Re: [BUG][PATCH] crypto: arm64: Avoid indirect branch to bti_c
From: Mark Brown
Date: Tue Oct 06 2020 - 06:36:16 EST
On Mon, Oct 05, 2020 at 10:48:54PM -0500, Jeremy Linton wrote:
> The AES code uses a 'br x7' as part of a function called by
> a macro. That branch needs a bti_j as a target. This results
> in a panic as seen below. Instead of trying to replace the branch
> target with a bti_jc, lets replace the indirect branch with a
> bl/ret, bl sequence that can target the existing bti_c.
Reviewed-by: Mark Brown <broonie@xxxxxxxxxx>
Attachment:
signature.asc
Description: PGP signature