syzbot


general protection fault in nexthop_is_blackhole
Status: fixed on 2020/11/16 12:12
Reported-by: syzbot+b2c08a2f5cfef635cc3a@syzkaller.appspotmail.com
Fix commit: eeaac3634ee0 net: nexthop: don't allow empty NHA_GROUP
First crash: 517d, last: 517d

Cause bisection: introduced by (bisect log) :
commit de47c5d8e11dda678e4354eeb4235e58e92f7cd2
Author: Hariprasad Kelam <hariprasad.kelam@gmail.com>
Date: Sat Jun 8 09:00:50 2019 +0000

  af_key: make use of BUG_ON macro

Crash: general protection fault in batadv_iv_ogm_queue_add (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit eeaac3634ee0e3f35548be35275efeca888e9b23
Author: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Date: Sat Aug 22 12:06:36 2020 +0000

  net: nexthop: don't allow empty NHA_GROUP

Patch testing requests:
Created Duration User Patch Repo Result
2020/09/02 05:14 17m anant.thazhemadam@gmail.com https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master OK
2020/08/26 20:45 16m anmol.karan123@gmail.com upstream OK

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/08/23 17:58 upstream c3d8f220d012 cef5ae68 .config log report syz C