syzbot


general protection fault in utf8_casefold
Status: upstream: reported C repro on 2020/10/08 14:59
Reported-by: syzbot+05139c4039d0679e19ff@syzkaller.appspotmail.com
Fix commit: f6322f3f f2fs: reject CASEFOLD inode flag without casefold feature
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-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-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 18d, last: 18d

Cause bisection: introduced by (bisect log) :
commit 91db9311945f01901ddb9813ce11364de214a156
Author: Su Sung Chung <Su.Chung@amd.com>
Date: Mon Jul 8 15:31:39 2019 +0000

  drm/amd/display: refactor gpio to allocate hw_container in constructor

Crash: WARNING in __blkdev_put (log)
Repro: C syz .config

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-smack-root 2020/10/08 09:50 upstream c85fb28b 1880b4a9 .config log report syz C krisman@collabora.com, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org