On 07/03/2018 at 20:27:56 -0600, Gustavo A. R. Silva wrote: > In preparation to enabling -Wvla, remove VLA and replace it > with a fixed-length array instead. > > From a security viewpoint, the use of Variable Length Arrays can be > a vector for stack overflow attacks. Also, in general, as the code > evolves it is easy to lose track of how big a VLA can get. Thus, we > can end up having segfaults that are hard to debug. > > Also, fixed as part of the directive to remove all VLAs from > the kernel: https://lkml.org/lkml/2018/3/7/621 >
That is a good description, thanks > Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com> > --- > Changes in v2: > - Update changelog as per Alexandre Belloni request. > - Update the code for rtc-bq32k driver based on Alexandre's feedback. > > drivers/rtc/rtc-bq32k.c | 6 +++++- > drivers/rtc/rtc-mcp795.c | 2 +- > 2 files changed, 6 insertions(+), 2 deletions(-) > Applied. -- Alexandre Belloni, Bootlin (formerly Free Electrons) Embedded Linux and Kernel engineering https://bootlin.com
