Messages in this thread | | | From | Jason Andryuk <> | Date | Wed, 11 Oct 2023 09:22:29 -0400 | Subject | Re: [PATCH][next] xen/xenbus: Add __counted_by for struct read_buffer and use struct_size() |
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On Mon, Oct 9, 2023 at 2:55 PM Gustavo A. R. Silva <gustavoars@kernel.org> 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). > > While there, use struct_size() helper, instead of the open-coded > version, to calculate the size for the allocation of the whole > flexible structure, including of course, the flexible-array member. > > This code was found with the help of Coccinelle, and audited and > fixed manually. > > Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Jason Andryuk <jandryuk@gmail.com>
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