syzbot


KASAN: use-after-free Read in __queue_work (3)
Status: upstream: reported syz repro on 2020/08/08 21:27
Reported-by: syzbot+77e5e02c6c81136cdaff@syzkaller.appspotmail.com
First crash: 55d, last: 15d

Cause bisection: the issue happens on the oldest tested release (bisect log)
Crash: WARNING in sysfs_warn_dup (log)
Repro: syz .config
similar bugs (5):
Kernel Title Repro Bisected Count Last Reported Patched Status
android-49 KASAN: use-after-free Read in __queue_work C 19 773d 535d 0/3 public: reported C repro on 2019/04/13 00:00
linux-4.19 KASAN: use-after-free Read in __queue_work syz 3 8d01h 57d 0/1 upstream: reported syz repro on 2020/08/03 04:16
linux-4.14 KASAN: use-after-free Read in __queue_work syz 2 2d12h 56d 0/1 upstream: reported syz repro on 2020/08/03 15:06
upstream KASAN: use-after-free Read in __queue_work syz 2 1103d 1067d 0/17 closed as invalid on 2017/10/27 09:34
upstream KASAN: use-after-free Read in __queue_work (2) C cause+fix 577 459d 813d 16/17 fixed on 2020/01/08 01:07
Patch testing requests:
Created Duration User Patch Repo Result
2020/09/02 05:15 16m anant.thazhemadam@gmail.com https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master report log

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info
ci-upstream-kasan-gce-root 2020/09/14 00:40 upstream 856deb86 80a06902 .config log report syz
Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-root 2020/08/04 21:23 upstream c0842fbc 80a06902 .config log report syz davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org
ci-upstream-linux-next-kasan-gce-root 2020/08/10 16:15 linux-next f80535b9 70301872 .config log report syz davem@davemloft.net, johan.hedberg@gmail.com, kuba@kernel.org, linux-bluetooth@vger.kernel.org, linux-kernel@vger.kernel.org, marcel@holtmann.org, netdev@vger.kernel.org