syzbot


KASAN: use-after-free Write in page_counter_uncharge
Status: upstream: reported on 2020/08/18 14:50
Reported-by: syzbot+b305848212deec86eabe@syzkaller.appspotmail.com
Fix commit: f1796544 memcg: fix use-after-free in uncharge_batch
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 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-linux-next-kasan-gce-root ci2-upstream-kcsan-gce ci2-upstream-usb], missing on: [ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-net-kasan-gce ci-upstream-net-this-kasan-gce]
First crash: 38d, last: 29d

Sample crash report:

Crashes (2):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-smack-root 2020/08/23 18:56 upstream c3d8f220 cef5ae68 .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org
ci-upstream-kasan-gce-smack-root 2020/08/14 14:30 upstream a1d21081 424dd8e7 .config log report akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org