#VU103920 NULL pointer dereference in Linux kernel - CVE-2025-21697
Vulnerability identifier: #VU103920
Vulnerability risk: Low
CVSSv4.0: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2025-21697
CWE-ID:
CWE-476
Exploitation vector: Local
Exploit availability: No
Vulnerable software:
Linux kernel
Operating systems & Components /
Operating system
Vendor: Linux Foundation
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 v3d_irq() and v3d_hub_irq() functions in drivers/gpu/drm/v3d/v3d_irq.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
External links
https://git.kernel.org/stable/c/14e0a874488e79086340ba8e2d238cb9596b68a8
https://git.kernel.org/stable/c/1bd6303d08c85072ce40ac01a767ab67195105bd
https://git.kernel.org/stable/c/2a1c88f7ca5c12dff6fa6787492ac910bb9e4407
https://git.kernel.org/stable/c/63195bae1cbf78f1d392b1bc9ae4b03c82d0ebf3
https://git.kernel.org/stable/c/a34050f70e7955a359874dff1a912a748724a140
https://git.kernel.org/stable/c/b22467b1ae104073dcb11aa78562a331cd7fb0e0
https://git.kernel.org/stable/c/e4b5ccd392b92300a2b341705cc4805681094e49
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.
