syzbot


general protection fault in __sock_release (3)
Status: upstream: reported syz repro on 2020/08/31 19:38
Reported-by: syzbot+0cd67947050ba830202c@syzkaller.appspotmail.com
First crash: 426d, last: 419d

Cause bisection: introduced by (bisect log) :
commit a9ed4a6560b8562b7e2e2bed9527e88001f7b682
Author: Marc Zyngier <maz@kernel.org>
Date: Wed Aug 19 16:12:17 2020 +0000

  epoll: Keep a reference on files added to the check list

Crash: BUG: unable to handle kernel NULL pointer dereference in __sock_release (log)
Repro: syz .config

Fix bisection: fixed by (bisect log) [no-op commit]:
commit 4b04e0decd2518e54e3f371abf3d883b3198663d
Author: Sumanth Korikkar <sumanthk@linux.ibm.com>
Date: Mon Aug 17 07:27:54 2020 +0000

  perf test: Fix basic bpf filtering test

similar bugs (4):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 general protection fault in __sock_release syz done 8 414d 426d 1/1 fixed on 2020/10/09 08:27
linux-4.14 general protection fault in __sock_release syz done 12 414d 426d 1/1 fixed on 2020/10/09 20:44
upstream general protection fault in __sock_release 1 1196d 1196d 9/22 fixed on 2018/08/07 13:43
upstream general protection fault in __sock_release (2) 20 863d 1002d 0/22 auto-closed as invalid on 2019/10/25 08:42

Sample crash report:

Crashes (21):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2020/08/30 20:03 upstream 1127b219ce94 d5a3ae1f .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/08/28 21:51 upstream 15bc20c6af4c d5a3ae1f .config log report syz
ci-upstream-kasan-gce-root 2020/08/28 08:11 upstream 15bc20c6af4c 816e0689 .config log report syz
ci-upstream-kasan-gce 2020/08/28 06:57 upstream 15bc20c6af4c 816e0689 .config log report syz
ci-upstream-kasan-gce 2020/08/27 19:39 upstream 15bc20c6af4c 816e0689 .config log report syz
ci-upstream-kasan-gce-root 2020/08/27 19:31 upstream 15bc20c6af4c 816e0689 .config log report syz
ci-upstream-kasan-gce-386 2020/08/28 06:41 upstream 15bc20c6af4c 816e0689 .config log report syz
ci-upstream-kasan-gce-386 2020/08/27 19:41 upstream 15bc20c6af4c 816e0689 .config log report syz
ci-upstream-net-this-kasan-gce 2020/09/04 04:05 net 8b4a11c67da5 abf9ba4f .config log report syz
ci-upstream-net-this-kasan-gce 2020/09/03 22:05 net 8b4a11c67da5 abf9ba4f .config log report syz
ci-upstream-net-this-kasan-gce 2020/09/03 18:52 net 8b4a11c67da5 abf9ba4f .config log report syz
ci-upstream-net-this-kasan-gce 2020/08/29 14:38 net c8146fe292a7 d5a3ae1f .config log report syz
ci-upstream-net-this-kasan-gce 2020/08/28 06:37 net af8ea1111346 816e0689 .config log report syz
ci-upstream-net-kasan-gce 2020/09/04 04:18 net-next 22b330b622e3 abf9ba4f .config log report syz
ci-upstream-net-kasan-gce 2020/08/28 19:42 net-next 0baf01942d3d d5a3ae1f .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/08/29 06:36 linux-next b36c969764ab d5a3ae1f .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/08/27 21:05 linux-next 88abac0b753d 816e0689 .config log report syz
ci-upstream-kasan-gce-386 2020/08/30 05:30 upstream 1127b219ce94 d5a3ae1f .config log report
ci-upstream-net-this-kasan-gce 2020/09/04 00:15 net 8b4a11c67da5 abf9ba4f .config log report
ci-upstream-linux-next-kasan-gce-root 2020/09/03 00:03 linux-next 4442749a2031 abf9ba4f .config log report
ci-upstream-linux-next-kasan-gce-root 2020/09/01 23:45 linux-next b36c969764ab abf9ba4f .config log report