[RESEND][PATCH] iommu/vt-d: fix shift-out-of-bounds in bug checking

2018-04-27 Thread changbin . du
From: Changbin Du It allows to flush more than 4GB of device TLBs. So the mask should be 64bit wide. UBSAN captured this fault as below. [3.760024] [3.768440] UBSAN: Undefined behaviour in drivers/iommu

[PATCH] iommu/vt-d: fix shift-out-of-bounds in bug checking

2018-04-20 Thread changbin . du
From: Changbin Du It allows to flush more than 4GB of device TLBs. So the mask should be 64bit wide. UBSAN captured this fault as below. [3.760024] [3.768440] UBSAN: Undefined behaviour in drivers/iommu