syzbot


BUG: unable to handle kernel paging request in bpf_lru_populate
Status: fixed on 2021/03/10 01:49
Reported-by: syzbot+ec2234240c96fdd26b93@syzkaller.appspotmail.com
Fix commit: e1868b9e36d0 bpf: Avoid overflows involving hash elem_size
First crash: 360d, last: 350d

Cause bisection: introduced by (bisect log) :
commit b93ef089d35c3386dd197e85afb6399bbd54cfb3
Author: Martin KaFai Lau <kafai@fb.com>
Date: Mon Nov 16 20:01:13 2020 +0000

  bpf: Fix the irq and nmi check in bpf_sk_storage for tracing usage

Crash: BUG: sleeping function called from invalid context in sta_info_move_state (log)
Repro: C syz .config

Sample crash report:

Crashes (12):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-kasan-gce 2020/12/06 03:16 net-next bcd684aace34 50503117 .config log report syz C
ci-upstream-bpf-next-kasan-gce 2020/12/05 22:47 bpf-next 34da87213d3d 50503117 .config log report syz C
ci-upstream-net-kasan-gce 2020/12/13 11:52 net-next 00f7763a26cb bca53db9 .config log report info
ci-upstream-net-kasan-gce 2020/12/11 17:43 net-next 91163f821436 ba24ffcd .config log report info
ci-upstream-net-kasan-gce 2020/12/11 15:37 net-next 91163f821436 ba24ffcd .config log report info
ci-upstream-net-kasan-gce 2020/12/10 14:19 net-next a7105e3472bf f900b48c .config log report info
ci-upstream-net-kasan-gce 2020/12/08 19:36 net-next 8e98387b16b8 a7f7f4a4 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/12/07 22:00 bpf-next 34da87213d3d 1190297f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/12/07 05:12 bpf-next 34da87213d3d c521566d .config log report info
ci-upstream-bpf-next-kasan-gce 2020/12/06 23:07 bpf-next 34da87213d3d c521566d .config log report info
ci-upstream-bpf-next-kasan-gce 2020/12/05 22:23 bpf-next 34da87213d3d 50503117 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/12/03 11:41 bpf-next 97306be45fbe e6b0d314 .config log report info