---
id: CVE-2023-52653
title: 'SUNRPC: fix a memleak in gss_import_v2_context'
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  SUNRPC: fix a memleak in gss_import_v2_context

  The ctx->mech_used.data allocated by kmemdup is not freed in neither
  gss_import_v2_context nor it only caller gss_krb5_i…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
cvssSource: adp
vendor: Linux
product: Linux
affected:
  - >-
    Linux >= 47d84807762966c3611c38adecec6ea703ddda7a <
    32a15b6a9a0ac326ca65ce988a1ba046517af3d5
  - >-
    Linux >= 47d84807762966c3611c38adecec6ea703ddda7a <
    99044c01ed5329e73651c054d8a4baacdbb1a27c
  - >-
    Linux >= 47d84807762966c3611c38adecec6ea703ddda7a <
    47ac11db93e74ac49cd6c3fc69bcbc5964c4a8b4
  - >-
    Linux >= 47d84807762966c3611c38adecec6ea703ddda7a <
    d111e30d9cd846bb368faf3637dc0f71fcbcf822
  - >-
    Linux >= 47d84807762966c3611c38adecec6ea703ddda7a <
    e67b652d8e8591d3b1e569dbcdfcee15993e91fa
  - Linux 2.6.35
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-06-06T18:26:34.838791Z'
published: '2024-05-01'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T12:17:18.750Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2023-52653'
references:
  - url: 'https://git.kernel.org/stable/c/32a15b6a9a0ac326ca65ce988a1ba046517af3d5'
  - url: 'https://git.kernel.org/stable/c/99044c01ed5329e73651c054d8a4baacdbb1a27c'
  - url: 'https://git.kernel.org/stable/c/47ac11db93e74ac49cd6c3fc69bcbc5964c4a8b4'
  - url: 'https://git.kernel.org/stable/c/d111e30d9cd846bb368faf3637dc0f71fcbcf822'
  - url: 'https://git.kernel.org/stable/c/e67b652d8e8591d3b1e569dbcdfcee15993e91fa'
tags:
  - cve.org
epss: 0.00275
epssPercentile: 0.19986
ingestedAt: '2026-11-03T11:43:15.781Z'
---

## Overview

In the Linux kernel, the following vulnerability has been resolved:

SUNRPC: fix a memleak in gss_import_v2_context

The ctx->mech_used.data allocated by kmemdup is not freed in neither
gss_import_v2_context nor it only caller gss_krb5_import_sec_context,
which frees ctx on error.

Thus, this patch reform the last call of gss_import_v2_context to the
gss_krb5_import_ctx_v2, preventing the memleak while keepping the return
formation.

## Affected

- `Linux >= 47d84807762966c3611c38adecec6ea703ddda7a < 32a15b6a9a0ac326ca65ce988a1ba046517af3d5`
- `Linux >= 47d84807762966c3611c38adecec6ea703ddda7a < 99044c01ed5329e73651c054d8a4baacdbb1a27c`
- `Linux >= 47d84807762966c3611c38adecec6ea703ddda7a < 47ac11db93e74ac49cd6c3fc69bcbc5964c4a8b4`
- `Linux >= 47d84807762966c3611c38adecec6ea703ddda7a < d111e30d9cd846bb368faf3637dc0f71fcbcf822`
- `Linux >= 47d84807762966c3611c38adecec6ea703ddda7a < e67b652d8e8591d3b1e569dbcdfcee15993e91fa`
- `Linux 2.6.35`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.