From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030983AbbD1Nf3 (ORCPT ); Tue, 28 Apr 2015 09:35:29 -0400 Received: from mail.kernel.org ([198.145.29.136]:34994 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030965AbbD1NfW (ORCPT ); Tue, 28 Apr 2015 09:35:22 -0400 From: Arnaldo Carvalho de Melo To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, Namhyung Kim , David Ahern , Peter Zijlstra , Arnaldo Carvalho de Melo Subject: [PATCH 54/64] perf hists browser: Fix possible memory leak Date: Tue, 28 Apr 2015 10:30:46 -0300 Message-Id: <1430227856-25825-55-git-send-email-acme@kernel.org> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1430227856-25825-1-git-send-email-acme@kernel.org> References: <1430227856-25825-1-git-send-email-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Namhyung Kim The options array saves strings for each popup menu item. The number of items can be vary according to the currently selected item. So it can leak some memory if it's exited from a small item. Fix it by freeing all items when loop terminates. Signed-off-by: Namhyung Kim Acked-by: Jiri Olsa Cc: David Ahern Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1429687101-4360-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/ui/browsers/hists.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c index 995b7a8596b1..0972d4722297 100644 --- a/tools/perf/ui/browsers/hists.c +++ b/tools/perf/ui/browsers/hists.c @@ -1424,7 +1424,8 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events, struct hist_browser *browser = hist_browser__new(hists); struct branch_info *bi; struct pstack *fstack; - char *options[16]; +#define MAX_OPTIONS 16 + char *options[MAX_OPTIONS]; int nr_options = 0; int key = -1; char buf[64]; @@ -1691,7 +1692,8 @@ skip_annotation: "Switch to another data file in PWD") > 0) switch_data = nr_options++; add_exit_option: - options[nr_options++] = (char *)"Exit"; + if (asprintf(&options[nr_options], "Exit") > 0) + nr_options++; retry_popup_menu: choice = ui__popup_menu(nr_options, options); @@ -1812,7 +1814,7 @@ out_free_stack: pstack__delete(fstack); out: hist_browser__delete(browser); - free_popup_options(options, nr_options - 1); + free_popup_options(options, MAX_OPTIONS); return key; } -- 1.9.3