syzbot


KASAN: use-after-free Write in put_ucounts
Status: fixed on 2021/11/10 00:50
Reported-by: syzbot+b6e65bd125a05f803d6b@syzkaller.appspotmail.com
Fix commit: 345daff2e994 ucounts: Fix race condition between alloc_ucounts and put_ucounts
First crash: 198d, last: 183d
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream KASAN: use-after-free Write in put_ucounts (2) 1 8d05h 4d05h 0/22 closed as dup on 2022/01/17 08:21

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/07/19 13:59 upstream 2734d6c1b1a0 e6a17580 .config log report info KASAN: use-after-free Write in put_ucounts
ci-upstream-kasan-gce-386 2021/07/08 22:00 upstream 3dbdb38e2869 1b20171a .config log report info KASAN: use-after-free Write in put_ucounts
ci-upstream-kasan-gce-386 2021/07/04 13:25 upstream 3dbdb38e2869 55aa55c2 .config log report info KASAN: use-after-free Write in put_ucounts