CVE-2025-21998

MEDIUM

Linux kernel - Use After Free

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: firmware: qcom: uefisecapp: fix efivars registration race Since the conversion to using the TZ allocator, the efivars service is registered before the memory pool has been allocated, something which can lead to a NULL-pointer dereference in case of a racing EFI variable access. Make sure that all resources have been set up before registering the efivars.

Scores

CVSS v3 4.7
EPSS 0.0004
EPSS Percentile 11.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-367 CWE-476
Status published
Products (4)
linux/Kernel 6.11.0 - 6.12.21linux
linux/Kernel 6.13.0 - 6.13.9linux
linux/linux_kernel 6.14 rc1 (7 CPE variants)
linux/linux_kernel 6.11 - 6.12.21
Published Apr 03, 2025
Tracked Since Feb 18, 2026