On Sat, Sep 18, 2021, Hao Sun wrote: > Hello, > > When using Healer to fuzz the latest Linux kernel, the following crash > was triggered. > > HEAD commit: ff1ffd71d5f0 Merge tag 'hyperv-fixes-signed-20210915 > git tree: upstream > console output: > https://drive.google.com/file/d/1I3q-rH7yJXxmr16cI418avyA_tHdoOVE/view?usp=sharing > kernel config: https://drive.google.com/file/d/1zXpDhs-IdE7tX17B7MhaYP0VGUfP6m9B/view?usp=sharing > > Sorry, I don't have a reproducer for this crash, hope the symbolized > report can help. > If you fix this issue, please add the following tag to the commit: > Reported-by: Hao Sun <sunhao.th@xxxxxxxxx> > > general protection fault, probably for non-canonical address ... > srcu_gp_start_if_needed+0x145/0xbf0 kernel/rcu/srcutree.c:823 > __synchronize_srcu+0x1f4/0x270 kernel/rcu/srcutree.c:929 Duplicate of https://lkml.kernel.org/r/CACkBjsZ55MKvOBGYJyQxwHBCQOTP=Lz=yfYwJtdOzNiT59E38g@xxxxxxxxxxxxxx > kvm_mmu_uninit_vm+0x18/0x30 arch/x86/kvm/mmu/mmu.c:5711 > kvm_arch_destroy_vm+0x42b/0x5b0 arch/x86/kvm/x86.c:11331 > kvm_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:1094 [inline] > kvm_dev_ioctl_create_vm arch/x86/kvm/../../../virt/kvm/kvm_main.c:4583 [inline] > kvm_dev_ioctl+0x1508/0x1aa0 arch/x86/kvm/../../../virt/kvm/kvm_main.c:4638
