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(parent: 9c01a49) | patch
iommu/vt-d: Fix mm reference leak
authorJacob Pan <jacob.jun.pan@linux.intel.com>
Fri, 20 Mar 2020 04:32:30 +0000 (21:32 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 23 Apr 2020 08:36:40 +0000 (10:36 +0200)
commit900cd0f6c688bfd87648bbca02f5bf34ef5a5af2
tree645b7c4adbb53113c657d6152e06715ef685654dtree | snapshot
parent9c01a49a7117fa824ee0703c9f46b2fa54dfd94dcommit | diff
iommu/vt-d: Fix mm reference leak

[ Upstream commit 902baf61adf6b187f0a6b789e70d788ea71ff5bc ]

Move canonical address check before mmget_not_zero() to avoid mm
reference leak.

Fixes: 9d8c3af31607 ("iommu/vt-d: IOMMU Page Request needs to check if address is canonical.")
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/iommu/intel-svm.c diff | blob | history
Domain: System / Kernel;