CVE-2023-53330
Unknown
Unknown - Not Provided
BaseFortify
Publication date: 2025-09-16
Last updated on: 2025-12-10
Assigner: kernel.org
Description
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.
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| 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 |
Helpful Resources
Exploitability
CWE
KEV
| 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. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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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