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CVE-2023-53241
nfsd: call op_release, even when op_func returns an error
Description

In the Linux kernel, the following vulnerability has been resolved: nfsd: call op_release, even when op_func returns an error For ops with "trivial" replies, nfsd4_encode_operation will shortcut most of the encoding work and skip to just marshalling up the status. One of the things it skips is calling op_release. This could cause a memory leak in the layoutget codepath if there is an error at an inopportune time. Have the compound processing engine always call op_release, even when op_func sets an error in op->status. With this change, we also need nfsd4_block_get_device_info_scsi to set the gd_device pointer to NULL on error to avoid a double free.

INFO

Published Date :

Sept. 15, 2025, 3:15 p.m.

Last Modified :

Sept. 15, 2025, 3:22 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2023-53241 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Ensure op_release is always called to prevent memory leaks and double frees.
  • Always call op_release during compound processing.
  • Set gd_device pointer to NULL on error.
  • Apply the kernel patch for nfsd memory leak fix.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-53241.

URL Resource
https://git.kernel.org/stable/c/15a8b55dbb1ba154d82627547c5761cac884d810
https://git.kernel.org/stable/c/3d0dcada384af22dec764c8374a2997870ec86ae
https://git.kernel.org/stable/c/65a33135e91e6dd661ecdf1194b9d90c49ae3570
https://git.kernel.org/stable/c/b11d8162c24af4a351d21e2c804d25ca493305e3
https://git.kernel.org/stable/c/b623a8e5d38a69a3ef8644acb1030dd7c7bc28b3
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-53241 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-53241 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-53241 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-53241 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 15, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: nfsd: call op_release, even when op_func returns an error For ops with "trivial" replies, nfsd4_encode_operation will shortcut most of the encoding work and skip to just marshalling up the status. One of the things it skips is calling op_release. This could cause a memory leak in the layoutget codepath if there is an error at an inopportune time. Have the compound processing engine always call op_release, even when op_func sets an error in op->status. With this change, we also need nfsd4_block_get_device_info_scsi to set the gd_device pointer to NULL on error to avoid a double free.
    Added Reference https://git.kernel.org/stable/c/15a8b55dbb1ba154d82627547c5761cac884d810
    Added Reference https://git.kernel.org/stable/c/3d0dcada384af22dec764c8374a2997870ec86ae
    Added Reference https://git.kernel.org/stable/c/65a33135e91e6dd661ecdf1194b9d90c49ae3570
    Added Reference https://git.kernel.org/stable/c/b11d8162c24af4a351d21e2c804d25ca493305e3
    Added Reference https://git.kernel.org/stable/c/b623a8e5d38a69a3ef8644acb1030dd7c7bc28b3
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.