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: 259d, last: 8d07h

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 Cause bisect Fix bisect Count Last Reported Patched Status
android-49 KASAN: use-after-free Read in __queue_work C 19 977d 739d 0/3 public: reported C repro on 2019/04/13 00:00
linux-4.19 KASAN: use-after-free Read in __queue_work syz 5 9d05h 261d 0/1 upstream: reported syz repro on 2020/08/03 04:16
linux-4.14 KASAN: use-after-free Read in __queue_work syz 4 8d00h 260d 0/1 upstream: reported syz repro on 2020/08/03 15:06
upstream KASAN: use-after-free Read in __queue_work syz 2 1308d 1272d 0/22 closed as invalid on 2017/10/27 09:34
upstream KASAN: use-after-free Read in __queue_work (2) C done done 577 663d 1017d 16/22 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 Title
ci-upstream-kasan-gce-root 2021/04/13 01:51 upstream 89698bec 80a06902 .config log report syz
ci-upstream-kasan-gce-root 2021/03/13 10:45 upstream f296bfd5 80a06902 .config log report syz
ci-upstream-kasan-gce-root 2021/01/20 08:21 upstream 45dfb8a5 80a06902 .config log report syz
ci-upstream-kasan-gce-root 2020/12/21 06:38 upstream e37b12e4 80a06902 .config log report syz
ci-upstream-kasan-gce-root 2020/11/13 09:26 upstream 585e5b17 80a06902 .config log report syz
ci-upstream-kasan-gce-root 2020/10/14 03:52 upstream b5fc7a89 80a06902 .config log report syz
ci-upstream-kasan-gce-root 2020/09/14 00:40 upstream 856deb86 80a06902 .config log report syz
Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-root 2020/08/04 21:23 upstream c0842fbc 80a06902 .config log report syz
ci-upstream-linux-next-kasan-gce-root 2020/08/10 16:15 linux-next f80535b9 70301872 .config log report syz
ci-upstream-kasan-gce-selinux-root 2020/11/14 20:47 upstream f01c30de 1bf9a662 .config log report info