syzbot


kernel BUG in kvm_read_guest_offset_cached
Status: upstream: reported on 2021/11/22 22:14
Reported-by: syzbot+7b7db8bb4db6fd5e157b@syzkaller.appspotmail.com
Fix commit: 8503fea6761d KVM: VMX: do not use uninitialized gfn_to_hva_cache
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-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-bpf-kasan-gce ci-upstream-bpf-next-kasan-gce ci-upstream-kmsan-gce ci-upstream-kmsan-gce-386]
First crash: 18d, last: 7d20h
similar bugs (1):
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 kernel BUG in kvm_mmu_notifier_invalidate_range_end C error 108 1d11h 45d 0/1 internal: reported C repro on 2021/10/22 15:57

Sample crash report:

Crashes (11):
Manager Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Title
ci-upstream-kasan-gce 2021/11/29 07:28 upstream d06c942efea4 63eeac02 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-kasan-gce-selinux-root 2021/11/27 09:31 upstream c5c17547b778 63eeac02 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-kasan-gce 2021/11/23 20:23 upstream 136057256686 545ab074 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-kasan-gce 2021/11/20 06:30 upstream 4c388a8e740d 3a9d0024 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-kasan-gce 2021/11/19 11:26 upstream 4c388a8e740d 31a30fc0 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-kasan-gce 2021/11/19 10:35 upstream 6fdf886424cf 31a30fc0 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-kasan-gce-smack-root 2021/11/19 00:55 upstream 6fdf886424cf 31a30fc0 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-kasan-gce-smack-root 2021/11/18 22:39 upstream 6fdf886424cf 31a30fc0 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-kasan-gce 2021/11/18 22:06 upstream 6fdf886424cf 31a30fc0 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-linux-next-kasan-gce-root 2021/11/28 21:32 linux-next f81e94e91878 63eeac02 .config log report info kernel BUG in kvm_read_guest_offset_cached
ci-upstream-linux-next-kasan-gce-root 2021/11/25 05:34 linux-next 4b74e088fef6 545ab074 .config log report info kernel BUG in kvm_read_guest_offset_cached