In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: fix missing .istwopixelspercontainer
Starting from 6.11, AMDGPU driver, while being loaded with amdgpu.dc=1, due to lack of .istwopixelspercontainer function in dce60tgfuncs, causes a NULL pointer dereference on PCs with old GPUs, such as R9 280X.
So this fix adds missing .istwopixelspercontainer to dce60tgfuncs.
(cherry picked from commit bd4b125eb949785c6f8a53b0494e32795421209d)
[
{
"id": "CVE-2025-21989-543d9617",
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"285098649495747824590258849943386576285",
"253183857683070069307064947786466512929",
"166675021605710511551616939015340742541",
"259902049953551171129380993716117546719"
]
},
"deprecated": false,
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@36d04c9313d8d83ead92242f037099ac73e02120",
"target": {
"file": "drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c"
}
},
{
"id": "CVE-2025-21989-586ecdb8",
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"285098649495747824590258849943386576285",
"253183857683070069307064947786466512929",
"166675021605710511551616939015340742541",
"259902049953551171129380993716117546719"
]
},
"deprecated": false,
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e204aab79e01bc8ff750645666993ed8b719de57",
"target": {
"file": "drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c"
}
},
{
"id": "CVE-2025-21989-79d0bb30",
"signature_version": "v1",
"digest": {
"threshold": 0.9,
"line_hashes": [
"285098649495747824590258849943386576285",
"253183857683070069307064947786466512929",
"166675021605710511551616939015340742541",
"259902049953551171129380993716117546719"
]
},
"deprecated": false,
"signature_type": "Line",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@fefa811e616b5d0b555ed65743e528a0a8a0b377",
"target": {
"file": "drivers/gpu/drm/amd/display/dc/dce60/dce60_timing_generator.c"
}
}
]