CVE-2023-53662

MEDIUM EPSS 4.0%
Published Oct 7, 20258mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 7, 2025 8mo ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leaks in ext4_fname_{setup_filename,prepare_lookup} If the filename casefolding fails, we'll be leaking memory from the fscrypt_name struct, namely from the 'crypto_buf.name' member. Make sure we free it in the error path on both ext4_fname_setup_filename() and ext4_fname_prepare_lookup() functions.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
4.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 2

VendorProductVersionRange
linuxlinux_kernel*≥5.13  –  <6.1.54
linuxlinux_kernel*≥6.2  –  <6.5.4

References 4

  • git.kernel.org https://git.kernel.org/stable/c/1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/36daf050be3f6f067631dc52054de2d3b7cc849f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7ca4b085f430f3774c3838b3da569ceccd6a0177
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/98fc9c2cc45cfcb56961a73de3ec69b474063fc0

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1fb3f1bbfdb511034b0360dbeb0f6a8424ed2a5c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/36daf050be3f6f067631dc52054de2d3b7cc849f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7ca4b085f430f3774c3838b3da569ceccd6a0177
    Patch