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| author | Alex Waterman <alexw@nvidia.com> | 2017-12-29 17:54:14 -0500 |
|---|---|---|
| committer | mobile promotions <svcmobile_promotions@nvidia.com> | 2018-01-25 17:25:21 -0500 |
| commit | 25aba34bbddc0080c8e12846596d07d09f186159 (patch) | |
| tree | 5a27232f0c1105c02adb0bca7667a9550b9bb8df /drivers/gpu/nvgpu/perf | |
| parent | 43dbbaaad7b49036a507b7e04af67b766adc41be (diff) | |
gpu: nvgpu: add speculative load barrier (channel 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: I6b8af794ea2156f0342ea6cc925051f49dbb1d6e
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1640498
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>
Diffstat (limited to 'drivers/gpu/nvgpu/perf')
0 files changed, 0 insertions, 0 deletions