bisecting fixing commit since b98aebd298246df37b472c52a2ee1023256d02e3 building syzkaller on 25bb509e5964da8203766c4039e4fef25e4689b1 testing commit b98aebd298246df37b472c52a2ee1023256d02e3 with gcc (GCC) 8.1.0 kernel signature: b82883fd931e7f8a6a17a20766a3ed8898a96cbaeea853510ef78119c21af86a run #0: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname run #1: crashed: KASAN: null-ptr-deref in llcp_sock_getname run #2: crashed: BUG: unable to handle kernel run #3: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname run #4: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in corrupted run #6: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname run #7: crashed: KASAN: null-ptr-deref Read in llcp_sock_getname run #8: crashed: BUG: unable to handle kernel run #9: crashed: KASAN: null-ptr-deref in llcp_sock_getname testing current HEAD 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1 testing commit 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1 with gcc (GCC) 8.1.0 kernel signature: 76d458a52b6be6d35bff527a733a7013b8e7ac7c0ce15a8333286cfa334a6652 all runs: boot failed: WARNING in kvm_mmu_set_mmio_spte_mask revisions tested: 2, total time: 30m31.445748709s (build: 15m45.902548944s, test: 13m53.884677957s) bisection is inconclusive, the first good commit could be any of: b98aebd298246df37b472c52a2ee1023256d02e3 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1