bisecting fixing commit since 773e2b1cd56a17bab4cdd4fe7db12f2140951668
building syzkaller on 9941337c5f7cfa2f5c0d19c53f0bb9a2444f43ce
testing commit 773e2b1cd56a17bab4cdd4fe7db12f2140951668 with gcc (GCC) 8.1.0
kernel signature: 9959151771db9183020682420cb6a82c30621df5de43f550a1497a5e32b471c9
all runs: crashed: KASAN: use-after-free Write in get_block
testing current HEAD 4139fb08c05fec734f85a99e8b7d99dc12b1b68c
testing commit 4139fb08c05fec734f85a99e8b7d99dc12b1b68c with gcc (GCC) 8.1.0
kernel signature: 5bc03ee85ade1b3899fd0f7be5416807848efc11e8bd7840b69e19303fd21f8f
all runs: boot failed: WARNING in kvm_mmu_set_mmio_spte_mask
revisions tested: 2, total time: 30m21.543154507s (build: 16m8.814565525s, test: 13m46.280820267s)
bisection is inconclusive, the first good commit could be any of:
773e2b1cd56a17bab4cdd4fe7db12f2140951668
4139fb08c05fec734f85a99e8b7d99dc12b1b68c