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CVE-2025-21998 Details

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.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:4.7 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
CNA: CISA-ADPCVSS-B:4.7 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://git.kernel.org/stable/c/c4e37b381a7a243c298a4858fc0a5a74e737c79a kernel.orgPatch
https://git.kernel.org/stable/c/da8d493a80993972c427002684d0742560f3be4a kernel.orgPatch
https://git.kernel.org/stable/c/f15a2b96a0e41c426c63a932d0e63cde7b9784aa kernel.orgPatch

Weakness Enumeration

CWE-IDCWE NameSource
CWE-367Time-of-check Time-of-use (TOCTOU) Race Condition[email protected]
CWE-476NULL Pointer Dereference[email protected]
CWE-476NULL Pointer DereferenceCISA-ADP

Affected Products

ProductVersions
linux linux kernel
>= 6.11, < 6.12.21
>= 6.13, < 6.13.9
6.14 rc1
6.14 rc2
6.14 rc3

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.14:rc4:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.14:rc5:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.14:rc6:*:*:*:*:*:*
  • cpe:2.3:o:linux:linux_kernel:6.14:rc7:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2025-21998
NVD Published Date:
Apr 3, 2025
NVD Last Modified:
Jun 17, 2026
Source:
kernel.org
CVE-2025-21998 Details - Not Deferred