PT-2026-44339 · Linux · Linux
Published
2026-05-28
·
Updated
2026-05-28
·
CVE-2026-46216
None
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In the Linux kernel, the following vulnerability has been resolved:
drm/xe/hdcp: Add NULL check for media gt in intel hdcp gsc check status()
When media GT is disabled via configfs, there is no allocation for
media gt, which is kept as NULL. In such scenario,
intel hdcp gsc check status() results in a kernel pagefault error due to
>->uc.gsc being evaluated as an invalid memory address.
Fix that by introducing a NULL check on media gt and bailing out early
if so.
While at it, also drop the NULL check for gsc, since it can't be NULL if
media gt is not NULL.
v2:
- Get address for gsc only after checking that gt is not NULL. (Shuicheng)
- Drop the NULL check for gsc. (Shuicheng) v3:
- Add "Fixes" and "Cc: <stable...>" tags. (Matt)
(cherry picked from commit bfaf87e84ca3ca3f6e275f9ae56da47a8b55ffd1)
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Related Identifiers
Affected Products
Linux