syzbot


KASAN: null-ptr-deref Write in blk_mq_map_swqueue
Status: fixed on 2020/06/25 16:52
Reported-by: syzbot+313d95e8a7a49263f88d@syzkaller.appspotmail.com
Fix commit: d0930bb8f46b blk-mq: Fix a recently introduced regression in blk_mq_realloc_hw_ctxs()
First crash: 528d, last: 492d

Cause bisection: introduced by (bisect log) :
commit 768134d4f48109b90f4248feecbeeb7d684e410c
Author: Jens Axboe <axboe@kernel.dk>
Date: Mon Nov 11 03:30:53 2019 +0000

  io_uring: don't do flush cancel under inflight_lock

Crash: general protection fault in batadv_iv_ogm_queue_add (log)
Repro: C syz .config

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-selinux-root 2020/03/26 19:33 upstream 1b649e0bcae7 6d25c5a0 .config log report syz C
ci-upstream-kasan-gce-selinux-root 2020/03/26 18:31 upstream 1b649e0bcae7 6d25c5a0 .config log report
ci-upstream-linux-next-kasan-gce-root 2020/02/19 12:55 linux-next 1d7f85df0f9c 135c18aa .config log report