From: Greg KH on
2.6.32-stable review patch. If anyone has any objections, please let us know.


From: Joerg Roedel <joerg.roedel(a)>

commit 8b408fe4f853dcfa18d133aa4cf1d7546b4c3870 upstream.

In the amd_iommu_domain_destroy the protection_domain_free
function is partly reimplemented. The 'partly' is the bug
here because the domain is not deleted from the domain list.
This results in use-after-free errors and data-corruption.
Fix it by just using protection_domain_free instead.

Signed-off-by: Joerg Roedel <joerg.roedel(a)>
Signed-off-by: Greg Kroah-Hartman <gregkh(a)>

arch/x86/kernel/amd_iommu.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)

--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -2239,9 +2239,7 @@ static void amd_iommu_domain_destroy(str


- domain_id_free(domain->id);
- kfree(domain);
+ protection_domain_free(domain);

dom->priv = NULL;

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