diff options
| author | Marc Zyngier <maz@kernel.org> | 2020-04-01 12:25:05 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2020-04-17 09:51:45 +0100 |
| commit | 2890ac993daa7bdcc57a92da2f07bcdec243666b (patch) | |
| tree | 3de85579ff6aec6ef51dc586435aa9bb2febc0db /security/yama | |
| parent | 8f3d9f354286745c751374f5f1fcafee6b3f3136 (diff) | |
KVM: arm64: PSCI: Narrow input registers when using 32bit functions
When a guest delibarately uses an SMC32 function number (which is allowed),
we should make sure we drop the top 32bits from the input arguments, as they
could legitimately be junk.
Reported-by: Christoffer Dall <christoffer.dall@arm.com>
Reviewed-by: Christoffer Dall <christoffer.dall@arm.com>
Reviewed-by: Alexandru Elisei <alexandru.elisei@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'security/yama')
0 files changed, 0 insertions, 0 deletions