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Commit 7e030655 authored by Roel Kluin's avatar Roel Kluin Committed by Ingo Molnar
Browse files

perf: Fix read buffer overflow 



Check whether index is within bounds before testing the element.

Signed-off-by: default avatarRoel Kluin <roel.kluin@gmail.com>
Cc: a.p.zijlstra@chello.nl
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <4A757BCF.40101@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 59b90056

tools/perf/builtin-report.c

+1 −1
Original line number Diff line number Diff line
@@ -253,7 +253,7 @@ 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;

tools/perf/util/quote.c

+1 −1
Original line number Diff line number Diff line
@@ -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;