CVE-2023-53662
BaseFortify
Publication date: 2025-10-07
Last updated on: 2026-02-06
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | From 5.15.160 (inc) to 5.16 (inc) |
Helpful Resources
Exploitability
| 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 ext4 filesystem code. Specifically, if filename casefolding fails during certain functions (ext4_fname_setup_filename and ext4_fname_prepare_lookup), memory allocated for the fscrypt_name struct's crypto_buf.name member is not freed properly, leading to a memory 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.
What immediate steps should I take to mitigate this vulnerability?
Apply the patch or update to a Linux kernel version that includes the fix for the memory leak in ext4_fname_setup_filename and ext4_fname_prepare_lookup functions to prevent memory leaks when filename casefolding fails.