|
 |
0a7476 |
From 7fcdf3bbd65b4f3e21128089a559c064edbcb8dc Mon Sep 17 00:00:00 2001
|
|
|
0a7476 |
Message-Id: <7fcdf3bbd65b4f3e21128089a559c064edbcb8dc@dist-git>
|
|
|
0a7476 |
From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= <berrange@redhat.com>
|
|
|
0a7476 |
Date: Tue, 21 May 2019 11:02:12 +0100
|
|
|
0a7476 |
Subject: [PATCH] util: require command args to be non-NULL
|
|
|
0a7476 |
MIME-Version: 1.0
|
|
|
0a7476 |
Content-Type: text/plain; charset=UTF-8
|
|
|
0a7476 |
Content-Transfer-Encoding: 8bit
|
|
|
0a7476 |
|
|
|
0a7476 |
The virCommand APIs do not expect to be given a NULL value for an arg
|
|
|
0a7476 |
name or value. Such a mistake can lead to execution of the wrong
|
|
|
0a7476 |
command, as the NULL may prematurely terminate the list of args.
|
|
|
0a7476 |
Detect this and report suitable error messages.
|
|
|
0a7476 |
|
|
|
0a7476 |
This identified a flaw in the storage test which was passing a NULL
|
|
|
0a7476 |
instead of the volume path. This flaw was then validated by an incorrect
|
|
|
0a7476 |
set of qemu-img args as expected data.
|
|
|
0a7476 |
|
|
|
0a7476 |
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
|
|
|
0a7476 |
(cherry picked from commit 912c6b22fc622cd7c7d29c7f8eaeb816b266daac)
|
|
|
0a7476 |
|
|
|
0a7476 |
https: //bugzilla.redhat.com/show_bug.cgi?id=1672957
|
|
|
0a7476 |
Message-Id: <20190521100213.16875-2-berrange@redhat.com>
|
|
|
0a7476 |
Reviewed-by: Ján Tomko <jtomko@redhat.com>
|
|
|
0a7476 |
---
|
|
|
0a7476 |
src/util/vircommand.c | 10 ++++++++++
|
|
|
0a7476 |
tests/storagevolxml2argvdata/qcow2-zerocapacity.argv | 2 +-
|
|
|
0a7476 |
tests/storagevolxml2xmlin/vol-qcow2-zerocapacity.xml | 1 +
|
|
|
0a7476 |
3 files changed, 12 insertions(+), 1 deletion(-)
|
|
|
0a7476 |
|
|
|
0a7476 |
diff --git a/src/util/vircommand.c b/src/util/vircommand.c
|
|
|
0a7476 |
index 6dab105f56..68cf63c28a 100644
|
|
|
0a7476 |
--- a/src/util/vircommand.c
|
|
|
0a7476 |
+++ b/src/util/vircommand.c
|
|
|
0a7476 |
@@ -1509,6 +1509,12 @@ virCommandAddArg(virCommandPtr cmd, const char *val)
|
|
|
0a7476 |
if (!cmd || cmd->has_error)
|
|
|
0a7476 |
return;
|
|
|
0a7476 |
|
|
|
0a7476 |
+ if (val == NULL) {
|
|
|
0a7476 |
+ cmd->has_error = EINVAL;
|
|
|
0a7476 |
+ abort();
|
|
|
0a7476 |
+ return;
|
|
|
0a7476 |
+ }
|
|
|
0a7476 |
+
|
|
|
0a7476 |
if (VIR_STRDUP_QUIET(arg, val) < 0) {
|
|
|
0a7476 |
cmd->has_error = ENOMEM;
|
|
|
0a7476 |
return;
|
|
|
0a7476 |
@@ -1606,6 +1612,10 @@ virCommandAddArgFormat(virCommandPtr cmd, const char *format, ...)
|
|
|
0a7476 |
void
|
|
|
0a7476 |
virCommandAddArgPair(virCommandPtr cmd, const char *name, const char *val)
|
|
|
0a7476 |
{
|
|
|
0a7476 |
+ if (name == NULL || val == NULL) {
|
|
|
0a7476 |
+ cmd->has_error = EINVAL;
|
|
|
0a7476 |
+ return;
|
|
|
0a7476 |
+ }
|
|
|
0a7476 |
virCommandAddArgFormat(cmd, "%s=%s", name, val);
|
|
|
0a7476 |
}
|
|
|
0a7476 |
|
|
|
0a7476 |
diff --git a/tests/storagevolxml2argvdata/qcow2-zerocapacity.argv b/tests/storagevolxml2argvdata/qcow2-zerocapacity.argv
|
|
|
0a7476 |
index d83b08b342..45894931ae 100644
|
|
|
0a7476 |
--- a/tests/storagevolxml2argvdata/qcow2-zerocapacity.argv
|
|
|
0a7476 |
+++ b/tests/storagevolxml2argvdata/qcow2-zerocapacity.argv
|
|
|
0a7476 |
@@ -1 +1 @@
|
|
|
0a7476 |
-qemu-img create -f qcow2 -o compat=0.10 0K
|
|
|
0a7476 |
+qemu-img create -f qcow2 -o compat=0.10 /var/lib/libvirt/images/OtherDemo.img 0K
|
|
|
0a7476 |
diff --git a/tests/storagevolxml2xmlin/vol-qcow2-zerocapacity.xml b/tests/storagevolxml2xmlin/vol-qcow2-zerocapacity.xml
|
|
|
0a7476 |
index 1d1e6deac0..027a73b4bf 100644
|
|
|
0a7476 |
--- a/tests/storagevolxml2xmlin/vol-qcow2-zerocapacity.xml
|
|
|
0a7476 |
+++ b/tests/storagevolxml2xmlin/vol-qcow2-zerocapacity.xml
|
|
|
0a7476 |
@@ -1,6 +1,7 @@
|
|
|
0a7476 |
<volume>
|
|
|
0a7476 |
<name>OtherDemo.img</name>
|
|
|
0a7476 |
<target>
|
|
|
0a7476 |
+ <path>/var/lib/libvirt/images/OtherDemo.img</path>
|
|
|
0a7476 |
<format type="qcow2"/>
|
|
|
0a7476 |
</target>
|
|
|
0a7476 |
<capacity>0</capacity>
|
|
|
0a7476 |
--
|
|
|
0a7476 |
2.21.0
|
|
|
0a7476 |
|