On Fri, Sep 22, 2023 at 1:33 PM Kees Cook <[email protected]> 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 ip_hw_instance. > > [1] > https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci > > Cc: Alex Deucher <[email protected]> > Cc: "Christian König" <[email protected]> > Cc: "Pan, Xinhui" <[email protected]> > Cc: David Airlie <[email protected]> > Cc: Daniel Vetter <[email protected]> > Cc: Hawking Zhang <[email protected]> > Cc: [email protected] > Cc: [email protected] > Signed-off-by: Kees Cook <[email protected]>
Acked-by: Alex Deucher <[email protected]> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c > b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c > index d1bc7b212520..be4c97a3d7bf 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c > @@ -662,7 +662,7 @@ struct ip_hw_instance { > u8 harvest; > > int num_base_addresses; > - u32 base_addr[]; > + u32 base_addr[] __counted_by(num_base_addresses); > }; > > struct ip_hw_id { > -- > 2.34.1 > _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
