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Date:	Tue, 6 Oct 2015 00:13:29 -0700
From:	tip-bot for Jiri Olsa <>
Subject: [tip:perf/core] perf annotate: Fix sizeof_sym_hist overflow issue

Commit-ID:  5ec4502d774699194952209ff3ebe65d2472e15a
Author:     Jiri Olsa <>
AuthorDate: Mon, 5 Oct 2015 20:06:03 +0200
Committer:  Arnaldo Carvalho de Melo <>
CommitDate: Mon, 5 Oct 2015 16:15:38 -0300

perf annotate: Fix sizeof_sym_hist overflow issue

The annotated_source::sizeof_sym_hist could easily overflow int size,
resulting in crash in __symbol__inc_addr_samples.

Changing its type int size_t as was probably intended from beginning
based on the initialization code in symbol__alloc_hist.

Signed-off-by: Jiri Olsa <>
Cc: David Ahern <>
Cc: Don Zickus <>
Cc: Kan Liang <>
Cc: Namhyung Kim <>
Cc: Peter Zijlstra <>
Signed-off-by: Arnaldo Carvalho de Melo <>
 tools/perf/util/annotate.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index e999609..cea323d 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -122,7 +122,7 @@ struct annotated_source {
 	struct list_head   source;
 	struct source_line *lines;
 	int    		   nr_histograms;
-	int    		   sizeof_sym_hist;
+	size_t		   sizeof_sym_hist;
 	struct cyc_hist	   *cycles_hist;
 	struct sym_hist	   histograms[0];
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