syzbot


BUG: corrupted list in kobject_add_internal
Status: fixed on 2020/11/16 12:12
Reported-by: syzbot+dd768a260f7358adbaf9@syzkaller.appspotmail.com
Fix commit: a46b7ed4 Bluetooth: Fix auto-creation of hci_conn at Conn Complete event
First crash: 250d, last: 183d

Cause bisection: introduced by (bisect log) :
commit 4f40afc6c76451daff7d0dcfc8a3d113ccf65bfc
Author: Abhishek Pandit-Subedi <abhishekpandit@chromium.org>
Date: Wed Mar 11 15:54:01 2020 +0000

  Bluetooth: Handle BR/EDR devices during suspend

Crash: BUG: corrupted list in kobject_add_internal (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit a46b7ed4d52d09bd6c7ab53b2217d04fc2f02c65
Author: Sonny Sasaka <sonnysasaka@chromium.org>
Date: Fri Aug 14 19:09:09 2020 +0000

  Bluetooth: Fix auto-creation of hci_conn at Conn Complete event

similar bugs (3):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream BUG: corrupted list in kobject_add_internal (2) 1 90d 86d 0/22 upstream: reported on 2021/01/14 16:40
linux-4.19 BUG: corrupted list in kobject_add_internal C 2 9d06h 106d 0/1 upstream: reported C repro on 2020/12/26 09:29
linux-4.14 BUG: corrupted list in kobject_add_internal 1 160d 160d 0/1 auto-closed as invalid on 2021/03/02 15:06
Patch testing requests:
Created Duration User Patch Repo Result
2020/08/23 00:24 17m coiby.xu@gmail.com https://github.com/coiby/linux.git syzbot9 OK

Sample crash report:

Crashes (9):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/08/07 13:04 upstream d6efb3ac cb436c69 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/05 17:31 upstream 442489c2 b7129355 .config log report syz C
ci-upstream-kasan-gce-root 2020/08/05 12:53 upstream 442489c2 b7129355 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/08/03 16:45 upstream 5a30a789 196277c4 .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/08/03 16:45 upstream 5a30a789 196277c4 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/08/10 02:50 linux-next 01830e6c 70301872 .config log report syz C
ci-upstream-linux-next-kasan-gce-root 2020/08/07 12:38 linux-next 01830e6c cb436c69 .config log report syz C
ci-upstream-kasan-gce-root 2020/08/08 09:12 upstream 5631c5e0 ff51e522 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/08/05 19:55 linux-next 01830e6c b7129355 .config log report