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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2025-21994 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix incorrect validation for num_aces field of smb_acl parse_dcal() validate num_aces to allocate posix_ace_state_array. if (num_aces > ULONG_MAX / sizeof(struct smb_ace *)) It is an incorrect validation that we can create an array of size ULONG_MAX. smb_acl has ->size field to calculate actual number of aces in request buffer size. Use this to check invalid num_aces.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/1b8b67f3c5e5169535e26efedd3e422172e2db64 kernel.org Patch 
https://git.kernel.org/stable/c/9c4e202abff45f8eac17989e549fc7a75095f675 kernel.org Patch 
https://git.kernel.org/stable/c/a4cb17797a5d241f1e509cb5b46ed95a80c2f5fd kernel.org Patch 
https://git.kernel.org/stable/c/c3a3484d9d31b27a3db0fab91fcf191132d65236 kernel.org Patch 
https://git.kernel.org/stable/c/d0f87370622a853b57e851f7d5a5452b72300f19 kernel.org Patch 
https://git.kernel.org/stable/c/f6a6721802ac2f12f4c1bbe839a4c229b61866f2 kernel.org Patch 
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html CVE

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

4 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2025-21994
NVD Published Date:
04/02/2025
NVD Last Modified:
11/03/2025
Source:
kernel.org