[PATCH] arm64/crc-t10dif: fix use of out-of-scope array in crc_t10dif_arch()

Eric Biggers ebiggers at kernel.org
Thu Mar 27 09:41:06 PDT 2025


On Thu, Mar 27, 2025 at 07:58:51AM +0000, David Binderman wrote:
> Hello there Eric,
> 
> >Fix a silly bug where an array was used outside of its scope.
> 
> I am surprised your C compiler doesn't find this bug.
> gcc 14.2 onwards should be able to, but clang not.
> 
> I will make an enhancement request in clang.
> 
> Regards
> 
> David Binderman
> 

Neither gcc 14.2.0 nor clang 19.1.7 found it, unfortunately.  And the code still
passed crc_kunit (even when run with have_pmull disabled so that the code is
reached).

- Eric



More information about the linux-arm-kernel mailing list