New submission from Gregory P. Smith <g...@krypto.org>:
An off by one error was introduced to peephole.c by the "off by one error fix" in https://bugs.python.org/issue28517. Clang's memory sanitizer detects it (msan). find_op is ultimately called with h == codelen so it accesses one byte out of bounds. I have a fix, PR coming. ---------- assignee: gregory.p.smith components: Interpreter Core messages: 329485 nosy: gregory.p.smith, serhiy.storchaka priority: normal severity: normal status: open title: Off by one error in peephole call to find_op on case RETURN_VALUE type: crash versions: Python 3.6, Python 3.7, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue35193> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
