syzbot


KASAN: vmalloc-out-of-bounds Read in bpf_trace_run3
Status: upstream: reported C repro on 2020/11/02 11:54
Reported-by: syzbot+d29e58bb557324e55e5e@syzkaller.appspotmail.com
First crash: 80d, last: 2d11h

Cause bisection: introduced by (bisect log) :
commit 9df1c28bb75217b244257152ab7d788bb2a386d0
Author: Matt Mullins <mmullins@fb.com>
Date: Fri Apr 26 18:49:47 2019 +0000

  bpf: add writable context for raw tracepoints

Crash: BUG: unable to handle kernel paging request in __bpf_trace_sched_switch (log)
Repro: C syz .config

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info
ci-upstream-bpf-kasan-gce 2021/01/17 01:04 bpf e23a8d00 a6e3ac3b .config log report syz C
ci-upstream-bpf-kasan-gce 2020/12/17 21:04 bpf 1a3449c1 a6e3ac3b .config log report syz C
Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-bpf-kasan-gce 2020/10/30 17:26 bpf 080b6f40 a6e3ac3b .config log report syz C andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@chromium.org, kuba@kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, netdev@vger.kernel.org, rostedt@goodmis.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-bpf-kasan-gce 2020/10/30 17:09 bpf 080b6f40 a6e3ac3b .config log report info andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@chromium.org, kuba@kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, netdev@vger.kernel.org, rostedt@goodmis.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-bpf-next-kasan-gce 2020/11/13 02:38 bpf-next c3653879 16fca0c8 .config log report info andrii@kernel.org, ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, kafai@fb.com, kpsingh@chromium.org, kuba@kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, netdev@vger.kernel.org, rostedt@goodmis.org, songliubraving@fb.com, yhs@fb.com