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

pds_core: make wait_context part of q_info

Make the wait_context a full part of the q_info struct rather
than a stack variable that goes away after pdsc_adminq_post()
is done so that the context is still available after the wait
loop has given up.

There was a case where a slow development firmware caused
the adminq request to time out, but then later the FW finally
finished the request and sent the interrupt.  The handler tried
to complete_all() the completion context that had been created
on the stack in pdsc_adminq_post() but no longer existed.
This caused bad pointer usage, kernel crashes, and much wailing
and gnashing of teeth.

https://git.kernel.org/stable/c/1d7c4b2b0bbfb09b55b2dc0e2355d7936bf89381

https://git.kernel.org/stable/c/3f77c3dfffc7063428b100c4945ca2a7a8680380

https://git.kernel.org/stable/c/520f012fe75fb8efc9f16a57ef929a7a2115d892

https://git.kernel.org/stable/c/66d7702b42ffdf0dce4808626088268a4e905ca6