When FILEMON_SET_FD is used, the filemon handle effectively wraps the passed file. In particular, the handle may be inherited by a child process, or transferred over a unix domain socket, so we must verify that the backing file permits this. Reported by: syzbot+36e6be9e02735fe66ca8@syzkaller.appspotmail.com Reviewed by: emaste MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D34128 |
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filemon_wrapper.c | ||
filemon.c | ||
filemon.h |