Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: riscv: Prevent a bad reference count on CPU nodes When populating cache leaves we previously fetched the CPU device node at the very beginning. But when ACPI is enabled we go through a specific branch which returns early and does not call 'of_node_put' for the node that was acquired. Since we are not using a CPU device node for the ACPI code anyways, we can simply move the initialization of it just passed the ACPI block, and we are guaranteed to have an 'of_node_put' call for the acquired node. This prevents a bad reference count of the CPU device node. Moreover, the previous function did not check for errors when acquiring the device node, so a return -ENOENT has been added for that case.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.11, < 6.11.7 |
References
- https://git.kernel.org/stable/c/303846a3dc275e35fbb556d72f1e356ba669e4f8Patch
- https://git.kernel.org/stable/c/37233169a6ea912020c572f870075a63293b786aPatch
- https://git.kernel.org/stable/c/80aec5a855106c668b5978c48e789f010198b832
FAQ
What is CVE-2024-53075?
CVE-2024-53075 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: riscv: Prevent a bad reference count on CPU nodes When populating cache leaves we previously fetched the CPU device node at the ve...
How severe is CVE-2024-53075?
CVE-2024-53075 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-2024-53075?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.