syzbot


general protection fault in strncasecmp
Status: upstream: reported C repro on 2020/09/24 09:26
Reported-by: syzbot+459a5dce0b4cb70fd076@syzkaller.appspotmail.com
Fix commit: 92e3cc91 afs: Fix rapid cell addition/removal by not using RCU on cells tree
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: 33d, last: 33d

Cause bisection: introduced by (bisect log) :
commit bfd45be0b83e8f711f3abc892850d6047972d127
Author: Christoph Hellwig <hch@lst.de>
Date: Tue Oct 11 20:52:22 2016 +0000

  kprobes: include <asm/sections.h> instead of <asm-generic/sections.h>

Crash: WARNING in nf_unregister_net_hook (log)
Repro: C syz .config
Patch testing requests:
Created Duration User Patch Repo Result
2020/10/16 13:09 18m dhowells@redhat.com git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git f25a7033ecb675101f8bc060a7c5fbe0c9076fd3 OK
2020/10/13 20:14 16m dhowells@redhat.com git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git f8eb8d1c6a853f617ca9ee233bb2d230401c5bdc report log

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Maintainers
ci-upstream-kasan-gce-root 2020/09/22 18:45 upstream 98477740 3e8f6c27 .config log report syz C dhowells@redhat.com, linux-afs@lists.infradead.org, linux-kernel@vger.kernel.org