Re: [PATCH 2/4] ipc/shm.c: check for overflows of shm_tot

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On Mon, 2014-04-21 at 16:26 +0200, Manfred Spraul wrote:
> shm_tot counts the total number of pages used by shm segments.
> 
> If SHMALL is ULONG_MAX (or nearly ULONG_MAX), then the number
> can overflow.  Subsequent calls to shmctl(,SHM_INFO,) would return
> wrong values for shm_tot.
> 
> The patch adds a detection for overflows.
> 
> Signed-off-by: Manfred Spraul <manfred@xxxxxxxxxxxxxxxx>

Acked-by: Davidlohr Bueso <davidlohr@xxxxxx>

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