On Mon 03-03-14 20:13:00, poma wrote: > On 21.02.2014 16:48, Jan Kara wrote: > > On Fri 21-02-14 14:08:03, Richard Weinberger wrote: > >> On Fri, Feb 21, 2014 at 12:40 PM, poma <pomidorabelisima@xxxxxxxxx> wrote: > >>> > >>> Affected kernels - 3.14.0-0.rc3*: > >>> > >>> - 3.14.0-0.rc3.git0.1 > >>> http://koji.fedoraproject.org/koji/buildinfo?buildID=498711 > >>> > >>> - 3.14.0-0.rc3.git0.7 based on 3.14.0-0.rc3.git0.1 > >>> > >>> - 3.14.0-0.rc3.git2.1 > >>> http://koji.fedoraproject.org/koji/buildinfo?buildID=499061 > >>> > >>> - 3.14.0-0.rc3.git5.1 > >>> http://koji.fedoraproject.org/koji/buildinfo?buildID=499636 > >>> > >>> Memtest86+ 4.20 - OK > >>> http://goo.gl/1nm1nV > >>> > >>> RHBZ > >>> https://bugzilla.redhat.com/show_bug.cgi?id=1067919 > >>> > >>> messages-Oops-es-3.14.0-0.rc3 > >>> https://bugzilla.redhat.com/attachment.cgi?id=865926 > >> > >> Maybe commits 7053aee26a3548ebaba046ae2e52396ccf56ac6c (fsnotify: do > >> not share events between notification groups) > >> and 85816794240b9659e66e4d9b0df7c6e814e5f603 (fanotify: Fix use after > >> free for permission events) introduced this regression. > > So the immediate problem seems to be that event->tgid is 0xffffffff > > instead of a pointer. I don't see how this could be use after free and we > > unconditionally initialize event->tgid to something sensible. Hum, but if > > it is an overflow event, we are in a trouble since that doesn't have ->tgid > > field at all so we read random crap that happens to be beyond the event > > structure. Actually there seem to be more problems in the handling of > > overflow event so I better add that to my testing (both for fanotify and > > inotify). I'll work on the fix. Thanks for report! > > > > Honza > > > > The test was successfully completed with the '3.14-rc5'. > Thanks guys, Jan for the patchwork! Thanks for testing and letting me know! Honza -- Jan Kara <jack@xxxxxxx> SUSE Labs, CR _______________________________________________ kernel mailing list kernel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kernel