File 0040-pseries-Fix-array-overrun-bug-in-PCI-code.... of Package qemu

Overview Repositories Revisions Requests Users Attributes Meta

File 0040-pseries-Fix-array-overrun-bug-in-PCI-code.patch of Package qemu (Revision a49ce543369d74a5afee698a6eeeb5d2)

Currently displaying revision a49ce543369d74a5afee698a6eeeb5d2 , Show latest

From 632e46dfa29a19ba656a5580b610fda0003cf3b0 Mon Sep 17 00:00:00 2001
From: David Gibson <david@gibson.dropbear.id.au>
Date: Mon, 28 Nov 2011 20:21:39 +0000
Subject: [PATCH] pseries: Fix array overrun bug in PCI code

spapr_populate_pci_devices() containd a loop with PCI_NUM_REGIONS (7)
iterations.  However this overruns the 'bars' global array, which only has
6 elements. In fact we only want to run this loop for things listed in the
bars array, so this patch corrects the loop bounds to reflect that.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
(cherry picked from commit 135712de61dfa22368e98914d65b8b0860ec8505)
---
 hw/spapr_pci.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/hw/spapr_pci.c b/hw/spapr_pci.c
index 7162588..9b6a032 100644
--- a/hw/spapr_pci.c
+++ b/hw/spapr_pci.c
@@ -454,7 +454,7 @@ int spapr_populate_pci_devices(sPAPRPHBState *phb,
         reg[0].size = 0;
 
         n = 0;
-        for (i = 0; i < PCI_NUM_REGIONS; ++i) {
+        for (i = 0; i < ARRAY_SIZE(bars); ++i) {
             if (0 == dev->io_regions[i].size) {
                 continue;
             }
-- 
1.6.0.2

Places

File 0040-pseries-Fix-array-overrun-bug-in-PCI-code.patch of Package qemu (Revision a49ce543369d74a5afee698a6eeeb5d2)

Places