syzbot


general protection fault in packet_lookup_frame
Status: fixed on 2019/09/06 20:45
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 32d3182c net/packet: fix race in tpacket_snd()
First crash: 115d, last: 115d

Cause bisection: the bug happens on the oldest tested release
Crash: BUG: unable to handle kernel NULL pointer dereference in packet_lookup_frame (log)
Repro: C syz .config
similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.14 general protection fault in packet_lookup_frame C fix 1 115d 115d 1/1 fixed on 2019/12/04 13:46
linux-4.19 general protection fault in packet_lookup_frame C fix 1 115d 115d 1/1 fixed on 2019/12/04 13:46

Sample crash report:

Crashes (7):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-selinux-root 2019/08/13 21:36 upstream ee1c7bd3 ef801a3e .config log report syz C ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, maximmi@mellanox.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, pabeni@redhat.com, songliubraving@fb.com, tglx@linutronix.de, vincent.whitchurch@axis.com, willemb@google.com, yhs@fb.com, yuehaibing@huawei.com
ci-upstream-kasan-gce-root 2019/08/14 01:39 upstream ee1c7bd3 ef801a3e .config log report syz C ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, maximmi@mellanox.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, pabeni@redhat.com, songliubraving@fb.com, tglx@linutronix.de, vincent.whitchurch@axis.com, willemb@google.com, yhs@fb.com, yuehaibing@huawei.com
ci-upstream-kasan-gce 2019/08/13 21:23 upstream ee1c7bd3 ef801a3e .config log report syz C ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, maximmi@mellanox.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, pabeni@redhat.com, songliubraving@fb.com, tglx@linutronix.de, vincent.whitchurch@axis.com, willemb@google.com, yhs@fb.com, yuehaibing@huawei.com
ci-upstream-kasan-gce-386 2019/08/13 21:59 upstream ee1c7bd3 ef801a3e .config log report syz C ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, maximmi@mellanox.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, pabeni@redhat.com, songliubraving@fb.com, tglx@linutronix.de, vincent.whitchurch@axis.com, willemb@google.com, yhs@fb.com, yuehaibing@huawei.com
ci-upstream-net-this-kasan-gce 2019/08/13 21:16 net bb0ce4c1 ef801a3e .config log report syz C ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, maximmi@mellanox.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, pabeni@redhat.com, songliubraving@fb.com, tglx@linutronix.de, vincent.whitchurch@axis.com, willemb@google.com, yhs@fb.com, yuehaibing@huawei.com
ci-upstream-net-kasan-gce 2019/08/13 21:15 net-next 53f6f391 ef801a3e .config log report syz C ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, maximmi@mellanox.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, pabeni@redhat.com, songliubraving@fb.com, tglx@linutronix.de, vincent.whitchurch@axis.com, willemb@google.com, yhs@fb.com, yuehaibing@huawei.com
ci-upstream-linux-next-kasan-gce-root 2019/08/13 22:12 linux-next 0b821f0a ef801a3e .config log report syz C ast@kernel.org, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, edumazet@google.com, kafai@fb.com, linux-kernel@vger.kernel.org, maximmi@mellanox.com, netdev@vger.kernel.org, nhorman@tuxdriver.com, pabeni@redhat.com, songliubraving@fb.com, tglx@linutronix.de, vincent.whitchurch@axis.com, willemb@google.com, yhs@fb.com, yuehaibing@huawei.com