681 is a refcount leak vulnerability found in the xtensa architecture of the Linux kernel.
Is there any exploit for CVE-2022-49681?
Currently, there are no publicly available exploits for CVE-2022-49681, but it is recommended to apply patches to mitigate potential risks.
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