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* vm_backtrace.c (vm_backtrace_to_ary): check negative size (2nd arg).

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38154 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
ko1 2012-12-03 07:23:57 +00:00
parent 9def782889
commit 1d193d9251
2 changed files with 8 additions and 1 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Mon Dec 3 16:23:09 2012 Koichi Sasada <ko1@atdot.net>
* vm_backtrace.c (vm_backtrace_to_ary): check negative size (2nd arg).
Mon Dec 3 15:50:33 2012 Akinori MUSHA <knu@iDaemons.org>
* misc/ruby-additional.el (ruby-mode-set-encoding): Unbreak by

5
vm_backtrace.c
View file

@ -755,11 +755,14 @@ vm_backtrace_to_ary(rb_thread_t *th, int argc, VALUE *argv, int lev_default, int
}
case 2:
lev = NUM2LONG(level);
n = NUM2LONG(vn);
if (lev < 0) {
rb_raise(rb_eArgError, "negative level (%ld)", lev);
}
if (n < 0) {
rb_raise(rb_eArgError, "negative size (%ld)", n);
}
lev += lev_plus;
n = NUM2LONG(vn);
break;
default:
lev = n = 0; /* to avoid warning */