In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Fix system hang while resume with TBT monitor

[Why]
Connected with a Thunderbolt monitor and do the suspend and the system
may hang while resume.

The TBT monitor HPD will be triggered during the resume procedure
and call the drm_client_modeset_probe() while
struct drm_connector connector->dev->master is NULL.

It will mess up the pipe topology after resume.

[How]
Skip the TBT monitor HPD during the resume procedure because we
currently will probe the connectors after resume by default.

(cherry picked from commit 453f86a26945207a16b8f66aaed5962dc2b95b85)

kernel.org https://git.kernel.org/stable/c/52d4e3fb3d340447dcdac0e14ff21a764f326907 [No types assigned]

kernel.org https://git.kernel.org/stable/c/68d603f467a75618eeae5bfe8af32cda47097010 [No types assigned]

kernel.org https://git.kernel.org/stable/c/722d2d8fc423108597b97efbf165187d16d9aa1e [No types assigned]

kernel.org https://git.kernel.org/stable/c/73e441be033d3ed0bdff09b575da3e7d4606ffc9 [No types assigned]

kernel.org https://git.kernel.org/stable/c/c2356296f546326f9f06c109e201d42201e1e783 [No types assigned]

kernel.org https://git.kernel.org/stable/c/eb9329cd882aa274e92bdb1003bc088433fdee86 [No types assigned]