On Tue, 03-May-2005 at 04:10:18 -0700, Colin Percival wrote: > Danny Braniss wrote: > > BTW, this, the MNT_NOEXEC, uncovered, IMHO, a bug in libexec/rtld-elf/rtld.c > > where it's now checking for MNT_NOEXEC, but only if LD_LIBRARY_PATH is set! > > This is not a bug. Checking for MNT_NOEXEC adds a cost in performance, and > it is not necessary if LD_LIBRARY_PATH, LD_PRELOAD, and LD_LIBMAP* are not > set -- based on the assumption, that is, that no (sane) sysadmin would ever > put a MNT_NOEXEC-mounted filesystem into the default library path. > > I agree that it's a bit counter-intuitive, but it's really just a case of > saving time by not checking for something which should Never Happen. :-) > > Colin Percival > PS. Bravo to Ian for tracking down the bug in NFS -- I spent a while looking You may want to look at the PR mentioned in the commit message to see who did this initially. I just changed it at a different place of the kernel (the same way as it was done in 4.x). -Andre > for this, but got hopelessly lost. > _______________________________________________ > freebsd-stable_at_freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-stable > To unsubscribe, send any mail to "freebsd-stable-unsubscribe_at_freebsd.org" -- An NT server can be run by an idiot, and usually is.Received on Fri May 20 2005 - 17:46:46 UTC
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