From: Jiri Olsa <jo...@redhat.com> The dso__read_binary_type_filename gets the dso's file name to open. We need to check it for regular file before trying to open it, otherwise we might get stuck with device file.
Signed-off-by: Jiri Olsa <jo...@kernel.org> Cc: Andi Kleen <a...@firstfloor.org> Cc: David Ahern <dsah...@gmail.com> Cc: Don Zickus <dzic...@redhat.com> Cc: Joe Mario <jma...@redhat.com> Cc: Namhyung Kim <namhy...@kernel.org> Cc: Peter Zijlstra <a.p.zijls...@chello.nl> Link: http://lkml.kernel.org/r/20160920161245.GA8995@krava Signed-off-by: Arnaldo Carvalho de Melo <a...@redhat.com> --- tools/perf/util/dso.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c index 774f6ec884d5..d2c6cdd9d42b 100644 --- a/tools/perf/util/dso.c +++ b/tools/perf/util/dso.c @@ -363,6 +363,9 @@ static int __open_dso(struct dso *dso, struct machine *machine) return -EINVAL; } + if (!is_regular_file(name)) + return -EINVAL; + fd = do_open(name); free(name); return fd; -- 2.7.4
