Instead of caching packet address pointer, store packet handle
in page fault req info structutre to obtain packet address through
mem manager to avoid potential access to dangling packet pointer which
resulted from UMD called to free the packet buffer before kernel finishes
handling page fault. If the packet was freed, then querying to get packet
address from memory manager will fail since the mem handle is invalid.
If it is invalid, the page fault handler will return before accessing
the dangling packet.
CRs-Fixed: 3287554
Change-Id: I02bc0c706b64f1dc0d098d8189f2f129a91efba7
Signed-off-by: Sokchetra Eung <quic_eung@quicinc.com>
56cc1d37bc