Adrian reported a segfault when using --no-out-pages:
$ tools/perf/perf record -vv --no-out-pages uname
Segmentation fault (core dumped)
The same occurs with --no-mmap-pages. Fix by checking that str is non-NULL
before parsing it.
Reported-by: Adrian Hunter <adrian.hun...@intel.com>
Signed-off-by: David Ahern <dsah...@gmail.com>
Cc: Adrian Hunter <adrian.hun...@intel.com>
Cc: Ingo Molnar <mi...@kernel.org>
Cc: Jiri Olsa <jo...@redhat.com>
---
tools/perf/util/evlist.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 99dc58e5dcc3..3960560f873a 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -719,6 +719,9 @@ int perf_evlist__parse_mmap_pages(const struct option *opt,
const char *str,
{ .tag = 0 },
};
+ if (str == NULL)
+ return -1;
+
val = parse_tag_value(str, tags);
if (val != (unsigned long) -1) {
/* we got file size value */
--
1.8.3.4 (Apple Git-47)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
