syzbot


WARNING: suspicious RCU usage in gc_worker
Status: internal: reported on 2021/05/13 03:58
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 3066820034b5 rcu: Reject RCU_LOCKDEP_WARN() false positives
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte ci-qemu2-riscv64 ci-upstream-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce 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-qemu2-arm32 ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 76d, last: 50d

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/06/08 16:59 upstream 614124bea77e b718257f .config log report info WARNING: suspicious RCU usage in gc_worker
ci-upstream-kasan-gce 2021/05/21 19:41 upstream 79a106fc6585 3c7fef33 .config log report info WARNING: suspicious RCU usage in gc_worker
ci-upstream-kasan-gce-selinux-root 2021/05/13 03:57 upstream dbb5afad100a ed7d41c5 .config log report info WARNING: suspicious RCU usage in gc_worker