syzbot


INFO: task hung in genl_rcv_msg
Status: fixed on 2020/02/16 23:53
Reported-by: syzbot+35aba01a785cf6164fa4@syzkaller.appspotmail.com
Fix commit: 24070b40926b tcp: clear tp->total_retrans in tcp_disconnect()
First crash: 733d, last: 733d

Fix bisection: fixed by (bisect log) :
commit 24070b40926b42c35ca0649f44711cad5da0cf96
Author: Eric Dumazet <edumazet@google.com>
Date: Fri Jan 31 17:14:47 2020 +0000

  tcp: clear tp->total_retrans in tcp_disconnect()

similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 INFO: task hung in genl_rcv_msg syz error 14 556d 993d 0/1 upstream: reported syz repro on 2019/05/02 15:34
upstream INFO: task hung in genl_rcv_msg syz done error 640 1d03h 1192d 0/22 upstream: reported syz repro on 2018/10/15 08:06
linux-4.14 INFO: task hung in genl_rcv_msg (2) 6 428d 617d 0/1 auto-closed as invalid on 2021/03/17 23:44

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-linux-4-14 2020/01/17 19:33 linux-4.14.y c04fc6fa5c96 3de7aabb .config log report syz
ci2-linux-4-14 2020/01/17 16:42 linux-4.14.y c04fc6fa5c96 3de7aabb .config log report