[SRU][J][PATCH 0/1] CVE-2024-53051

[Bethany Jamison]

[Impact]

Sometimes in drm/i915/hdcp during a hotplug scenario or suspend/resume
scenario the encoder is not initialized. This can lead to a kernel null
pointer dereference. To fix this vulnerability a check is added to
intel_hdcp_get_capability to verify that the encoder has been
initialized and is accessible.

[Fix]

Jammy:  Clean cherry-pick from fix commit
Focal:  submitted to esm ML

[Test Case]

compile tested

[Where problems could occur]

This fix affects those who use the Intel i915 HD graphics driver, an
issue with this fix would be visible to the user via unexpected system
behavior or a crash.

Suraj Kandpal (1):
  drm/i915/hdcp: Add encoder check in intel_hdcp_get_capability

 drivers/gpu/drm/i915/display/intel_hdcp.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--
2.43.0