bisecting fixing commit since 98db2bf27b9ed2d5ed0b6c9c8a4bfcb127a19796
building syzkaller on c88c7b75a4e022b758f4b0f1bf3db8ebb2fb25e6
testing commit 98db2bf27b9ed2d5ed0b6c9c8a4bfcb127a19796 with gcc (GCC) 8.1.0
kernel signature: 34a39267fbf45c461bd576c6feb834e93bf6c822d043362d2fafc01686ba1511
run #0: crashed: WARNING: held lock freed in pppol2tp_release
run #1: crashed: KASAN: use-after-free Read in l2tp_session_queue_purge
run #2: crashed: WARNING: held lock freed in pppol2tp_release
run #3: crashed: KASAN: use-after-free Read in l2tp_session_queue_purge
run #4: crashed: KASAN: use-after-free Read in l2tp_session_queue_purge
run #5: crashed: WARNING: held lock freed in pppol2tp_release
run #6: crashed: WARNING: held lock freed in pppol2tp_release
run #7: crashed: KASAN: use-after-free Read in l2tp_session_queue_purge
run #8: crashed: KASAN: use-after-free Read in l2tp_session_queue_purge
run #9: crashed: WARNING: held lock freed in pppol2tp_release
testing current HEAD 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1
testing commit 56dfe6252c6823c486ce4b1a922d72abc7e3c6b1 with gcc (GCC) 8.1.0
kernel signature: 464f399f289ddbc610588104a3ebd772c237f9f0e587420518fdee3348eda5d3
all runs: boot failed: WARNING in kvm_mmu_set_mmio_spte_mask
revisions tested: 2, total time: 30m53.073245113s (build: 16m18.648325383s, test: 13m54.059600337s)
bisection is inconclusive, the first good commit could be any of:
98db2bf27b9ed2d5ed0b6c9c8a4bfcb127a19796
56dfe6252c6823c486ce4b1a922d72abc7e3c6b1