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| author | Kees Cook <keescook@chromium.org> | 2023-08-18 01:58:56 +0200 |
|---|---|---|
| committer | Vinod Koul <vkoul@kernel.org> | 2023-09-28 13:12:15 +0200 |
| commit | 5a67a8f93f02027e4ac8583715d2f4bd2de20e10 (patch) | |
| tree | 9f329f57e15e79ad3292fa4b3eeeba424f4243df /kernel/cpu.c | |
| parent | dmaengine: ti: omap-dma: Annotate struct omap_desc with __counted_by (diff) | |
| download | linux-5a67a8f93f02027e4ac8583715d2f4bd2de20e10.tar.xz linux-5a67a8f93f02027e4ac8583715d2f4bd2de20e10.zip | |
dmaengine: uniphier-xdmac: Annotate struct uniphier_xdmac_desc with __counted_by
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 uniphier_xdmac_desc.
Additionally, since the element count member must be set before accessing
the annotated flexible array member, move its initialization earlier.
[1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci
Cc: Vinod Koul <vkoul@kernel.org>
Cc: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: dmaengine@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: "Gustavo A. R. Silva" <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230817235859.49846-19-keescook@chromium.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'kernel/cpu.c')
0 files changed, 0 insertions, 0 deletions