path: root/vm_backtrace.c
diff options
authorko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-09-21 06:41:07 +0000
committerko1 <ko1@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2018-09-21 06:41:07 +0000
commitac4b2d990c8484af7a214381e61d3494b6b858b1 (patch)
tree772448ed64eb627f8c03f37f4a5eaca95a29aecd /vm_backtrace.c
parenta810a1a78c6ed91debffc37d9f8e6bea07decbcf (diff)
escape all env properly.
* vm_backtrace.c (rb_debug_inspector_open): escape all env using `rb_vm_stack_to_heap()` before making bindings. [Bug #15105] There is a complicated story of this issue: Without this patch, IFUNC frame does not escaped. A IFUNC frame points to CFUNC ep as previous ep. However, CFUNC ep can be escaped because of making bindings of Ruby level frames. IFUNC's ep can points to invalidated ep and `rb_iter_break()` will fail. This is why `any?` fails. * test/-ext-/debug/test_debug.rb: add a test. git-svn-id: svn+ssh:// b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'vm_backtrace.c')
1 files changed, 3 insertions, 0 deletions
diff --git a/vm_backtrace.c b/vm_backtrace.c
index 59340292cf..0493ed8c89 100644
--- a/vm_backtrace.c
+++ b/vm_backtrace.c
@@ -1202,6 +1202,9 @@ rb_debug_inspector_open(rb_debug_inspector_func_t func, void *data)
enum ruby_tag_type state;
volatile VALUE MAYBE_UNUSED(result);
+ /* escape all env to heap */
+ rb_vm_stack_to_heap(ec);
+ = ec;
dbg_context.cfp =>cfp;
dbg_context.backtrace = ec_backtrace_location_ary(ec, 0, 0);