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Message-ID: <ZShNfcI7dnZwyLhM@x130> Date: Thu, 12 Oct 2023 12:48:13 -0700 From: Saeed Mahameed <saeed@...nel.org> To: Kees Cook <keescook@...omium.org> Cc: Saeed Mahameed <saeedm@...dia.com>, Leon Romanovsky <leon@...nel.org>, "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, netdev@...r.kernel.org, linux-rdma@...r.kernel.org, "Gustavo A. R. Silva" <gustavoars@...nel.org>, Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, Tom Rix <trix@...hat.com>, linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org, llvm@...ts.linux.dev Subject: Re: [PATCH] net/mlx5: Annotate struct mlx5_fc_bulk with __counted_by On 03 Oct 16:17, 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 mlx5_fc_bulk. > >Cc: Saeed Mahameed <saeedm@...dia.com> >Cc: Leon Romanovsky <leon@...nel.org> >Cc: "David S. Miller" <davem@...emloft.net> >Cc: Eric Dumazet <edumazet@...gle.com> >Cc: Jakub Kicinski <kuba@...nel.org> >Cc: Paolo Abeni <pabeni@...hat.com> >Cc: netdev@...r.kernel.org >Cc: linux-rdma@...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> Applied to net-next-mlx5.
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