syzbot


WARNING: suspicious RCU usage in vxlan_xmit
Status: internal: reported C repro on 2021/06/21 06:07
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 85e8b032d6eb vxlan: add missing rcu_read_lock() in neigh_reduce()
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: 88d, last: 88d

Cause bisection: failed (bisect log)
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-4.19 WARNING: suspicious RCU usage in vxlan_xmit C done 1 71d 71d 1/1 fixed on 2021/08/06 16:37

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-net-this-kasan-gce 2021/06/21 06:06 net dda2626b86c2 aba2b2fb .config log report syz C WARNING: suspicious RCU usage in vxlan_xmit