syzbot


KCSAN: data-race in __io_uring_cancel / io_uring_try_cancel_requests
Status: upstream: reported on 2021/05/26 15:44
Reported-by: syzbot+73554e2258b7b8bf0bbf@syzkaller.appspotmail.com
Fix commit: b16ef427adf3 io_uring: fix data race to avoid potential NULL-deref
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: 61d, last: 56d

Sample crash report:

Crashes (3):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci2-upstream-kcsan-gce 2021/05/28 16:58 upstream 97e5bf604b7a 858ea628 .config log report info KCSAN: data-race in __io_uring_cancel / io_uring_try_cancel_requests
ci2-upstream-kcsan-gce 2021/05/25 18:09 upstream a050a6d2b7e8 93d3a9f6 .config log report info KCSAN: data-race in __io_uring_cancel / io_uring_try_cancel_requests
ci2-upstream-kcsan-gce 2021/05/23 18:15 upstream 4d7620341eda 3c7fef33 .config log report info KCSAN: data-race in __io_uring_cancel / io_uring_try_cancel_requests