syzbot


KASAN: use-after-free Read in __lock_sock
Status: upstream: reported syz repro on 2018/11/17 07:18
Reported-by: syzbot+9276d76e83e3bcde6c99@syzkaller.appspotmail.com
First crash: 988d, last: 168d

Cause bisection: introduced by (bisect log) :
commit 8f840e47f190cbe61a96945c13e9551048d42cef
Author: Xin Long <lucien.xin@gmail.com>
Date: Thu Apr 14 07:35:33 2016 +0000

  sctp: add the sctp_diag.c file

Crash: possible deadlock in sctp_for_each_endpoint (log)
Repro: syz .config

Fix bisection: failed (bisect log)
similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 KASAN: use-after-free Read in __lock_sock syz done 2 639d 639d 1/1 fixed on 2019/12/18 04:11
linux-4.19 KASAN: use-after-free Read in __lock_sock (2) 1 542d 542d 0/1 auto-closed as invalid on 2020/06/01 06:17
linux-4.14 KASAN: use-after-free Read in __lock_sock syz inconclusive 1 413d 533d 0/1 upstream: reported syz repro on 2020/02/11 04:34

Sample crash report:

Crashes (26):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/02/12 01:01 upstream 0a679e13ea30 4d1ab643 .config log report syz
ci-upstream-kasan-gce-selinux-root 2019/11/03 23:47 upstream 56cfd2507d3e c9610487 .config log report syz
ci-upstream-kasan-gce 2019/10/28 06:15 upstream d6d5df1db6e9 25bb509e .config log report syz
ci-upstream-kasan-gce-selinux-root 2018/12/05 18:31 upstream 0072a0c14d5b ac6c0578 .config log report syz
ci-upstream-net-kasan-gce 2020/03/12 05:45 net-next 314a9cbbfb1d e7caca8e .config log report syz
ci-upstream-linux-next-kasan-gce-root 2018/12/05 19:10 linux-next 442b8cea2477 ac6c0578 .config log report syz
ci-upstream-bpf-next-kasan-gce 2021/02/09 21:38 bpf-next ee5cc0363ea0 2bd9619f .config log report info KASAN: use-after-free Read in __lock_sock
ci-upstream-kasan-gce 2020/02/15 02:13 upstream 2019fc96af22 5d7b90f1 .config log report
ci-upstream-kasan-gce-selinux-root 2019/01/14 21:32 upstream 3719876809e7 ebacf5cb .config log report
ci-upstream-kasan-gce-selinux-root 2018/12/05 17:43 upstream 0072a0c14d5b ac6c0578 .config log report
ci-upstream-kasan-gce-selinux-root 2018/11/16 20:45 upstream e6a2562fe27f b08ee62a .config log report
ci-upstream-kasan-gce 2018/11/14 05:47 upstream ccda4af0f4b9 5f5f6d14 .config log report
ci-upstream-net-this-kasan-gce 2019/06/16 03:26 net ef7bfa84725d 442206d7 .config log report
ci-upstream-net-this-kasan-gce 2019/02/21 00:53 net 9c2054a5cf41 c95f0707 .config log report
ci-upstream-net-this-kasan-gce 2019/02/12 09:08 net 4d73eaee24ff 65a0d619 .config log report
ci-upstream-net-this-kasan-gce 2018/11/14 17:44 net db8ddde766ad 5f5f6d14 .config log report
ci-upstream-net-kasan-gce 2020/02/24 16:57 net-next 2045e158fc7f d801cb02 .config log report
ci-upstream-net-kasan-gce 2020/02/14 08:06 net-next fdfa3a6778b1 5d7b90f1 .config log report
ci-upstream-net-kasan-gce 2020/02/10 19:23 net-next fdfa3a6778b1 18847f55 .config log report
ci-upstream-net-kasan-gce 2019/07/30 19:13 net-next 31cc088a4f5d f28bf2a5 .config log report
ci-upstream-net-kasan-gce 2019/07/26 19:11 net-next 31cc088a4f5d 3e5d1beb .config log report
ci-upstream-net-kasan-gce 2019/04/15 21:35 net-next e62b2fd5d3b4 505ab413 .config log report
ci-upstream-net-kasan-gce 2019/01/21 09:06 net-next 28f9d1a3d4fe fd37a550 .config log report
ci-upstream-net-kasan-gce 2018/12/30 19:21 net-next b71acb0e3721 9942de5f .config log report
ci-upstream-net-kasan-gce 2018/11/14 08:36 net-next 3e536cff3424 5f5f6d14 .config log report
ci-upstream-net-kasan-gce 2018/11/13 07:01 net-next 261501d94e80 74dbb806 .config log report