NULL pointer dereference in Linux kernel firmware qcom driver

1) NULL pointer dereference

EUVDB-ID: #VU106958

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-21998

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the qcom_uefisecapp_probe() function in drivers/firmware/qcom/qcom_qseecom_uefisecapp.c. A local user can perform a denial of service (DoS) attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/c4e37b381a7a243c298a4858fc0a5a74e737c79a
https://git.kernel.org/stable/c/da8d493a80993972c427002684d0742560f3be4a
https://git.kernel.org/stable/c/f15a2b96a0e41c426c63a932d0e63cde7b9784aa

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.