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| author | nagachika <nagachika@ruby-lang.org> | 2022-03-12 16:53:37 +0900 |
|---|---|---|
| committer | nagachika <nagachika@ruby-lang.org> | 2022-03-12 16:53:37 +0900 |
| commit | e18e6af604786be481115c7340c1450332615b57 (patch) | |
| tree | 6d5f0645c3338dff5502baa928d9e622766b72ae /error.c | |
| parent | bac99c5175bf58815846f9987093a6d944d07fd3 (diff) | |
merge revision(s) 9e0a91d0640600f2dfd7fc1d5fae6667019c9ca5: [Backport #18458]
Don't segfault if Warning.warn is undefined
Check that there is a method entry for the method before passing
it to rb_method_entry_arity.
Fixes [Bug #18458]
---
error.c | 3 ++-
test/ruby/test_exception.rb | 8 ++++++++
2 files changed, 10 insertions(+), 1 deletion(-)
Diffstat (limited to 'error.c')
| -rw-r--r-- | error.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -306,7 +306,8 @@ rb_warning_warn(VALUE mod, VALUE str) static int rb_warning_warn_arity(void) { - return rb_method_entry_arity(rb_method_entry(rb_singleton_class(rb_mWarning), id_warn)); + const rb_method_entry_t *me = rb_method_entry(rb_singleton_class(rb_mWarning), id_warn); + return me ? rb_method_entry_arity(me) : 1; } static VALUE |