CVE-2022-49682: xtensa: Fix refcount leak bug in time.c
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: xtensa: Fix refcount leak bug in time.c In calibrate_ccount(), 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/3e5eb904d9ba657308fc75a5de434b0e58dcb8d7
- https://git.kernel.org/stable/c/7de4502af68f4f3932f450157f5483eb7b33cb74
- https://git.kernel.org/stable/c/f1eaf4ba5372ad111f687a80c67e270708e14c23
- https://git.kernel.org/stable/c/e5234a9d64a976abd134a14710dcd5188158a7c5
- https://git.kernel.org/stable/c/af0ff2da01521144bc11194f4c26485d7c9cee73
- https://git.kernel.org/stable/c/0dcc1dd8a5dd9240639f1051dfaa2dffc9fbbde5
- https://git.kernel.org/stable/c/0e403a383c14b63c86bd9df085b7e573e9caee64
- https://git.kernel.org/stable/c/a0117dc956429f2ede17b323046e1968d1849150
Frequently Asked Questions
What is the severity of CVE-2022-49682?
CVE-2022-49682 is classified as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2022-49682?
To mitigate CVE-2022-49682, it is recommended to update the Linux kernel to a patched version above 5.19-rc3.
Which versions of the Linux kernel are affected by CVE-2022-49682?
CVE-2022-49682 affects various Linux kernel versions from 4.9.321 up to 5.19-rc3.
What type of vulnerability is CVE-2022-49682?
CVE-2022-49682 is a refcount leak vulnerability found in the calibrate_ccount() function of the Linux kernel.
Is CVE-2022-49682 specific to any architecture?
Yes, CVE-2022-49682 specifically affects the xtensa architecture in the Linux kernel.
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