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* [PATCH] MdeModulePkg/NonDiscoverablePciDeviceDxe: Add NULL pointer check
@ 2020-09-11 17:16 Jeff Brasen
  2020-09-15  1:47 ` Wu, Hao A
  0 siblings, 1 reply; 3+ messages in thread
From: Jeff Brasen @ 2020-09-11 17:16 UTC (permalink / raw)
  To: devel; +Cc: hao.a.wu, ray.ni, Jeff Brasen

Add check for NULL HostAddress in AllocateBuffer as required by UEFI
specification.

Signed-off-by: Jeff Brasen <jbrasen@nvidia.com>
---
 .../NonDiscoverablePciDeviceDxe/NonDiscoverablePciDeviceIo.c  | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/MdeModulePkg/Bus/Pci/NonDiscoverablePciDeviceDxe/NonDiscoverablePciDeviceIo.c b/MdeModulePkg/Bus/Pci/NonDiscoverablePciDeviceDxe/NonDiscoverablePciDeviceIo.c
index a40c1a9593..363c4a765b 100644
--- a/MdeModulePkg/Bus/Pci/NonDiscoverablePciDeviceDxe/NonDiscoverablePciDeviceIo.c
+++ b/MdeModulePkg/Bus/Pci/NonDiscoverablePciDeviceDxe/NonDiscoverablePciDeviceIo.c
@@ -856,6 +856,10 @@ CoherentPciIoAllocateBuffer (
     return EFI_UNSUPPORTED;
   }
 
+  if (HostAddress == NULL) {
+    return EFI_INVALID_PARAMETER;
+  }
+
   if ((MemoryType != EfiBootServicesData) &&
       (MemoryType != EfiRuntimeServicesData)) {
     return EFI_INVALID_PARAMETER;
-- 
2.25.1


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2020-09-18  2:47 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2020-09-11 17:16 [PATCH] MdeModulePkg/NonDiscoverablePciDeviceDxe: Add NULL pointer check Jeff Brasen
2020-09-15  1:47 ` Wu, Hao A
2020-09-18  2:47   ` [edk2-devel] " Wu, Hao A

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