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authorAlex Waterman <alexw@nvidia.com>2017-12-29 19:51:10 -0500
committermobile promotions <svcmobile_promotions@nvidia.com>2018-01-25 17:25:25 -0500
commita373843d072f53ad72c510826d289a0d3b9062e4 (patch)
tree0d35c4174bc2a86fcc5fbae45d0cb16954ecdf7f /.gitignore
parent25aba34bbddc0080c8e12846596d07d09f186159 (diff)
gpu: nvgpu: add speculative load barrier (VM ioctls)
Data can be speculatively loaded from memory and stay in cache even when bound check fails. This can lead to unintended information disclosure via side-channel analysis. To mitigate this problem insert a speculation barrier. bug 2039126 CVE-2017-5753 Change-Id: Idf09b8d64dbdc2b0e4b504d4d7ea0197d38157d3 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1640499 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: Richard Zhao <rizhao@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
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