syzbot


WARNING in bpf_prog_kallsyms_add
Status: fixed on 2019/09/06 20:45
Reported-by: syzbot+987e48d84abddbe2506d@syzkaller.appspotmail.com
Fix commit: c751798a bpf: fix use after free in prog symbol exposure
First crash: 262d, last: 59d
Bisection: introduced by (bisect log):

commit 7607dd35fc34893214284cca740d015154d20452
Author: Ido Schimmel <idosch@mellanox.com>
Date: Mon Jul 17 12:15:30 2017 +0000

  mlxsw: spectrum: Trap IPv4 packets with Router Alert option

Tree: upstream
Crash: WARNING: refcount bug in addrconf_del_dad_work (log)
Repro: syz .config
Bisection: fixed by (bisect log):

commit 06ee7115b0d1742de745ad143fb5e06d77d27fba
Author: Alexei Starovoitov <ast@kernel.org>
Date: Tue Apr 2 04:27:40 2019 +0000

  bpf: add verifier stats and log_level bit 2

Tree: upstream

Sample crash report:

All crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-root 2019/01/03 22:01 upstream 645ff1e8 66fcd29b .config log report syz ast@kernel.org, daniel@iogearbox.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-bpf-next-kasan-gce 2019/07/26 08:50 bpf-next 192f0f8e 732bc5a0 .config log report ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, songliubraving@fb.com, xdp-newbies@vger.kernel.org, yhs@fb.com