Re: [PATCH] ipc: initialize structure memory to zero for shmctl

[Al Viro]

On Wed, Oct 06, 2010 at 05:10:31PM -0700, Kees Cook wrote:
> The old shm interface will leak a few bytes of stack contents. Explicitly
> initialize the structure to zero-fill the untouched fields.

Umm...  I wonder if we ever have gaps in there; note that gaps between
the fields are _not_ initialized in compound literals.  Yes, I realize
that it's a separate problem, but explicit memset() prior to initializations
of fields might be a better solution, covering both.
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