perl/perl-5.25.0-Fix-precedence-in-hv_ename_delete.patch
2016-06-22 10:26:37 +02:00

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From 60a26c797bbff039ea7f861903732e7cceae415a Mon Sep 17 00:00:00 2001
From: Hugo van der Sanden <hv@crypt.org>
Date: Sun, 15 May 2016 13:48:58 -0700
Subject: [PATCH 1/2] [perl #128086] Fix precedence in hv_ename_delete
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
A stashs array of names may have null for the first entry, in which
case it is not one of the effective names, and the name count will
be negative.
The count > 0 is meant to prevent hv_ename_delete from trying to
read that entry, but a precedence problem introduced in 4643eb699
stopped it from doing that.
[This commit message was written by the committer.]
Signed-off-by: Petr Písař <ppisar@redhat.com>
---
hv.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hv.c b/hv.c
index 7b5ad95..5523475 100644
--- a/hv.c
+++ b/hv.c
@@ -2476,9 +2476,10 @@ Perl_hv_ename_delete(pTHX_ HV *hv, const char *name, U32 len, U32 flags)
return;
}
if (
- count > 0 && (HEK_UTF8(*namep) || (flags & SVf_UTF8))
+ count > 0 && ((HEK_UTF8(*namep) || (flags & SVf_UTF8))
? hek_eq_pvn_flags(aTHX_ *namep, name, (I32)len, flags)
: (HEK_LEN(*namep) == (I32)len && memEQ(HEK_KEY(*namep), name, len))
+ )
) {
aux->xhv_name_count = -count;
}
--
2.5.5
From 7f1bd063e5aa5aeb26ed9c39db6864cc0ecd7a73 Mon Sep 17 00:00:00 2001
From: Father Chrysostomos <sprout@cpan.org>
Date: Sun, 15 May 2016 13:49:33 -0700
Subject: [PATCH 2/2] [perl #128086] Test the prev commit
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Petr Písař <ppisar@redhat.com>
---
t/op/stash.t | 9 ++++++++-
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/t/op/stash.t b/t/op/stash.t
index 151b729..b8e0f34 100644
--- a/t/op/stash.t
+++ b/t/op/stash.t
@@ -7,7 +7,7 @@ BEGIN {
BEGIN { require "./test.pl"; }
-plan( tests => 51 );
+plan( tests => 52 );
# Used to segfault (bug #15479)
fresh_perl_like(
@@ -334,3 +334,10 @@ is runperl(
),
"ok\n",
'[perl #123847] no crash from *foo::=*bar::=*glob_with_hash';
+
+is runperl(
+ prog => '%h; *::::::=*h; delete $::{q|::|}; print qq|ok\n|',
+ stderr => 1,
+ ),
+ "ok\n",
+ '[perl #128086] no crash from assigning hash to *:::::: & deleting it';
--
2.5.5