From dca4d60f5f8c9263f8f66724fa4750abd32d8db0 Mon Sep 17 00:00:00 2001 From: Eric Auger Date: Tue, 30 Apr 2019 09:30:04 +0200 Subject: [PATCH] iommu/vt-d: Fix leak in intel_pasid_alloc_table on error path If alloc_pages_node() fails, pasid_table is leaked. Free it. Fixes: cc580e41260db ("iommu/vt-d: Per PCI device pasid table interfaces") Signed-off-by: Eric Auger Signed-off-by: Joerg Roedel --- drivers/iommu/intel-pasid.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/intel-pasid.c b/drivers/iommu/intel-pasid.c index 03b12d2ee213..2fefeafda437 100644 --- a/drivers/iommu/intel-pasid.c +++ b/drivers/iommu/intel-pasid.c @@ -154,8 +154,10 @@ int intel_pasid_alloc_table(struct device *dev) order = size ? get_order(size) : 0; pages = alloc_pages_node(info->iommu->node, GFP_KERNEL | __GFP_ZERO, order); - if (!pages) + if (!pages) { + kfree(pasid_table); return -ENOMEM; + } pasid_table->table = page_address(pages); pasid_table->order = order;