CVE-2022-48893 Information

Description

In the Linux kernel the following vulnerability has been resolved:

drm/i915/gt: Cleanup partial engine discovery failures

If we abort driver initialisation in the middle of gt/engine discovery some engines will be fully setup and some not. Those incompletely setup engines only have ’engine->release == NULL’ and so will leak any of the common objects allocated.

v2:

• Drop the destroy_pinned_context() helper for now. It’s not really worth it with just a single callsite at the moment. (Janusz)

Reference

https://git.kernel.org/stable/c/5c855bcc730656c4b7d30aaddcd0eafc7003e112 https://git.kernel.org/stable/c/78a033433a5ae4fee85511ee075bc9a48312c79e