CVE-2022-49242: ASoC: mxs: Fix error handling in mxs_sgtl5000_probe
First published: Wed Feb 26 2025(Updated: )
In the Linux kernel, the following vulnerability has been resolved: ASoC: mxs: Fix error handling in mxs_sgtl5000_probe This function only calls of_node_put() in the regular path. And it will cause refcount leak in error paths. For example, when codec_np is NULL, saif_np[0] and saif_np[1] are not NULL, it will cause leaks. of_node_put() will check if the node pointer is NULL, so we can call it directly to release the refcount of regular pointers.
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | ||
| Linux Kernel | >=3.5<4.9.311 | |
| Linux Kernel | >=4.10<4.14.276 | |
| Linux Kernel | >=4.15<4.19.238 | |
| Linux Kernel | >=4.20<5.4.189 | |
| Linux Kernel | >=5.5<5.10.110 | |
| Linux Kernel | >=5.11<5.15.33 | |
| Linux Kernel | >=5.16<5.16.19 | |
| Linux Kernel | >=5.17<5.17.2 |
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Reference Links
- https://git.kernel.org/stable/c/f16ad2c0e22687f80e5981c67374023f51c204b9
- https://git.kernel.org/stable/c/790d2628e3fcc819d8f5572eb5615113fb2e727a
- https://git.kernel.org/stable/c/f8d38056bcd220ea6f0802a5586d1a12ebcce849
- https://git.kernel.org/stable/c/67e12f1cb2f97468c12b59e21975eaa0f332e7d2
- https://git.kernel.org/stable/c/86b6cf989437e694fd0a15782b5a513853a739e0
- https://git.kernel.org/stable/c/44acdaf7acb60054d872bed18ce0e7db8ce900ce
- https://git.kernel.org/stable/c/d2923b48d99fe663cb93d8b481c93299fcd68656
- https://git.kernel.org/stable/c/8d880226c86f37624e2a5f3c6d92ac0ec3375f96
- https://git.kernel.org/stable/c/6ae0a4d8fec551ec581d620f0eb1fe31f755551c
Frequently Asked Questions
What is the severity of CVE-2022-49242?
CVE-2022-49242 is classified as a high-severity vulnerability due to the potential for refcount leaks in error handling paths in the Linux kernel.
How do I fix CVE-2022-49242?
To fix CVE-2022-49242, update the Linux kernel to the latest version that addresses this vulnerability.
What systems are affected by CVE-2022-49242?
CVE-2022-49242 affects multiple versions of the Linux kernel ranging from 3.5 to 5.17.2.
What types of exploits are possible with CVE-2022-49242?
Exploiting CVE-2022-49242 may lead to memory leaks and potential denial of service due to resource mismanagement.
When was CVE-2022-49242 first reported?
CVE-2022-49242 was reported and addressed in early 2022.
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