syzbot


KASAN: use-after-free Read in dev_get_by_name
Status: upstream: reported C repro on 2020/06/29 23:11
Reported-by: syzbot+86e957379663a156cd31@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: 5d02h, last: 3d10h

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-smack-root 2020/06/29 20:50 upstream 4e99b321 a2cdad9d .config log report syz C Jason@zx2c4.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, wireguard@lists.zx2c4.com
ci-upstream-kasan-gce-smack-root 2020/07/01 12:18 upstream 7c30b859 39acb39d .config log report Jason@zx2c4.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, wireguard@lists.zx2c4.com
ci-upstream-kasan-gce-smack-root 2020/06/29 20:30 upstream 4e99b321 a2cdad9d .config log report Jason@zx2c4.com, davem@davemloft.net, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, wireguard@lists.zx2c4.com