Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: clk: Fix clk_hw_get_clk() when dev is NULL Any registered clk_core structure can have a NULL pointer in its dev field. While never actually documented, this is evidenced by the wide usage of clk_register and clk_hw_register with a NULL device pointer, and the fact that the core of_clk_hw_register() function also passes a NULL device pointer. A call to clk_hw_get_clk() on a clk_hw struct whose clk_core is in that case will result in a NULL pointer derefence when it calls dev_name() on that NULL device pointer. Add a test for this case and use NULL as the dev_id if the device pointer is NULL.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.11, < 5.15.33 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/0c1b56df451716ba207bbf59f303473643eee4fdPatch
- https://git.kernel.org/stable/c/23f89fe005b105f0dcc55034c13eb89f9b570facPatch
- https://git.kernel.org/stable/c/4be3e4c05d8dd1b83b75652cad88c9e752ec7054Patch
- https://git.kernel.org/stable/c/d183f20cf5a7b546d4108e796b98210ceb317579Patch
FAQ
What is CVE-2022-49187?
CVE-2022-49187 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: clk: Fix clk_hw_get_clk() when dev is NULL Any registered clk_core structure can have a NULL pointer in its dev field. While never...
How severe is CVE-2022-49187?
CVE-2022-49187 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49187?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.