syzbot


BUG: unable to handle kernel NULL pointer dereference in check_preemption_disabled (3)
Status: internal: reported on 2020/06/17 08:53
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 3021e692 kcov: check kcov_softirq in kcov_remote_stop()
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-upstream-bpf-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-bpf-next-kasan-gce ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 17d, last: 17d
similar bugs (2):
Kernel Title Repro Bisected Count Last Reported Patched Status
upstream BUG: unable to handle kernel NULL pointer dereference in check_preemption_disabled (2) 1 18d 18d 0/17 closed as invalid on 2020/06/16 10:33
upstream BUG: unable to handle kernel NULL pointer dereference in check_preemption_disabled 1 26d 26d 0/17 closed as invalid on 2020/06/10 12:27

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-smack-root 2020/06/17 19:51 upstream 7ae77150 b9f3810b .config log report adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, tytso@mit.edu
ci-upstream-kasan-gce-smack-root 2020/06/17 18:16 upstream 7ae77150 b9f3810b .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
ci-upstream-kasan-gce-smack-root 2020/06/17 08:52 upstream 7ae77150 b9f3810b .config log report linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, viro@zeniv.linux.org.uk