syzbot


UBSAN: shift-out-of-bounds in qfq_init_qdisc
Status: internal: reported on 2022/01/01 21:58
Reported-by: syzbot+@syzkaller.appspotmail.com
Fix commit: 7d18a07897d0 sch_qfq: prevent shift-out-of-bounds in qfq_init_qdisc
Patched on: [ci-qemu-upstream ci-qemu-upstream-386 ci-qemu2-arm32 ci-qemu2-arm64 ci-qemu2-arm64-compat ci-qemu2-arm64-mte 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-riscv64 ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 25d, last: 25d

Sample crash report:

Crashes (1):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce-smack-root 2022/01/01 21:57 upstream 278218f6778b e1768e9c .config log report info UBSAN: shift-out-of-bounds in qfq_init_qdisc