In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Fix hang/underflow when transitioning to ODM4:1
[Why]
Under some circumstances, disabling an OPTC and attempting to reclaim
its OPP(s) for a different OPTC could cause a hang/underflow due to OPPs
not being properly disconnected from the disabled OPTC.
[How]
Ensure that all OPPs are unassigned from an OPTC when it gets disabled.
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c",
"drivers/gpu/drm/amd/display/dc/optc/dcn35/dcn35_optc.c"
],
"versions": [
{
"version": "1da177e4c3f4",
"lessThan": "ae62f1dde66a",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f4",
"lessThan": "4b6b479b2da6",
"status": "affected",
"versionType": "git"
},
{
"version": "1da177e4c3f4",
"lessThan": "e7b2b108cdea",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/gpu/drm/amd/display/dc/optc/dcn32/dcn32_optc.c",
"drivers/gpu/drm/amd/display/dc/optc/dcn35/dcn35_optc.c"
],
"versions": [
{
"version": "6.6.24",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.7.3",
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.8",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]