Re: [REGRESSION][BISECTED] erroneous buffer overflow detected in bch2_xattr_validate

[Jan Hendrik Farr <kernel@jfarr.cc>]

On 25 10:10:38, Miguel Ojeda wrote:
> On Fri, Oct 25, 2024 at 3:15 AM Nathan Chancellor <nathan@kernel.org> wrote:
> >
> > on the official submission.
> 
> Same -- please feel free to add:
> 
> Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
> 
> One nit below that is fine either way:
> 
> > > +# clang needs to be at least 19.1.3 to avoid __bdos miscalculations
> > > +# https://github.com/llvm/llvm-project/pull/110497
> > > +# https://github.com/llvm/llvm-project/pull/112636
> > > +# TODO: when gcc 15 is released remove the build test and add gcc version check
> 
> I would perhaps move these closer to the respective lines they are
> comment on (i.e. `depends on` and `def_bool`).
> 

Done, thanks!

config CC_HAS_COUNTED_BY
	# TODO: when gcc 15 is released remove the build test and add
	# a gcc version check
	def_bool $(success,echo 'struct flex { int count; int array[] __attribute__((__counted_by__(count))); };' | $(CC) $(CLANG_FLAGS) -x c - -c -o /dev/null -Werror)
	# clang needs to be at least 19.1.3 to avoid __bdos miscalculations
	# https://github.com/llvm/llvm-project/pull/110497
	# https://github.com/llvm/llvm-project/pull/112636
	depends on !(CC_IS_CLANG && CLANG_VERSION < 190103)