CVE-2025-21989 — NULL Pointer Dereference in Linux
Severity
5.5MEDIUMNVD
OSV5.9
EPSS
0.0%
top 84.95%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedApr 2
Latest updateJul 8
Description
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: fix missing .is_two_pixels_per_container
Starting from 6.11, AMDGPU driver, while being loaded with amdgpu.dc=1,
due to lack of .is_two_pixels_per_container function in dce60_tg_funcs,
causes a NULL pointer dereference on PCs with old GPUs, such as R9 280X.
So this fix adds missing .is_two_pixels_per_container to dce60_tg_funcs.
(cherry picked from commit bd4b125eb949785c6f8a53b0494e32795421209d)
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
▶CVEListV5linux/linuxe6a901a00822659181c93c86d8bbc2a17779fddc — fefa811e616b5d0b555ed65743e528a0a8a0b377+3