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(parent: b73a161) | patch
xen/x86/vpmu: Zero struct pt_regs before calling into sample handling code
authorBoris Ostrovsky <boris.ostrovsky@oracle.com>
Thu, 12 Jul 2018 17:27:00 +0000 (13:27 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 29 Sep 2018 09:55:56 +0000 (02:55 -0700)
commit1318b2c26b783f94045678c5056720a86b20a418
tree2d130e5e8e3ab77c8632674e2cbd9b0b24bc6242tree | snapshot
parentb73a161e9beff24bf1803ba393dff95a255268f9commit | diff
xen/x86/vpmu: Zero struct pt_regs before calling into sample handling code

commit 70513d58751d7c6c1a0133557b13089b9f2e3e66 upstream.

Otherwise we may leak kernel stack for events that sample user
registers.

Reported-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/x86/xen/pmu.c diff | blob | history
kernel
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