syzbot


BUG: unable to handle kernel paging request in bpf_trace_run2
Status: fixed on 2021/04/13 19:14
Reported-by: syzbot+cc36fd07553c0512f5f7@syzkaller.appspotmail.com
Fix commit: befe6d946551 tracepoint: Do not fail unregistering a probe due to memory failure
First crash: 439d, last: 276d

Cause bisection: introduced by (bisect log) :
commit 58956317c8de52009d1a38a721474c24aef74fe7
Author: David Ahern <dsahern@gmail.com>
Date: Fri Dec 7 20:24:57 2018 +0000

  neighbor: Improve garbage collection

Crash: BUG: corrupted list in neigh_mark_dead (log)
Repro: C syz .config

Fix bisection: fixed by (bisect log) :
commit befe6d946551d65cddbd32b9cb0170b0249fd5ed
Author: Steven Rostedt (VMware) <rostedt@goodmis.org>
Date: Wed Nov 18 14:34:05 2020 +0000

  tracepoint: Do not fail unregistering a probe due to memory failure

similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-54 BUG: unable to handle kernel paging request in bpf_trace_run2 C 4 281d 436d 0/1 upstream: reported C repro on 2020/09/22 18:31

Sample crash report:

Crashes (10):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-bpf-kasan-gce 2020/09/22 19:11 bpf 1245008122d7 3e8f6c27 .config log report syz C
ci-upstream-bpf-kasan-gce 2021/01/05 08:05 bpf 04901aab40ea 2a28ff1f .config log report info
ci-upstream-bpf-kasan-gce 2020/11/09 20:08 bpf 4e0396c59559 64069d48 .config log report info
ci-upstream-bpf-kasan-gce 2020/10/29 09:48 bpf c66dca98a24c f24824d3 .config log report info
ci-upstream-bpf-kasan-gce 2020/10/27 07:22 bpf 435ccfa894e3 8b3eaf58 .config log report info
ci-upstream-bpf-kasan-gce 2020/10/08 12:17 bpf d82a532a6115 1880b4a9 .config log report info
ci-upstream-bpf-kasan-gce 2020/09/22 18:49 bpf 1245008122d7 3e8f6c27 .config log report info
ci-upstream-bpf-next-kasan-gce 2021/01/05 08:04 bpf-next 482ec343f40a 2a28ff1f .config log report info
ci-upstream-bpf-next-kasan-gce 2020/10/02 07:46 bpf-next 6208689fb3e6 9602ddf4 .config log report info
ci-upstream-bpf-next-kasan-gce 2020/09/19 21:25 bpf-next 70b971118e07 53ce8104 .config log report info