On Sat, Jan 30, 2016 at 06:56:00PM +0330, mokhi wrote: > Hi. > in kbd.c there are many places spltty()/splx() used assuming it locks/unlocks. > though there is bug filed for this, and ive asked in #bsddev, Ive > preferred to ask and ensure it from here again. > As these functions are obsoleted now, this assumption is incorrect and > some places we have thread-unsafely which leads to security problems > (and/or for example double-free, etc) > > can i use mutex/spin/lock/unlock under where assumed a lock/unlock by > using spltty()/splx() to patch it?
If other parts of kernel sources, locked by spltty()/splx(), don't interacted by called function and accessed data. Cuurently, in stable, spltty used in 27 files and splx in 101 files. _______________________________________________ freebsd-current@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
