11 Oct
2020
11 Oct
'20
7:22 p.m.
From: TF-A tf-a-bounces@lists.trustedfirmware.org on behalf of Ash Wilding via TF-A TF-A@lists.trustedfirmware.org Date: Sunday, 11 October 2020 at 18:53
<...>
It looks like we do have an errant null pointer dereference here.
<...>
Just to clarify, when I say "null pointer dereference":
- you may be trampling over your stack, causing you to pop 0x0 into LR and return there;
- you may be trampling over your stack, causing you to pop 0x0 into a GPR that is then BLR'd to;
- you may be trampling over some other region of memory containing a function pointer, causing you to load 0x0 into a GPR that is then BLR'd to;
- etc.
Cheers, Ash.