What is the severity of CVE-2022-49897?

CVE-2022-49897 has a low severity rating due to the nature of the memory leak affecting keyring destruction during mount failures.

How do I fix CVE-2022-49897?

To fix CVE-2022-49897, update your Linux kernel to the latest version where this vulnerability has been addressed.

What are the potential impacts of CVE-2022-49897?

The potential impacts of CVE-2022-49897 include memory leaks that could lead to increased memory usage in the system.

Which Linux kernel versions are affected by CVE-2022-49897?

CVE-2022-49897 affects various versions of the Linux kernel prior to the fix being implemented in the latest releases.

Is there an exploit available for CVE-2022-49897?

There is currently no known public exploit for CVE-2022-49897, but it is important to address the vulnerability to maintain system integrity.

Vulnerability/
CVE-2022-49897

1/5/2025

CVE-2022-49897: fscrypt: fix keyring memory leak on mount failure

First published: Thu May 01 2025(Updated: )

In the Linux kernel, the following vulnerability has been resolved: fscrypt: fix keyring memory leak on mount failure Commit d7e7b9af104c ("fscrypt: stop using keyrings subsystem for fscrypt_master_key") moved the keyring destruction from __put_super() to generic_shutdown_super() so that the filesystem's block device(s) are still available. Unfortunately, this causes a memory leak in the case where a mount is attempted with the test_dummy_encryption mount option, but the mount fails after the option has already been processed. To fix this, attempt the keyring destruction in both places.

Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67

Affected Software	Affected Version	How to fix
Linux Kernel

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Frequently Asked Questions

What is the severity of CVE-2022-49897?
CVE-2022-49897 has a low severity rating due to the nature of the memory leak affecting keyring destruction during mount failures.
How do I fix CVE-2022-49897?
To fix CVE-2022-49897, update your Linux kernel to the latest version where this vulnerability has been addressed.
What are the potential impacts of CVE-2022-49897?
The potential impacts of CVE-2022-49897 include memory leaks that could lead to increased memory usage in the system.
Which Linux kernel versions are affected by CVE-2022-49897?
CVE-2022-49897 affects various versions of the Linux kernel prior to the fix being implemented in the latest releases.
Is there an exploit available for CVE-2022-49897?
There is currently no known public exploit for CVE-2022-49897, but it is important to address the vulnerability to maintain system integrity.

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