CVE-2025-21998

MediumCVSS 4.7/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 4.7/10CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-367CWE-476

Affected software

VendorProductVersions
LinuxLinux>= 6612103ec35af6058bb85ab24dae28e119b3c055, < c4e37b381a7a243c298a4858fc0a5a74e737c79a; >= 6612103ec35af6058bb85ab24dae28e119b3c055, < f15a2b96a0e41c426c63a932d0e63cde7b9784aa; >= 6612103ec35af6058bb85ab24dae28e119b3c055, < da8d493a80993972c427002684d0742560f3be4a
LinuxLinux6.11

References

Timeline

Published
Apr 3, 2025
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2025-21998: Medium severity, CVSS 4.7 | Vulnix