Messages in this thread Patch in this message | | | From | Jiri Olsa <> | Subject | [PATCH 3/9] perf annotate: Fix sizeof_sym_hist overflow issue | Date | Mon, 5 Oct 2015 20:06:03 +0200 |
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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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