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* eval_jump.c (rb_exec_end_proc): fix double free or corruption error

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when reentering by callcc. [ruby-core:58329] [Bug #9110]

 * test/ruby/test_beginendblock.rb: test for above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43685 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
glass 2013-11-15 15:29:23 +00:00
parent 549b35c1dc
commit 77a5f5b57b
3 changed files with 34 additions and 2 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
Sat Nov 16 00:18:36 2013 Masaki Matsushita <glass.saga@gmail.com>
* eval_jump.c (rb_exec_end_proc): fix double free or corruption error
when reentering by callcc. [ruby-core:58329] [Bug #9110]
* test/ruby/test_beginendblock.rb: test for above.
Fri Nov 15 22:21:34 2013 Nobuyoshi Nakada <nobu@ruby-lang.org>
* hash.c (hash_foreach_iter, hash_foreach_ensure, rb_hash_foreach):

17
eval_jump.c
View file

@ -97,6 +97,8 @@ void
rb_exec_end_proc(void)
{
struct end_proc_data *volatile link;
struct end_proc_data *ephemeral_end_procs_head = ephemeral_end_procs;
struct end_proc_data *end_procs_head = end_procs;
int status;
volatile int safe = rb_safe_level();
rb_thread_t *th = GET_THREAD();
@ -116,7 +118,6 @@ rb_exec_end_proc(void)
error_handle(status);
if (!NIL_P(th->errinfo)) errinfo = th->errinfo;
}
xfree(link);
}
while (end_procs) {
@ -133,8 +134,20 @@ rb_exec_end_proc(void)
error_handle(status);
if (!NIL_P(th->errinfo)) errinfo = th->errinfo;
}
xfree(link);
}
link = ephemeral_end_procs_head;
while (link) {
xfree(link);
link = link->next;
}
link = end_procs_head;
while (link) {
xfree(link);
link = link->next;
}
rb_set_safe_level_force(safe);
th->errinfo = errinfo;
}

12
test/ruby/test_beginendblock.rb
View file

@ -173,4 +173,16 @@ EOW
assert_equal(["", "", 42], [out, err, status.exitstatus], "#{bug5218}: #{ex}")
end
end
def test_callcc_at_exit
bug9110 = '[ruby-core:58329][Bug #9110]'
ruby = EnvUtil.rubybin
script = <<EOS
require "continuation"
c = nil
at_exit { c.call }
at_exit { callcc {|_c| c = _c } }
EOS
assert system(ruby, "-e", script)
end
end