On 19 Jun 2012, at 19:15, Steven Chamberlain wrote: > On 18/06/12 22:37, Simon L. B. Nielsen wrote: >> Note that this is ONLY for FreeBSD 8.1. Other branches are OK. > > Having seen the correct fix now, I'm starting to wonder if the commit to > RELENG_7_4 was really okay too? > > http://svnweb.freebsd.org/base/releng/7.4/sys/amd64/amd64/trap.c?annotate=236953#l975 > > The inserted code does not appear at the end of the function, like it > does now in all other versions including 8.1 which is the most similar. > > I expect this would at least trap if the exploit was attempted, but then > it would omit the rest of the function, including userret(); would that > have consequences?
From what our "kernel experts" (jhb/kib - sorry can't recall who checked this), it should still work fine in the location it is in for 7.4. -- Simon L. B. Nielsen _______________________________________________ freebsd-security@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-security To unsubscribe, send any mail to "freebsd-security-unsubscr...@freebsd.org"
