From: Andrei Dulea via iommu <iommu@lists.linux-foundation.org>
To: Joerg Roedel <joro@8bytes.org>
Cc: iommu@lists.linux-foundation.org,
"Jan H. Schönherr" <jschoenh@amazon.de>,
"Andrei Dulea" <adulea@amazon.de>
Subject: [PATCH 1/4] iommu/amd: Fix pages leak in free_pagetable()
Date: Fri, 13 Sep 2019 16:42:28 +0200 [thread overview]
Message-ID: <20190913144231.21382-2-adulea@amazon.de> (raw)
In-Reply-To: <20190913144231.21382-1-adulea@amazon.de>
Take into account the gathered freelist in free_sub_pt(), otherwise we
end up leaking all that pages.
Fixes: 409afa44f9ba ("iommu/amd: Introduce free_sub_pt() function")
Signed-off-by: Andrei Dulea <adulea@amazon.de>
---
drivers/iommu/amd_iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 1ed3b98324ba..138547446345 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -1425,7 +1425,7 @@ static void free_pagetable(struct protection_domain *domain)
BUG_ON(domain->mode < PAGE_MODE_NONE ||
domain->mode > PAGE_MODE_6_LEVEL);
- free_sub_pt(root, domain->mode, freelist);
+ freelist = free_sub_pt(root, domain->mode, freelist);
free_page_list(freelist);
}
--
2.17.1
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next prev parent reply other threads:[~2019-09-13 15:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-13 14:42 [PATCH 0/4] iommu/amd: re-mapping fixes Andrei Dulea via iommu
2019-09-13 14:42 ` Andrei Dulea via iommu [this message]
2019-09-24 9:21 ` [PATCH 1/4] iommu/amd: Fix pages leak in free_pagetable() Joerg Roedel
2019-09-13 14:42 ` [PATCH 2/4] iommu/amd: Fix downgrading default page-sizes in alloc_pte() Andrei Dulea via iommu
2019-09-13 14:42 ` [PATCH 3/4] iommu/amd: Introduce first_pte_l7() helper Andrei Dulea via iommu
2019-09-13 14:42 ` [PATCH 4/4] iommu/amd: Unmap all L7 PTEs when downgrading page-sizes Andrei Dulea via iommu
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