Re: Linux 6.2-rc1

[Guenter Roeck]

On Mon, Dec 26, 2022 at 01:03:59PM -0800, Kees Cook wrote:
> On December 26, 2022 12:56:29 PM PST, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:
> >On Mon, Dec 26, 2022 at 11:52 AM Guenter Roeck <linux@xxxxxxxxxxxx> wrote:
> >>
> >> fs/f2fs/inline.c: In function 'f2fs_move_inline_dirents':
> >> include/linux/fortify-string.h:59:33: error: '__builtin_memset' pointer overflow between offset [28, 898293814] and size [-898293787, -1] [-Werror=array-bounds]
> >> fs/f2fs/inline.c:430:9: note: in expansion of macro 'memset'
> >>   430 |         memset(dst.bitmap + src.nr_bitmap, 0, dst.nr_bitmap - src.nr_bitmap);
> >>       |         ^~~~~~
> >
> >Well, that's unfortunate.
> 
> I'll look into this.
> 

I did some more testing. The problem is seen with gcc 11.3.0, but not with
gcc 12.2.0 nor with gcc 10.3.0. gcc bug ? Should I switch to gcc 12.2.0 for
powerpc when build testing the latest kernel ?

Guenter