diff --git a/modules/compiler_vm/languages/c11.pm b/modules/compiler_vm/languages/c11.pm
index 0a89a0a8..6792493f 100755
--- a/modules/compiler_vm/languages/c11.pm
+++ b/modules/compiler_vm/languages/c11.pm
@@ -14,7 +14,7 @@ sub initialize {
 
   $self->{sourcefile}      = 'prog.c';
   $self->{execfile}        = 'prog';
-  $self->{default_options} = '-Wextra -Wall -Wno-unused -pedantic -Wfloat-equal -Wshadow -std=c11 -lm -Wfatal-errors -fsanitize=alignment,undefined';
+  $self->{default_options} = '-Wextra -Wall -Wno-unused -pedantic -Wfloat-equal -Wshadow -std=c11 -lm -Wfatal-errors -fsanitize=alignment,undefined -fsanitize-address-use-after-scope -fno-omit-frame-pointer';
   $self->{options_paste}   = '-fdiagnostics-show-caret';
   $self->{options_nopaste} = '-fno-diagnostics-show-caret';
   $self->{cmdline}         = 'gcc -ggdb -g3 $sourcefile $options -o $execfile';
diff --git a/modules/compiler_vm/languages/server/_c_base.pm b/modules/compiler_vm/languages/server/_c_base.pm
index f471a2e7..c1c55549 100755
--- a/modules/compiler_vm/languages/server/_c_base.pm
+++ b/modules/compiler_vm/languages/server/_c_base.pm
@@ -79,7 +79,15 @@ sub postprocess {
 
   print "Executing gdb\n";
   my @args = $self->split_line($self->{arguments}, strip_quotes => 1, preserve_escapes => 0);
-  my ($exitval, $stdout, $stderr) = $self->execute(60, undef, 'compiler_watchdog.pl', @args);
+  my ($exitval, $stdout, $stderr);
+
+  if ($self->{cmdline} =~ /-fsanitize=(?:[^ ]+,)?address/) {
+      # leak sanitizer doesn't work under ptrace/gdb
+      # ASAN_OPTIONS=strict_string_checks=1:detect_stack_use_after_return=1:check_initialization_order=1:strict_init_order=1
+      ($exitval, $stdout, $stderr) = $self->execute(60, undef, './prog', @args);
+  } else {
+      ($exitval, $stdout, $stderr) = $self->execute(60, undef, 'compiler_watchdog.pl', @args);
+  }
 
   my $result = $stderr;
   $result .= ' ' if length $result;