syzbot


KASAN: use-after-free Read in htab_map_alloc
Status: fixed on 2021/03/10 01:48
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 8aaeed81fcb9 bpf: Fix error path in htab_map_alloc()
First crash: 394d, last: 391d

Cause bisection: introduced by (bisect log) :
commit c50eb518e262fa06bd334e6eec172eaf5d7a5bd9
Author: Song Liu <songliubraving@fb.com>
Date: Thu Oct 29 07:19:24 2020 +0000

  bpf: Use separate lockdep class for each hashtab

Crash: WARNING in htab_map_alloc (log)
Repro: C syz .config

Sample crash report:

Crashes (38):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-next-kasan-gce 2020/11/01 09:27 bpf-next cb5dc5b062a9 8bc4594f .config log report syz C
ci-upstream-bpf-next-kasan-gce 2020/11/01 05:15 bpf-next cb5dc5b062a9 8bc4594f .config log report syz C
ci-upstream-bpf-next-kasan-gce 2020/10/31 20:35 bpf-next cb5dc5b062a9 8bc4594f .config log report syz C
ci-upstream-bpf-next-kasan-gce 2020/10/31 17:03 bpf-next cb5dc5b062a9 8bc4594f .config log report syz C
ci-upstream-bpf-next-kasan-gce 2020/10/31 03:29 bpf-next cb5dc5b062a9 18e33098 .config log report syz C
ci-upstream-bpf-next-kasan-gce 2020/10/30 23:35 bpf-next cb5dc5b062a9 a6e3ac3b .config log report syz C
ci-upstream-bpf-next-kasan-gce 2020/11/02 08:31 bpf-next cb5dc5b062a9 8bc4594f .config log report syz
ci-upstream-bpf-next-kasan-gce 2020/11/01 23:52 bpf-next cb5dc5b062a9 8bc4594f .config log report syz
ci-upstream-bpf-next-kasan-gce 2020/10/31 06:20 bpf-next cb5dc5b062a9 18e33098 .config log report syz
ci-upstream-bpf-next-kasan-gce 2020/10/31 01:52 bpf-next cb5dc5b062a9 18e33098 .config log report syz
ci-upstream-bpf-next-kasan-gce 2020/11/02 22:00 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/02 21:42 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/02 21:19 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/02 17:42 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/02 14:07 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/02 11:52 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/02 09:16 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/02 08:54 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/02 08:46 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/01 21:08 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/01 15:55 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/01 15:16 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/01 15:00 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/01 11:14 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/01 08:37 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/01 05:26 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/01 03:59 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/11/01 00:03 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/31 21:27 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/31 18:48 bpf-next cb5dc5b062a9 8bc4594f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/31 11:09 bpf-next cb5dc5b062a9 18e33098 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/31 09:39 bpf-next cb5dc5b062a9 18e33098 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/31 08:06 bpf-next cb5dc5b062a9 18e33098 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/31 03:25 bpf-next cb5dc5b062a9 18e33098 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/31 02:52 bpf-next cb5dc5b062a9 18e33098 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/31 00:35 bpf-next cb5dc5b062a9 18e33098 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/31 00:21 bpf-next cb5dc5b062a9 18e33098 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/30 23:18 bpf-next cb5dc5b062a9 a6e3ac3b .config log report info