syzbot


WARNING in wp_page_copy
Status: upstream: reported syz repro on 2019/12/02 17:27
Reported-by: syzbot+9301f2f33873407d5b33@syzkaller.appspotmail.com
First crash: 184d, last: 103d

Cause bisection: introduced by (bisect log):

commit 83d116c53058d505ddef051e90ab27f57015b025
Author: Jia He <justin.he@arm.com>
Date: Fri Oct 11 14:09:39 2019 +0000

  mm: fix double page fault on arm64 if PTE_AF is cleared

Crash: WARNING in wp_page_copy (log)
Repro: syz .config

Fix bisection: fixed by (bisect log):

commit c3e5ea6ee574ae5e845a40ac8198de1fb63bb3ab
Author: Kirill A. Shutemov <kirill@shutemov.name>
Date: Fri Mar 6 06:28:32 2020 +0000

  mm: avoid data corruption on CoW fault into PFN-mapped VMA


Sample crash report:

Crashes (9):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro Maintainers
ci-upstream-kasan-gce-selinux-root 2019/12/14 22:17 upstream e31736d9 eef6e580 .config log report syz
ci-upstream-net-this-kasan-gce 2019/12/14 21:58 net 5c9934b6 eef6e580 .config log report syz
ci-upstream-net-kasan-gce 2019/12/14 16:19 net-next 1d1997db eef6e580 .config log report syz andriin@fb.com, ast@kernel.org, bjorn.topel@intel.com, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, jonathan.lemon@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, magnus.karlsson@intel.com, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-kasan-gce 2019/12/18 01:20 upstream 9065e063 a6bc9c88 .config log report davem@davemloft.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-net-this-kasan-gce 2020/01/18 12:35 net 5a9ef194 3de7aabb .config log report andriin@fb.com, ast@kernel.org, bjorn.topel@intel.com, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, john.fastabend@gmail.com, jonathan.lemon@gmail.com, kafai@fb.com, kuba@kernel.org, linux-kernel@vger.kernel.org, magnus.karlsson@intel.com, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-net-this-kasan-gce 2019/11/28 15:35 net a6ed68d6 46869e3e .config log report davem@davemloft.net, linux-kernel@vger.kernel.org, netdev@vger.kernel.org
ci-upstream-net-kasan-gce 2019/12/14 15:17 net-next 1d1997db eef6e580 .config log report
ci-upstream-net-kasan-gce 2019/12/03 07:04 net-next 596cf45c ab342da3 .config log report andriin@fb.com, ast@kernel.org, bjorn.topel@intel.com, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, jonathan.lemon@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, magnus.karlsson@intel.com, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com
ci-upstream-net-kasan-gce 2019/11/30 15:52 net-next 81b6b964 3a75be00 .config log report andriin@fb.com, ast@kernel.org, bjorn.topel@intel.com, bpf@vger.kernel.org, daniel@iogearbox.net, davem@davemloft.net, hawk@kernel.org, jakub.kicinski@netronome.com, john.fastabend@gmail.com, jonathan.lemon@gmail.com, kafai@fb.com, linux-kernel@vger.kernel.org, magnus.karlsson@intel.com, netdev@vger.kernel.org, songliubraving@fb.com, yhs@fb.com