syzbot


KASAN: use-after-free Read in tipc_nl_node_dump_link
Status: upstream: reported C repro on 2020/06/26 17:19
Reported-by: syzbot+520f8704db2b68091d44@syzkaller.appspotmail.com
Fix commit: genetlink: get rid of family->attrbuf
Patched on: [ci-upstream-bpf-kasan-gce ci-upstream-linux-next-kasan-gce-root ci-upstream-net-this-kasan-gce], missing on: [ci-qemu-upstream ci-qemu-upstream-386 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-kmsan-gce ci-upstream-kmsan-gce-386 ci-upstream-net-kasan-gce ci2-upstream-kcsan-gce ci2-upstream-usb]
First crash: 8d08h, last: 2h49m

Cause bisection: failed (bisect log)
Patch testing requests:
Created Duration User Patch Repo Result
2020/06/26 23:46 18m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git net OK

Sample crash report:

Crashes (9):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce 2020/06/26 14:36 upstream 4a21185c aea82c00 .config log report syz C davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com
ci-upstream-kasan-gce-smack-root 2020/06/26 14:28 upstream 4a21185c aea82c00 .config log report syz C davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com
ci-upstream-kasan-gce-root 2020/06/26 14:06 upstream 4a21185c aea82c00 .config log report syz C davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com
ci-upstream-net-this-kasan-gce 2020/06/26 14:34 net f4926d51 aea82c00 .config log report syz C davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com
ci-upstream-linux-next-kasan-gce-root 2020/06/27 18:55 linux-next 36e3135d ffec44b5 .config log report syz C davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com
ci-upstream-kasan-gce-smack-root 2020/07/04 19:49 upstream 7cc2a8ea 51095195 .config log report davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com
ci-upstream-kasan-gce 2020/06/27 19:28 upstream 1590a2e1 ffec44b5 .config log report davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com
ci-upstream-kasan-gce-root 2020/06/26 13:45 upstream 4a21185c aea82c00 .config log report davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com
ci-upstream-net-kasan-gce 2020/06/28 10:02 net-next 7bed1455 ffec44b5 .config log report davem@davemloft.net, jmaloy@redhat.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, tipc-discussion@lists.sourceforge.net, ying.xue@windriver.com