syzbot


KASAN: null-ptr-deref Read in do_con_trol
Status: closed as dup on 2020/07/20 22:49
Reported-by: syzbot+70b2d05eec48639a904e@syzkaller.appspotmail.com
First crash: 346d, last: 282d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: C syz .config

Fix bisection: failed (bisect log)
Duplicate of (1):
Title Repro Cause bisect Fix bisect Count Last Reported
general protection fault in do_con_write C done 10703 182d 417d
similar bugs (2):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 KASAN: null-ptr-deref Read in do_con_trol C done 1 195d 345d 1/1 fixed on 2020/08/12 22:58
linux-4.14 KASAN: null-ptr-deref Read in do_con_trol C inconclusive 1 224d 344d 0/1 upstream: reported C repro on 2020/02/15 00:04

Sample crash report:

Crashes (6):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-selinux-root 2020/02/16 02:20 upstream 829e6944 5d7b90f1 .config log report syz C b.zolnierkie@samsung.com, daniel.vetter@ffwll.ch, ghalat@redhat.com, gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org, lukas@wunner.de, okash.khawaja@gmail.com, oleksandr@redhat.com, sam@ravnborg.org
ci-upstream-kasan-gce-root 2020/02/14 18:36 upstream b19e8c68 5d7b90f1 .config log report syz C daniel.vetter@ffwll.ch, ghalat@redhat.com, gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org, lukas@wunner.de, maarten.lankhorst@linux.intel.com, okash.khawaja@gmail.com, oleksandr@redhat.com, sam@ravnborg.org
ci-upstream-kasan-gce 2020/02/13 08:32 upstream f2850dd5 84f4fc8a .config log report syz C daniel.vetter@ffwll.ch, ghalat@redhat.com, gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org, lukas@wunner.de, okash.khawaja@gmail.com, oleksandr@redhat.com, sam@ravnborg.org
ci-upstream-kasan-gce-386 2020/02/13 08:41 upstream f2850dd5 84f4fc8a .config log report syz C daniel.vetter@ffwll.ch, ghalat@redhat.com, gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org, lukas@wunner.de, okash.khawaja@gmail.com, oleksandr@redhat.com, sam@ravnborg.org
ci-upstream-linux-next-kasan-gce-root 2020/02/13 07:53 linux-next 51d5d207 84f4fc8a .config log report syz C daniel.vetter@ffwll.ch, ghalat@redhat.com, gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org, lukas@wunner.de, maarten.lankhorst@linux.intel.com, nico@fluxnic.net, okash.khawaja@gmail.com, sam@ravnborg.org
ci-upstream-linux-next-kasan-gce-root 2020/02/13 05:16 linux-next 51d5d207 84f4fc8a .config log report b.zolnierkie@samsung.com, daniel.vetter@ffwll.ch, ghalat@redhat.com, gregkh@linuxfoundation.org, jslaby@suse.com, linux-kernel@vger.kernel.org, lukas@wunner.de, nico@fluxnic.net, okash.khawaja@gmail.com, sam@ravnborg.org