CVE-2025-21998

Source
https://nvd.nist.gov/vuln/detail/CVE-2025-21998
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21998.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-21998
Downstream
Published
2025-04-03T07:19:02.272Z
Modified
2025-11-20T08:13:03.355296Z
Severity
  • 4.7 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
firmware: qcom: uefisecapp: fix efivars registration race
Details

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.

References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6612103ec35af6058bb85ab24dae28e119b3c055
Fixed
c4e37b381a7a243c298a4858fc0a5a74e737c79a
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6612103ec35af6058bb85ab24dae28e119b3c055
Fixed
f15a2b96a0e41c426c63a932d0e63cde7b9784aa
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
6612103ec35af6058bb85ab24dae28e119b3c055
Fixed
da8d493a80993972c427002684d0742560f3be4a

Affected versions

v6.*

v6.10
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.12.10
v6.12.11
v6.12.12
v6.12.13
v6.12.14
v6.12.15
v6.12.16
v6.12.17
v6.12.18
v6.12.19
v6.12.2
v6.12.20
v6.12.3
v6.12.4
v6.12.5
v6.12.6
v6.12.7
v6.12.8
v6.12.9
v6.13
v6.13-rc1
v6.13-rc2
v6.13-rc3
v6.13-rc4
v6.13-rc5
v6.13-rc6
v6.13-rc7
v6.13.1
v6.13.2
v6.13.3
v6.13.4
v6.13.5
v6.13.6
v6.13.7
v6.13.8
v6.14-rc1

Database specific

vanir_signatures

[
    {
        "signature_type": "Function",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "file": "drivers/firmware/qcom/qcom_qseecom_uefisecapp.c",
            "function": "qcom_uefisecapp_probe"
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@da8d493a80993972c427002684d0742560f3be4a",
        "digest": {
            "length": 746.0,
            "function_hash": "50579163368325629018624999214533123964"
        },
        "id": "CVE-2025-21998-51531d78"
    },
    {
        "signature_type": "Line",
        "deprecated": false,
        "signature_version": "v1",
        "target": {
            "file": "drivers/firmware/qcom/qcom_qseecom_uefisecapp.c"
        },
        "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@da8d493a80993972c427002684d0742560f3be4a",
        "digest": {
            "line_hashes": [
                "68685052580535303013245166863382880618",
                "7695740514274803738701958330388659148",
                "67368391200645627681768190516043551261",
                "130210703817765807752619397273156269814",
                "115216389724655089255819683823709185243",
                "264250308276947122833812134331961752523",
                "141146409717502050912267562434230297048",
                "312107096958154269729934347569110565839",
                "259034563941982159081174234722899627234",
                "182707316803586265554964075701334511595",
                "245377583533876294548282551995464630383",
                "324577335403186152250457176208172842993",
                "185234842229038827213631643053783480054"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2025-21998-e18bef8b"
    }
]

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.11.0
Fixed
6.12.21
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.13.9