qemu/0111-qapi-Fix-potential-NULL-pointer-segfault.patch

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2012-10-28 18:05:07 +00:00
From d01c76a8d9d0d80ba00a407103e7b79112a21fce Mon Sep 17 00:00:00 2001
From: Stefan Weil <sw@weilnetz.de>
Date: Sat, 1 Sep 2012 09:30:39 +0200
Subject: [PATCH] qapi: Fix potential NULL pointer segfault
Report from smatch:
qapi-visit.c:1640 visit_type_BlockdevAction(8) error:
we previously assumed 'obj' could be null (see line 1639)
qapi-visit.c:2432 visit_type_NetClientOptions(8) error:
we previously assumed 'obj' could be null (see line 2431)
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
(cherry picked from commit 227ccf6bff234c29974c2c18ecd3a29e6b965e3d)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
---
scripts/qapi-visit.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/qapi-visit.py b/scripts/qapi-visit.py
index 04ef7c4..5b15ee3 100644
--- a/scripts/qapi-visit.py
+++ b/scripts/qapi-visit.py
@@ -157,7 +157,7 @@ void visit_type_%(name)s(Visitor *m, %(name)s ** obj, const char *name, Error **
if (!error_is_set(errp)) {
visit_start_struct(m, (void **)obj, "%(name)s", name, sizeof(%(name)s), &err);
if (!err) {
- if (!obj || *obj) {
+ if (obj && *obj) {
visit_type_%(name)sKind(m, &(*obj)->kind, "type", &err);
if (!err) {
switch ((*obj)->kind) {
--
1.7.12.1