syzbot


KASAN: use-after-free Read in io_async_task_func
Status: fixed on 2020/09/16 22:51
Reported-by: syzbot+9b260fc33297966f5a8e@syzkaller.appspotmail.com
Fix commit: 6d816e088c35 io_uring: hold 'ctx' reference around task_work queue + execute
First crash: 644d, last: 644d

Cause bisection: failed (bisect log)
duplicates (2):
Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
KASAN: use-after-free Read in idr_for_each C 4 623d 641d 0/22 closed as dup on 2020/08/13 18:43
KASAN: use-after-free Read in __io_req_task_submit C error 1 643d 643d 0/22 closed as dup on 2020/08/12 02:44

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/08/11 03:01 upstream fc80c51fd4b2 7adc7b65 .config log report syz