WARNING in bpf_prog_kallsyms_add
Status: fixed on 2019/09/06 20:45
Fix commit: c751798a bpf: fix use after free in prog symbol exposure
First crash: 661d, last: 458d

Cause bisection: introduced by (bisect log) :
commit 7607dd35fc34893214284cca740d015154d20452
Author: Ido Schimmel <>
Date: Mon Jul 17 12:15:30 2017 +0000

  mlxsw: spectrum: Trap IPv4 packets with Router Alert option

Crash: WARNING: refcount bug in addrconf_del_dad_work (log)
Repro: syz .config

Fix bisection: fixed by (bisect log) :
commit 06ee7115b0d1742de745ad143fb5e06d77d27fba
Author: Alexei Starovoitov <>
Date: Tue Apr 2 04:27:40 2019 +0000

  bpf: add verifier stats and log_level bit 2

Patch testing requests:
Created Duration User Patch Repo Result
2019/08/26 08:08 17m bpf OK

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-root 2019/01/03 22:01 upstream 645ff1e8 66fcd29b .config log report syz,,,
ci-upstream-bpf-next-kasan-gce 2019/07/26 08:50 bpf-next 192f0f8e 732bc5a0 .config log report,,,,,,,,,,,,