UBUNTU-CVE-2025-21989
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)
02 / AFFECTED SOFTWARE
Affected packages
29 explicit affected versions
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03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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)
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/e204aab79e01bc8ff750645666993ed8b719de57
- https://git.kernel.org/stable/c/36d04c9313d8d83ead92242f037099ac73e02120
- https://git.kernel.org/stable/c/e204aab79e01bc8ff750645666993ed8b719de57
- https://git.kernel.org/stable/c/fefa811e616b5d0b555ed65743e528a0a8a0b377
- https://ubuntu.com/security/CVE-2025-21989
- https://ubuntu.com/security/notices/USN-7605-1
- https://ubuntu.com/security/notices/USN-7605-2
- https://ubuntu.com/security/notices/USN-7606-1
- https://ubuntu.com/security/notices/USN-7628-1
- https://www.cve.org/CVERecord?id=CVE-2025-21989