CVE-2023-53330
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-16

Last updated on: 2025-12-10

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: caif: fix memory leak in cfctrl_linkup_request() When linktype is unknown or kzalloc failed in cfctrl_linkup_request(), pkt is not released. Add release process to error path.
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Meta Information
Published
2025-09-16
Last Modified
2025-12-10
Generated
2026-06-16
AI Q&A
2025-09-16
EPSS Evaluated
2026-06-14
NVD
CVE-2023-53330
Affected Vendors & Products
Showing 9 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 2.6.35 (inc) to 4.14.303 (exc)
linux linux_kernel From 4.15 (inc) to 4.19.270 (exc)
linux linux_kernel From 4.20 (inc) to 5.4.229 (exc)
linux linux_kernel From 5.5 (inc) to 5.10.163 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.87 (exc)
linux linux_kernel From 5.16 (inc) to 6.0.19 (exc)
linux linux_kernel From 6.1 (inc) to 6.1.5 (exc)
linux linux_kernel 6.2
linux linux_kernel 6.2
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Exploitability
CWE
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KEV
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CWE ID Description
CWE-401 The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
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Executive Summary

This vulnerability is a memory leak in the Linux kernel's caif component, specifically in the function cfctrl_linkup_request(). When the link type is unknown or memory allocation (kzalloc) fails, a packet (pkt) is not properly released, causing a memory leak. The fix adds a release process to the error path to prevent this leak.

Impact Analysis

The memory leak caused by this vulnerability can lead to increased memory usage and potentially degrade system performance or stability over time if the error condition occurs frequently.

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