Re: [RFC PATCH v2 10/21] arm64: Add CFI error handling
From: Sami Tolvanen <samitolvanen@google.com>
Date: 2022-05-16 16:25:31
Also in:
linux-hardening, lkml, llvm
On Sat, May 14, 2022 at 2:51 PM Kees Cook [off-list ref] wrote:
On Fri, May 13, 2022 at 01:21:48PM -0700, Sami Tolvanen wrote:quoted
With -fsanitize=kcfi, CFI always traps. Add arm64 support for handling CFI failures. The registers containing the target address and the expected type are encoded in the first ten bits of the ESR as follows: - 0-4: n, where the register Xn contains the target address - 5-9: m, where the register Wm contains the type hash Suggested-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Sami Tolvanen <samitolvanen@google.com>It might be nice just to include an example exception Oops in this commit log.
Agreed, I'll add an example. Sami _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel