Re: incoming

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On Thu, Sep 09, 2021 at 08:09:48PM -0700, Andrew Morton wrote:
> 
> More post linux-next material.
> 
> 9 patches, based on f154c806676ad7153c6e161f30c53a44855329d6.
> 
> Subsystems affected by this patch series:
> 
>   mm/slab-generic
>   rapidio
>   mm/debug
> 
> Subsystem: mm/slab-generic
> 
>     "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>:
>       mm: move kvmalloc-related functions to slab.h
> 
> Subsystem: rapidio
> 
>     Kees Cook <keescook@xxxxxxxxxxxx>:
>       rapidio: avoid bogus __alloc_size warning
> 
> Subsystem: mm/debug
> 
>     Kees Cook <keescook@xxxxxxxxxxxx>:
>     Patch series "Add __alloc_size() for better bounds checking", v2:
>       Compiler Attributes: add __alloc_size() for better bounds checking
>       checkpatch: add __alloc_size() to known $Attribute
>       slab: clean up function declarations
>       slab: add __alloc_size attributes for better bounds checking
>       mm/page_alloc: add __alloc_size attributes for better bounds checking
>       percpu: add __alloc_size attributes for better bounds checking
>       mm/vmalloc: add __alloc_size attributes for better bounds checking

Hi,

FYI, in overnight build testing I found yet another corner case in
GCC's handling of the __alloc_size attribute. It's the gift that keeps
on giving. The fix is here:

https://lore.kernel.org/lkml/20210910165851.3296624-1-keescook@xxxxxxxxxxxx/

> 
>  Makefile                                 |   15 +++
>  drivers/of/kexec.c                       |    1 
>  drivers/rapidio/devices/rio_mport_cdev.c |    9 +-
>  include/linux/compiler_attributes.h      |    6 +
>  include/linux/gfp.h                      |    2 
>  include/linux/mm.h                       |   34 --------
>  include/linux/percpu.h                   |    3 
>  include/linux/slab.h                     |  122 ++++++++++++++++++++++---------
>  include/linux/vmalloc.h                  |   11 ++
>  scripts/checkpatch.pl                    |    3 
>  10 files changed, 132 insertions(+), 74 deletions(-)
> 

-- 
Kees Cook




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