[Bug]: many open() without O_CLOEXEC #9753
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main branch
Description
In multithreaded programs, O_CLOEXEC for all file descriptors is a must. I just searched for O_RDONLY and O_RDWR and found few places.
Actually, I searched for open("/etc/ssl/certs/ca-bundle.crt", O_RDONLY), but found other places in sources.
Reproduction steps
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