CVE-2024-53075
MediumIn 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 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions
Linux kernel versions
6.11
and later are affected. Fixed in
6.11.7,
6.12
and their respective stable series.
References
The following references provide additional information about CVE-2024-53075 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/303846a3dc275e35fbb556d72f1e356ba669e4f8
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PatchKernel patch commithttps://git.kernel.org/stable/c/37233169a6ea912020c572f870075a63293b786a
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PatchKernel patch commithttps://git.kernel.org/stable/c/80aec5a855106c668b5978c48e789f010198b832
Frequently asked questions
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What is CVE-2024-53075?
CVE-2024-53075 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.11 onward and has been patched in 6.11.7 and 6.12. CVE-2024-53075 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2024-53075?
CVE-2024-53075 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2024-53075?
Yes — CVE-2024-53075 has been patched. Fixed versions include 6.11.7 and 6.12. If you are running Linux kernel 6.11 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2024-53075 actively exploited?
No — CVE-2024-53075 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.