On 9/22/23 11:32, 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 smu10_voltage_dependency_table. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Evan Quan <evan.q...@amd.com> Cc: Alex Deucher <alexander.deuc...@amd.com> Cc: "Christian König" <christian.koe...@amd.com> Cc: "Pan, Xinhui" <xinhui....@amd.com> Cc: David Airlie <airl...@gmail.com> Cc: Daniel Vetter <dan...@ffwll.ch> Cc: Xiaojian Du <xiaojian...@amd.com> Cc: Huang Rui <ray.hu...@amd.com> Cc: Kevin Wang <kevin1.w...@amd.com> Cc: amd-...@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Kees Cook <keesc...@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavo...@kernel.org> Thanks -- Gustavo
--- drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h index 808e0ecbe1f0..42adc2a3dcbc 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.h @@ -192,7 +192,7 @@ struct smu10_clock_voltage_dependency_record {struct smu10_voltage_dependency_table {uint32_t count; - struct smu10_clock_voltage_dependency_record entries[]; + struct smu10_clock_voltage_dependency_record entries[] __counted_by(count); };struct smu10_clock_voltage_information {
