From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751827AbaL3VEL (ORCPT ); Tue, 30 Dec 2014 16:04:11 -0500 Received: from smtprelay0084.hostedemail.com ([216.40.44.84]:46965 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751788AbaL3VEG (ORCPT ); Tue, 30 Dec 2014 16:04:06 -0500 X-Session-Marker: 6A6F6540706572636865732E636F6D X-Spam-Summary: 2,0,0,,d41d8cd98f00b204,joe@perches.com,:::::,RULES_HIT:41:355:379:541:800:960:973:982:988:989:1260:1277:1311:1313:1314:1345:1373:1437:1515:1516:1518:1534:1541:1593:1594:1711:1730:1747:1777:1792:2393:2553:2559:2562:2828:3138:3139:3140:3141:3142:3352:3653:3865:3871:3874:4321:4605:5007:6261:8957:10004:10400:10848:11026:11473:11658:11914:12043:12438:12517:12519:12555:13069:13311:13357:14394:21080,0,RBL:none,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:none,Custom_rules:0:0:0 X-HE-Tag: roll31_404918f065634 X-Filterd-Recvd-Size: 2400 Message-ID: <1419973437.13502.2.camel@perches.com> Subject: [PATCH] checkpatch: Improve octal permissions tests From: Joe Perches To: Andrew Morton Cc: Andy Whitcroft , LKML Date: Tue, 30 Dec 2014 13:03:57 -0800 Content-Type: text/plain; charset="ISO-8859-1" X-Mailer: Evolution 3.12.7-0ubuntu1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add world writable permissions tests for the various functions like debugfs etc... Add $String type for $FuncArg so that string constants are matched. Signed-off-by: Joe Perches --- scripts/checkpatch.pl | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index f0bb6d6..d1fd444 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -298,6 +298,7 @@ our $Binary = qr{(?i)0b[01]+$Int_type?}; our $Hex = qr{(?i)0x[0-9a-f]+$Int_type?}; our $Int = qr{[0-9]+$Int_type?}; our $Octal = qr{0[0-7]+$Int_type?}; +our $String = qr{"[X\t]*"}; our $Float_hex = qr{(?i)0x[0-9a-f]+p-?[0-9]+[fl]?}; our $Float_dec = qr{(?i)(?:[0-9]+\.[0-9]*|[0-9]*\.[0-9]+)(?:e-?[0-9]+)?[fl]?}; our $Float_int = qr{(?i)[0-9]+e-?[0-9]+[fl]?}; @@ -517,7 +518,7 @@ our $Typecast = qr{\s*(\(\s*$NonptrType\s*\)){0,1}\s*}; our $balanced_parens = qr/(\((?:[^\(\)]++|(?-1))*\))/; our $LvalOrFunc = qr{((?:[\&\*]\s*)?$Lval)\s*($balanced_parens{0,1})\s*}; -our $FuncArg = qr{$Typecast{0,1}($LvalOrFunc|$Constant)}; +our $FuncArg = qr{$Typecast{0,1}($LvalOrFunc|$Constant|$String)}; our $declaration_macros = qr{(?x: (?:$Storage\s+)?(?:[A-Z_][A-Z0-9]*_){0,2}(?:DEFINE|DECLARE)(?:_[A-Z0-9]+){1,2}\s*\(| @@ -5255,6 +5256,9 @@ sub process { length($val) ne 4)) { ERROR("NON_OCTAL_PERMISSIONS", "Use 4 digit octal (0777) not decimal permissions\n" . $herecurr); + } elsif ($val =~ /^$Octal$/ && (oct($val) & 02)) { + ERROR("EXPORTED_WORLD_WRITABLE", + "Exporting writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr); } } }