[libvirt] [PATCH] virExec: avoid uninitialized memory usage
valgrind warns:
==21079== Syscall param rt_sigaction(act->sa_mask) points to uninitialised byte(s)
==21079== at 0x329840F63E: __libc_sigaction (sigaction.c:67)
==21079== by 0x4E5A8E7: __virExec (util.c:661)
Regression introduced in commit ab07533e. Technically, sa_mask
shouldn't affect operation if sa_flags selects sa_handler, and
sa_handler selects SIG_IGN, but better safe than sorry.
* src/util/util.c (__virExec): Supply missing sigemptyset.
---
src/util/util.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/src/util/util.c b/src/util/util.c
index 965e96d..9bd7015 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -657,6 +657,7 @@ __virExec(const char *const*argv,
struct sigaction waxon, waxoff;
waxoff.sa_handler = SIG_IGN;
waxoff.sa_flags = 0;
+ sigemptyset(&waxoff.sa_mask);
memset(&waxon, 0, sizeof(waxon));
if (sigaction(SIGPIPE, &waxoff, &waxon) < 0) {
virReportSystemError(errno, "%s",
--
1.7.4