New submission from Yilei Yang <yileiya...@gmail.com>:
The uid & gid variable from https://github.com/python/cpython/blob/9833bb91e4d5c2606421d9ec2085f5c2dfb6f72c/Modules/_posixsubprocess.c#L737-L738 can be passed to the `do_fork_exec` call below uninitialized and cause msan to report use-of-uninitialized-value errors. Those variables are guarded by call_setgid/call_setuid so they aren't really used uninitialized in practice. It would just be great if we can make it msan clean. Ideally, the long list of do_fork_exec arguments could also be rewritten in a struct. ---------- components: Library (Lib) messages: 414320 nosy: gregory.p.smith, yilei priority: normal severity: normal status: open title: use of uninitialized value with msan from subprocess_fork_exec type: enhancement versions: Python 3.10, Python 3.11, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46899> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
