From: Kees Cook <kees@kernel.org>
To: Joseph Myers <josmyers@redhat.com>
Cc: Richard Biener <rguenther@suse.de>,
Martin Uecker <uecker@tugraz.at>,
gcc-patches@gcc.gnu.org, linux-hardening@vger.kernel.org
Subject: Re: [PATCH v2] c: handle .ACCESS_WITH_SIZE in build_unary_op for !/+/- [PR125604]
Date: Thu, 18 Jun 2026 13:29:24 -0700 [thread overview]
Message-ID: <202606181328.ABB25F969C@keescook> (raw)
In-Reply-To: <20260618195646.it.067-kees@kernel.org>
On Thu, Jun 18, 2026 at 12:56:51PM -0700, Kees Cook wrote:
> Unwrap the .ACCESS_WITH_SIZE call at the top of build_unary_op via
> get_ref_from_access_with_size. These unary operators consume the
> pointer rvalue rather than the pointed-to data, so the bounds-checking
> wrapper is not load-bearing here. The assertion is retained: after
> the unwrap it documents the post-condition the rest of the function
> relies on.
BTW, I don't have commit access, so if this patch looks good, I still
need someone to commit for me. :)
--
Kees Cook
prev parent reply other threads:[~2026-06-18 20:29 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-18 19:56 [PATCH v2] c: handle .ACCESS_WITH_SIZE in build_unary_op for !/+/- [PR125604] Kees Cook
2026-06-18 20:29 ` Kees Cook [this message]
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