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IOMMU Fix for Linux v5.0-rc8

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One important patch:
 
 	- Fix for a memory corruption issue in the Intel VT-d driver
 	  that triggers on hardware with deep PCI hierarchies
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Merge tag 'iommu-fix-v5.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU fix from Joerg Roedel:
 "One important fix for a memory corruption issue in the Intel VT-d
  driver that triggers on hardware with deep PCI hierarchies"

* tag 'iommu-fix-v5.0-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/dmar: Fix buffer overflow during PCI bus notification
This commit is contained in:
Linus Torvalds 2019-03-01 09:13:04 -08:00
commit a215ce8f0e
1 changed files with 1 additions and 1 deletions
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2
drivers/iommu/dmar.c
View file

@ -144,7 +144,7 @@ dmar_alloc_pci_notify_info(struct pci_dev *dev, unsigned long event)
for (tmp = dev; tmp; tmp = tmp->bus->self)
level++;
size = sizeof(*info) + level * sizeof(struct acpi_dmar_pci_path);
size = sizeof(*info) + level * sizeof(info->path[0]);
if (size <= sizeof(dmar_pci_notify_info_buf)) {
info = (struct dmar_pci_notify_info *)dmar_pci_notify_info_buf;
} else {