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* [Qemu-devel] [PATCH v2] pcihp: fix possible array out of bounds
@ 2014-08-20  5:52 arei.gonglei
  2014-08-20  6:05 ` Marcel Apfelbaum
  2014-08-20 19:46 ` Michael S. Tsirkin
  0 siblings, 2 replies; 3+ messages in thread
From: arei.gonglei @ 2014-08-20  5:52 UTC (permalink / raw)
  To: qemu-devel; +Cc: peter.crosthwaite, marcel.a, weidong.huang, Gonglei, mst

From: Gonglei <arei.gonglei@huawei.com>

Prevent out-of-bounds array access on
acpi_pcihp_pci_status.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
---
v2: 
 - change commit message.
 - add 'Reviewed-by'
---
 hw/acpi/pcihp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/acpi/pcihp.c b/hw/acpi/pcihp.c
index fae663a..34dedf1 100644
--- a/hw/acpi/pcihp.c
+++ b/hw/acpi/pcihp.c
@@ -231,7 +231,7 @@ static uint64_t pci_read(void *opaque, hwaddr addr, unsigned int size)
     uint32_t val = 0;
     int bsel = s->hotplug_select;
 
-    if (bsel < 0 || bsel > ACPI_PCIHP_MAX_HOTPLUG_BUS) {
+    if (bsel < 0 || bsel >= ACPI_PCIHP_MAX_HOTPLUG_BUS) {
         return 0;
     }
 
-- 
1.7.12.4

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

end of thread, other threads:[~2014-08-20 19:46 UTC | newest]

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2014-08-20  5:52 [Qemu-devel] [PATCH v2] pcihp: fix possible array out of bounds arei.gonglei
2014-08-20  6:05 ` Marcel Apfelbaum
2014-08-20 19:46 ` Michael S. Tsirkin

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