syzbot


[upstream] KASAN: use-after-free Read in seccomp_notify_release
Status: upstream: reported C repro on 2019/01/11 15:53
Reported-by: syzbot+981c26489b2d1c6316ba@syzkaller.appspotmail.com
Commits: seccomp: fix UAF in user-trap code
Patched on: [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], missing on: [ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-kmsan-gce ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce]
First: 8d12h, last: 8d01h

Sample crash report:

All crashes (7):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-smack-root 2019/01/11 12:01 upstream 1bdbe227 80dde172 .config log report syz C keescook@chromium.org, linux-kernel@vger.kernel.org, luto@amacapital.net, wad@chromium.org
ci-upstream-kasan-gce-root 2019/01/11 21:38 upstream de6629eb c3f3344c .config log report syz C keescook@chromium.org, linux-kernel@vger.kernel.org, luto@amacapital.net, wad@chromium.org
ci-upstream-kasan-gce 2019/01/11 16:24 upstream 1bdbe227 c3f3344c .config log report syz C keescook@chromium.org, linux-kernel@vger.kernel.org, luto@amacapital.net, wad@chromium.org
ci-upstream-kasan-gce-selinux-root 2019/01/11 13:13 upstream 1bdbe227 80dde172 .config log report syz C keescook@chromium.org, linux-kernel@vger.kernel.org, luto@amacapital.net, wad@chromium.org
ci-upstream-kasan-gce-386 2019/01/11 11:37 upstream 1bdbe227 80dde172 .config log report syz C keescook@chromium.org, linux-kernel@vger.kernel.org, luto@amacapital.net, wad@chromium.org
ci-upstream-linux-next-kasan-gce-root 2019/01/11 11:56 linux-next b808822a 80dde172 .config log report syz C keescook@chromium.org, linux-kernel@vger.kernel.org, luto@amacapital.net, wad@chromium.org
ci-upstream-kasan-gce-386 2019/01/11 11:04 upstream 1bdbe227 80dde172 .config log report keescook@chromium.org, linux-kernel@vger.kernel.org, luto@amacapital.net, wad@chromium.org