syzbot


WARNING: refcount bug in sk_psock_get
Status: upstream: reported C repro on 2021/04/09 15:39
Reported-by: syzbot+b54a1ce86ba4a623b7f0@syzkaller.appspotmail.com
Fix commit: 8621436671f3 smc: disallow TCP_ULP in smc_setsockopt()
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-kmsan-gce ci-upstream-kmsan-gce-386 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]
First crash: 116d, last: 86d

Cause bisection: introduced by (bisect log) :
commit 997acaf6b4b59c6a9c259740312a69ea549cc684
Author: Mark Rutland <mark.rutland@arm.com>
Date: Mon Jan 11 15:37:07 2021 +0000

  lockdep: report broken irq restoration

Crash: WARNING in kvm_wait (log)
Repro: C syz .config
Patch testing requests:
Created Duration User Patch Repo Result
2021/04/10 16:30 16m xiyou.wangcong@gmail.com https://github.com/congwang/linux.git bpf-next OK
2021/04/09 17:19 12m xiyou.wangcong@gmail.com bpf-next report log

Sample crash report:

Crashes (8):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-linux-next-kasan-gce-root 2021/04/07 07:58 linux-next 9c54130cd255 6a81331a .config log report syz C WARNING: refcount bug in sk_psock_get
ci-upstream-net-kasan-gce 2021/05/07 02:01 net-next 95aafe911db6 06585184 .config log report info WARNING: refcount bug in sk_psock_get
ci-upstream-net-kasan-gce 2021/04/12 15:45 net-next 5b489fea977c bfeda1b1 .config log report info WARNING: refcount bug in sk_psock_get
ci-upstream-net-kasan-gce 2021/04/11 21:23 net-next cbd312539284 bfeda1b1 .config log report info WARNING: refcount bug in sk_psock_get
ci-upstream-linux-next-kasan-gce-root 2021/04/12 22:14 linux-next 5df924d19629 bfeda1b1 .config log report info WARNING: refcount bug in sk_psock_get
ci-upstream-linux-next-kasan-gce-root 2021/04/12 22:12 linux-next 5df924d19629 bfeda1b1 .config log report info WARNING: refcount bug in sk_psock_get
ci-upstream-linux-next-kasan-gce-root 2021/04/07 07:38 linux-next 9c54130cd255 6a81331a .config log report info WARNING: refcount bug in sk_psock_get
ci-upstream-linux-next-kasan-gce-root 2021/04/06 22:05 linux-next 9c54130cd255 6a81331a .config log report info WARNING: refcount bug in sk_psock_get