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Subject[PATCH] perf: Read buffer overflow
Check whether index is within bounds before testing the element.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
---
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index b20a4b6..edecdbe 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -252,7 +252,7 @@ static int strcommon(const char *pathname)
{
int n = 0;

- while (pathname[n] == cwd[n] && n < cwdlen)
+ while (n < cwdlen && pathname[n] == cwd[n])
++n;

return n;
diff --git a/tools/perf/util/quote.c b/tools/perf/util/quote.c
index c6e5dc0..2726fe4 100644
--- a/tools/perf/util/quote.c
+++ b/tools/perf/util/quote.c
@@ -318,7 +318,7 @@ char *quote_path_relative(const char *in, int len,
strbuf_addch(out, '"');
if (prefix) {
int off = 0;
- while (prefix[off] && off < len && prefix[off] == in[off])
+ while (off < len && prefix[off] && prefix[off] == in[off])
if (prefix[off] == '/') {
prefix += off + 1;
in += off + 1;

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