syzbot


KASAN: slab-out-of-bounds Write in setup_udp_tunnel_sock (3)
Status: internal: reported on 2020/05/28 17:34
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: d9a81a22 l2tp: add sk_family checks to l2tp_validate_socket
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-gce-leak ci-upstream-kasan-gce ci-upstream-kasan-gce-386 ci-upstream-kasan-gce-root ci-upstream-kasan-gce-selinux-root ci-upstream-kasan-gce-smack-root ci-upstream-linux-next-kasan-gce-root ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 37d, last: 37d
similar bugs (4):
Kernel Title Repro Bisected Count Last Reported Patched Status
linux-4.19 KASAN: slab-out-of-bounds Write in setup_udp_tunnel_sock C fix 1 163d 163d 1/1 fixed on 2020/02/22 11:44
linux-4.14 KASAN: slab-out-of-bounds Write in setup_udp_tunnel_sock C fix 1 162d 162d 1/1 fixed on 2020/02/23 20:58
upstream KASAN: slab-out-of-bounds Write in setup_udp_tunnel_sock C 4 851d 851d 4/17 fixed on 2018/03/23 18:14
upstream KASAN: slab-out-of-bounds Write in setup_udp_tunnel_sock (2) C cause 8 163d 165d 16/17 fixed on 2020/02/18 14:31

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-net-kasan-gce 2020/05/28 17:30 net-next 50ce4c09 0d951763 .config log report davem@davemloft.net, kuba@kernel.org, kuznet@ms2.inr.ac.ru, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, yoshfuji@linux-ipv6.org