From 47fbe53bef3b219a365ebf3eca949d6cd4c5291c Mon Sep 17 00:00:00 2001 From: David Ahern Date: Sun, 13 Nov 2011 10:45:27 -0700 Subject: [PATCH] perf session: Fix crash with invalid CPU list commit 5d67be9 added the option to specify a range of CPUs of interest, but does not catch an invalid CPU list: $ perf script -c foo Segmentation fault (core dumped) Cc: Anton Blanchard Link: http://lkml.kernel.org/r/1321206327-5881-1-git-send-email-dsahern@gmail.com Signed-off-by: David Ahern Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 85c1e6b76f0a..0f4555ce9063 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1333,6 +1333,10 @@ int perf_session__cpu_bitmap(struct perf_session *session, } map = cpu_map__new(cpu_list); + if (map == NULL) { + pr_err("Invalid cpu_list\n"); + return -1; + } for (i = 0; i < map->nr; i++) { int cpu = map->map[i]; -- 2.39.5