Re: [PATCH] staging: android: ion: Zero CMA allocated memory

2018-01-22 Thread Liam Mark
On Sat, 20 Jan 2018, Greg KH wrote: > On Fri, Jan 19, 2018 at 11:16:47AM -0800, Liam Mark wrote: > > Since the CMA API is now used directly the allocated memory is no longer > > automatically zeroed. > > > > Explicitly zero CMA allocated memory to ensure that no data is exposed > > to userspace.

Re: [PATCH] staging: android: ion: Zero CMA allocated memory

2018-01-22 Thread Liam Mark
On Fri, 19 Jan 2018, Dan Carpenter wrote: > On Fri, Jan 19, 2018 at 11:16:47AM -0800, Liam Mark wrote: > > Since the CMA API is now used directly the allocated memory is no longer > > automatically zeroed. > > > > Explicitly zero CMA allocated memory to ensure that no data is exposed > > to users

Re: [PATCH] staging: android: ion: Zero CMA allocated memory

2018-01-20 Thread Greg KH
On Fri, Jan 19, 2018 at 11:16:47AM -0800, Liam Mark wrote: > Since the CMA API is now used directly the allocated memory is no longer > automatically zeroed. > > Explicitly zero CMA allocated memory to ensure that no data is exposed > to userspace. How far back does this patch need to be ported?

Re: [PATCH] staging: android: ion: Zero CMA allocated memory

2018-01-19 Thread Dan Carpenter
On Fri, Jan 19, 2018 at 11:16:47AM -0800, Liam Mark wrote: > Since the CMA API is now used directly the allocated memory is no longer > automatically zeroed. > > Explicitly zero CMA allocated memory to ensure that no data is exposed > to userspace. > > Change-Id: I08e143707a0d31610821a7f16826c262