linux-kernel - [PATCH] perf top: fix crash on annotate request

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1319048598-15030-1-git-send-email-dsahern@gmail.com>
Date:	Wed, 19 Oct 2011 12:23:18 -0600
From:	David Ahern <dsahern@...il.com>
To:	acme@...stprotocols.net, linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, peterz@...radead.org, fweisbec@...il.com,
	David Ahern <dsahern@...il.com>
Subject: [PATCH] perf top: fix crash on annotate request

Hitting an annotate case where src is not set and
perf-top crashes.

Signed-off-by: David Ahern <dsahern@...il.com>
---
 tools/perf/util/annotate.c             |    3 +++
 tools/perf/util/ui/browsers/annotate.c |    2 ++
 2 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index bc8f477..26652b1 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -205,6 +205,9 @@ static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
 	size_t line_len;
 	s64 line_ip, offset = -1;
 
+	if (!notes->src)
+		return -1;
+
 	if (getline(&line, &line_len, file) < 0)
 		return -1;
 
diff --git a/tools/perf/util/ui/browsers/annotate.c b/tools/perf/util/ui/browsers/annotate.c
index a2c351c..5a67ead 100644
--- a/tools/perf/util/ui/browsers/annotate.c
+++ b/tools/perf/util/ui/browsers/annotate.c
@@ -410,6 +410,8 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
 	ui_helpline__push("Press <- or ESC to exit");
 
 	notes = symbol__annotation(sym);
+	if (!notes->src)
+		return -1;
 
 	list_for_each_entry(pos, &notes->src->source, node) {
 		struct objdump_line_rb_node *rbpos;
-- 
1.7.6.4

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/