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Message-ID: <ZSPx5OrMBm0O6wpL@ashyti-mobl2.lan> Date: Mon, 9 Oct 2023 14:28:20 +0200 From: Andi Shyti <andi.shyti@...ux.intel.com> To: Kees Cook <keescook@...omium.org> Cc: Jani Nikula <jani.nikula@...ux.intel.com>, Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>, Rodrigo Vivi <rodrigo.vivi@...el.com>, Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>, David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, "Gustavo A. R. Silva" <gustavoars@...nel.org>, John Harrison <John.C.Harrison@...el.com>, Matthew Brost <matthew.brost@...el.com>, Michal Wajdeczko <michal.wajdeczko@...el.com>, Matt Roper <matthew.d.roper@...el.com>, intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org, linux-hardening@...r.kernel.org, Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, Tom Rix <trix@...hat.com>, Andi Shyti <andi.shyti@...ux.intel.com>, Nirmoy Das <nirmoy.das@...el.com>, Jonathan Cavitt <jonathan.cavitt@...el.com>, Fei Yang <fei.yang@...el.com>, linux-kernel@...r.kernel.org, llvm@...ts.linux.dev Subject: Re: [PATCH] drm/i915/guc: Annotate struct ct_incoming_msg with __counted_by Hi Kees, On Fri, Oct 06, 2023 at 01:17:45PM -0700, Kees Cook wrote: > Prepare for the coming implementation by GCC and Clang of the __counted_by > attribute. Flexible array members annotated with __counted_by can have > their accesses bounds-checked at run-time via CONFIG_UBSAN_BOUNDS (for > array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family > functions). > > As found with Coccinelle[1], add __counted_by for struct ct_incoming_msg. > > Cc: Jani Nikula <jani.nikula@...ux.intel.com> > Cc: Joonas Lahtinen <joonas.lahtinen@...ux.intel.com> > Cc: Rodrigo Vivi <rodrigo.vivi@...el.com> > Cc: Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com> > Cc: David Airlie <airlied@...il.com> > Cc: Daniel Vetter <daniel@...ll.ch> > Cc: "Gustavo A. R. Silva" <gustavoars@...nel.org> > Cc: John Harrison <John.C.Harrison@...el.com> > Cc: Matthew Brost <matthew.brost@...el.com> > Cc: Michal Wajdeczko <michal.wajdeczko@...el.com> > Cc: Matt Roper <matthew.d.roper@...el.com> > Cc: intel-gfx@...ts.freedesktop.org > Cc: dri-devel@...ts.freedesktop.org > Cc: linux-hardening@...r.kernel.org > Link: https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci [1] > Signed-off-by: Kees Cook <keescook@...omium.org> merged in drm-intel-gt-next. Thanks, Andi
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