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Message-ID: <bf7a99b4-4679-4c99-b2c2-4aa17abaf0e0@linux.ibm.com> Date: Thu, 5 Oct 2023 17:41:09 +0200 From: Peter Oberparleiter <oberpar@...ux.ibm.com> To: Kees Cook <keescook@...omium.org>, Andrew Morton <akpm@...ux-foundation.org> Cc: Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, Tom Rix <trix@...hat.com>, linux-kernel@...r.kernel.org, llvm@...ts.linux.dev, linux-hardening@...r.kernel.org Subject: Re: [PATCH] gcov: Annotate struct gcov_iterator with __counted_by On 22.09.2023 19:52, 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 checking 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 gcov_iterator. > > [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci > > Cc: Peter Oberparleiter <oberpar@...ux.ibm.com> > Signed-off-by: Kees Cook <keescook@...omium.org> Looks good to me! Reviewed-by: Peter Oberparleiter <oberpar@...ux.ibm.com> Andrew, could you add this patch via your tree? -- Peter Oberparleiter Linux on IBM Z Development - IBM Germany R&D
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