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Groups > linux.kernel > #1239811
| From | Jiri Olsa <jolsa@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 3/9] perf annotate: Fix sizeof_sym_hist overflow issue |
| Date | 2015-10-05 20:10 +0200 |
| Message-ID | <qgimZ-6vn-17@gated-at.bofh.it> (permalink) |
| References | <qgimZ-6vn-11@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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 initialization code in symbol__alloc_hist.
Link: http://lkml.kernel.org/n/tip-tf6ciz2mziuijvm25034qzcv@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
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 e9996092a093..cea323d9ee7e 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];
};
--
2.4.3
--
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[PATCH 3/9] perf annotate: Fix sizeof_sym_hist overflow issue Jiri Olsa <jolsa@kernel.org> - 2015-10-05 20:10 +0200 [tip:perf/core] perf annotate: Fix sizeof_sym_hist overflow issue tip-bot for Jiri Olsa <tipbot@zytor.com> - 2015-10-06 09:20 +0200
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