On Wed, Aug 22, 2012 at 10:21:07AM +0800, Junxiao Bi wrote: > If one kernel path is using KM_USER0 slot and is interrupted by > the oprofile nmi, then in copy_from_user_nmi(), the KM_USER0 slot > will be overwrite and cleared to zero at last, when the control > return to the original kernel path, it will access an invalid > virtual address and trigger a crash. > > Cc: Robert Richter <[email protected]> > Cc: Greg KH <[email protected]> > Cc: [email protected] > Signed-off-by: Junxiao Bi <[email protected]> > > Hi, Please review this patch. > > It is for linux-2.6.32.y stable branch not for mainline.
BTW, is there a mainline equivalent commit ID ? A mainline ID is normally needed to merge anything into stable branches to ensure that no fix is lost when people upgrade. If this fix is part of another mainline commit, that's fine too. Thanks, Willy -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
