From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from merlin.infradead.org ([205.233.59.134]:54974 "EHLO merlin.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752801AbeCXUZS (ORCPT ); Sat, 24 Mar 2018 16:25:18 -0400 To: LKML , Andrew Morton , Linus Torvalds Cc: Petru Mihancea , Linux FS Devel From: Randy Dunlap Subject: [PATCH] sysctl: fix sizeof argument to match variable name Message-ID: Date: Sat, 24 Mar 2018 13:23:03 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-fsdevel-owner@vger.kernel.org List-ID: From: Randy Dunlap Fix sizeof argument to be the same as the data variable name. Probably a copy/paste error. Mostly harmless since both variables are unsigned int. Fixes kernel bugzilla #197371: Possible access to unintended variable in "kernel/sysctl.c" line 1339 https://bugzilla.kernel.org/show_bug.cgi?id=197371 Reported-by: Petru Mihancea Signed-off-by: Randy Dunlap --- kernel/sysctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- lnx-416-rc6.orig/kernel/sysctl.c +++ lnx-416-rc6/kernel/sysctl.c @@ -1329,7 +1329,7 @@ static struct ctl_table vm_table[] = { { .procname = "dirtytime_expire_seconds", .data = &dirtytime_expire_interval, - .maxlen = sizeof(dirty_expire_interval), + .maxlen = sizeof(dirtytime_expire_interval), .mode = 0644, .proc_handler = dirtytime_interval_handler, .extra1 = &zero,