Hi! > From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > > commit f7e6b19bc76471ba03725fe58e0c218a3d6266c3 upstream. > > When doing a "write" ioctl call, properly check that we have permissions > to do so before copying anything from userspace or anything else so we > can "fail fast". This includes also covering the MEMWRITE ioctl which > previously missed checking for this. > + /* "safe" commands */ > + case MEMGETREGIONCOUNT: I wonder if MEMSETBADBLOCK, MEMLOCK/MEMUNLOCK, BLKPG, OTPLOCK and MTDFILEMODE should be in the list of "safe" commands? Sounds like they can do at least as much damage as average MEMWRITE... Best regards, Pavel -- DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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