Re: [Xen-devel] [PATCH] xen/x86/vpmu: Zero struct pt_regs before calling into sample handling code

2018-09-20 Thread Boris Ostrovsky
On 7/13/18 4:41 AM, Juergen Gross wrote: > On 12/07/18 19:27, Boris Ostrovsky wrote: >> Otherwise we may leak kernel stack for events that sample user >> registers. >> >> Reported-by: Mark Rutland >> Signed-off-by: Boris Ostrovsky >> Cc: sta...@vger.kernel.org > Reviewed-by: Juergen Gross >

Re: [Xen-devel] [PATCH] xen/x86/vpmu: Zero struct pt_regs before calling into sample handling code

2018-07-13 Thread Juergen Gross
On 12/07/18 19:27, Boris Ostrovsky wrote: > Otherwise we may leak kernel stack for events that sample user > registers. > > Reported-by: Mark Rutland > Signed-off-by: Boris Ostrovsky > Cc: sta...@vger.kernel.org Reviewed-by: Juergen Gross Juergen

[Xen-devel] [PATCH] xen/x86/vpmu: Zero struct pt_regs before calling into sample handling code

2018-07-12 Thread Boris Ostrovsky
Otherwise we may leak kernel stack for events that sample user registers. Reported-by: Mark Rutland Signed-off-by: Boris Ostrovsky Cc: sta...@vger.kernel.org --- arch/x86/xen/pmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/xen/pmu.c b/arch/x86/xen/pmu.c index