In the Linux kernel, the following vulnerability has been resolved:
drm/nouveau: don’t attempt to schedule hpd_work on headless cards
If the card doesn’t have display hardware, hpd_work and hpd_lock are
left uninitialized which causes BUG when attempting to schedule hpd_work
on runtime PM resume.
Fix it by adding headless flag to DRM and skip any hpd if it’s set.
[
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/gpu/drm/nouveau/dispnv04/disp.c",
"drivers/gpu/drm/nouveau/dispnv50/disp.c",
"drivers/gpu/drm/nouveau/nouveau_display.c",
"drivers/gpu/drm/nouveau/nouveau_drv.h"
],
"versions": [
{
"version": "ae1aadb1eb8d",
"lessThan": "227349998e57",
"status": "affected",
"versionType": "git"
},
{
"version": "ae1aadb1eb8d",
"lessThan": "b96a225377b6",
"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/nouveau/dispnv04/disp.c",
"drivers/gpu/drm/nouveau/dispnv50/disp.c",
"drivers/gpu/drm/nouveau/nouveau_display.c",
"drivers/gpu/drm/nouveau/nouveau_drv.h"
],
"versions": [
{
"version": "6.7",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.7",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.9.6",
"lessThanOrEqual": "6.9.*",
"status": "unaffected",
"versionType": "custom"
},
{
"version": "6.10",
"lessThanOrEqual": "*",
"status": "unaffected",
"versionType": "original_commit_for_fix"
}
]
}
]