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Do not truncate syscall() return value to 32 bits

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Petr Písař 2012-09-11 10:51:23 +02:00
parent d7a74399bf
commit 30a6001f9c
2 changed files with 38 additions and 0 deletions
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32
perl-5.16.1-perl-113980-pp_syscall-I32-retval-truncates-the-retu.patch Normal file
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@ -0,0 +1,32 @@
From f9344c91a4ca48288bba30dc94a2d712d0659670 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 4 Jul 2012 08:21:15 -0700
Subject: [PATCH] [perl #113980] pp_syscall: "I32 retval" truncates the
returned value
I noticed today that syscall(9, ...) (mmap) doesn't work for me.
The problem is obvious, pp_syscall() uses I32 for retval and the
"long" address doesn't fit into "int".
The one-liner below should fix the problem.
---
pp_sys.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/pp_sys.c b/pp_sys.c
index fb93732..c5d63ac 100644
--- a/pp_sys.c
+++ b/pp_sys.c
@@ -5456,7 +5456,7 @@ PP(pp_syscall)
register I32 items = SP - MARK;
unsigned long a[20];
register I32 i = 0;
- I32 retval = -1;
+ IV retval = -1;
if (PL_tainting) {
while (++MARK <= SP) {
--
1.7.11.4

6
perl.spec
View File

@ -96,6 +96,9 @@ Patch12: perl-5.16.1-PATCH-perl-114220-h-not-equiv-to-h.patch
# Clear $@ before `do' I/O error, rhbz#834226, RT#113730
Patch13: perl-5.16.1-RT-113730-should-be-cleared-on-do-IO-error.patch
# Do not truncate syscall() return value to 32 bits, rhbz#838551, RT#113980
Patch14: perl-5.16.1-perl-113980-pp_syscall-I32-retval-truncates-the-retu.patch
# Update some of the bundled modules
# see http://fedoraproject.org/wiki/Perl/perl.spec for instructions
@ -1330,6 +1333,7 @@ tarball from perl.org.
%patch11 -p1
%patch12 -p1
%patch13 -p1
%patch14 -p1
#copy the example script
cp -a %{SOURCE5} .
@ -1535,6 +1539,7 @@ pushd %{build_archlib}/CORE/
'Fedora Patch11: Do not access freed memory when cloning thread (RT#111610)' \
'Fedora Patch12: Match non-breakable space with /[\h]/ in ASCII mode (RT#114220)' \
'Fedora Patch13: Clear $@ before "do" I/O error (RT#113730)' \
'Fedora Patch14: Do not truncate syscall() return value to 32 bits (RT#113980)' \
%{nil}
rm patchlevel.bak
@ -2650,6 +2655,7 @@ sed \
- Do not access freed memory when cloning thread (bug #825749)
- Match non-breakable space with /[\h]/ in ASCII mode (bug #844919)
- Clear $@ before `do' I/O error (bug #834226)
- Do not truncate syscall() return value to 32 bits (bug #838551)
* Wed Sep 05 2012 Petr Pisar <ppisar@redhat.com> - 4:5.16.1-232
- Move App::Cpan from perl-Test-Harness to perl-CPAN (bug #854577)