From ec333318b748e4f4ac3679a197620503b6d19d20 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Fri, 9 Mar 2007 10:41:04 +0100 Subject: SPARC64: Fix memory corruption in pci_4u_free_consistent() The second argument to free_npages() was being incorrectly calculated, which would thus access far past the end of the arena->map[] bitmap. Signed-off-by: David S. Miller Signed-off-by: Adrian Bunk --- arch/sparc64/kernel/pci_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/sparc64') diff --git a/arch/sparc64/kernel/pci_iommu.c b/arch/sparc64/kernel/pci_iommu.c index f63f0653dd0e..df9a3648dbc9 100644 --- a/arch/sparc64/kernel/pci_iommu.c +++ b/arch/sparc64/kernel/pci_iommu.c @@ -282,7 +282,7 @@ void pci_free_consistent(struct pci_dev *pdev, size_t size, void *cpu, dma_addr_ spin_lock_irqsave(&iommu->lock, flags); - free_npages(iommu, dvma, npages); + free_npages(iommu, dvma - iommu->page_table_map_base, npages); spin_unlock_irqrestore(&iommu->lock, flags); -- cgit v1.2.3