syzbot


WARNING: suspicious RCU usage in qrtr_ns_worker
Status: fixed on 2020/11/16 12:12
Reported-by: syzbot+0f84f6eed90503da72fc@syzkaller.appspotmail.com
Fix commit: a7809ff90ce6 net: qrtr: ns: Protect radix_tree_deref_slot() using rcu read locks
First crash: 522d, last: 458d

Cause bisection: introduced by (bisect log) :
commit e42671084361302141a09284fde9bbc14fdd16bf
Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Date: Thu May 7 12:53:06 2020 +0000

  net: qrtr: Do not depend on ARCH_QCOM

Crash: WARNING: suspicious RCU usage in ctrl_cmd_new_lookup (log)
Repro: C syz .config
Patch testing requests:
Created Duration User Patch Repo Result
2020/09/26 13:52 16m manivannan.sadhasivam@linaro.org patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master OK
2020/09/26 11:59 8m manivannan.sadhasivam@linaro.org patch https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master error

Sample crash report:

Fix bisection attempts:
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/08/27 06:57 upstream 15bc20c6af4c 54566aff .config log report syz C
ci-upstream-kasan-gce-smack-root 2020/07/27 12:50 upstream 92ed30191993 54566aff .config log report syz C
Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2020/06/25 03:44 upstream 7ae77150d94d 54566aff .config log report syz C