bisecting fixing commit since b850307b279cbd12ab8c654d1a3dfe55319cc475
building syzkaller on b6c46f43512613717ccfdfffd6e68ac943c0727a
testing commit b850307b279cbd12ab8c654d1a3dfe55319cc475 with gcc (GCC) 8.1.0
kernel signature: ca12bdf0bc579a90581ac90c2ec17c1c0535a84e4e9cf172b3287187a601ad84
run #0: crashed: KASAN: use-after-free Read in __ext4_check_dir_entry
run #1: crashed: KASAN: use-after-free Read in __ext4_check_dir_entry
run #2: crashed: KASAN: use-after-free Read in __ext4_check_dir_entry
run #3: crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
run #4: crashed: KASAN: use-after-free Read in __ext4_check_dir_entry
run #5: crashed: KASAN: use-after-free Read in __ext4_check_dir_entry
run #6: crashed: KASAN: use-after-free Read in __ext4_check_dir_entry
run #7: OK
run #8: OK
run #9: crashed: KASAN: use-after-free Read in __ext4_check_dir_entry
testing current HEAD 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1
testing commit 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1 with gcc (GCC) 8.1.0
kernel signature: fd0c210050c6b612947c90545367bf5c638753d0423070084a3cd8fcd7fe88e9
all runs: boot failed: WARNING in kvm_mmu_set_mmio_spte_mask
revisions tested: 2, total time: 39m13.395917373s (build: 17m40.980121789s, test: 20m36.584413084s)
bisection is inconclusive, the first good commit could be any of:
b850307b279cbd12ab8c654d1a3dfe55319cc475
56dfe6252c6823c486ce4b1a922d72abc7e3c6b1