bisecting fixing commit since 06a7a37be55e29961c9ba2abec4d07c8e0e21861 building syzkaller on bc15f7dbbc1c6e2042a7115b3fdacc0ada8c35e7 testing commit 06a7a37be55e29961c9ba2abec4d07c8e0e21861 with gcc (GCC) 8.4.1 20210217 kernel signature: c1a01bb8a89a1db1e66babf084771f7f9491dd15dad740d090c1360e6a072016 run #0: crashed: KASAN: use-after-free Read in lock_sock_nested run #1: crashed: KASAN: use-after-free Read in lock_sock_nested run #2: crashed: KASAN: use-after-free Read in lock_sock_nested run #3: crashed: KASAN: use-after-free Read in lock_sock_nested run #4: crashed: KASAN: use-after-free Read in lock_sock_nested run #5: crashed: KASAN: use-after-free Read in lock_sock_nested run #6: crashed: KASAN: use-after-free Read in lock_sock_nested run #7: crashed: KASAN: use-after-free Read in lock_sock_nested run #8: crashed: KASAN: use-after-free Read in lock_sock_nested run #9: crashed: INFO: trying to register non-static key in l2cap_sock_teardown_cb run #10: crashed: KASAN: use-after-free Read in lock_sock_nested run #11: crashed: KASAN: use-after-free Read in lock_sock_nested run #12: crashed: KASAN: use-after-free Read in lock_sock_nested run #13: crashed: INFO: trying to register non-static key in l2cap_sock_teardown_cb run #14: crashed: KASAN: use-after-free Read in lock_sock_nested run #15: crashed: KASAN: use-after-free Read in lock_sock_nested run #16: crashed: KASAN: use-after-free Read in lock_sock_nested run #17: crashed: KASAN: use-after-free Read in lock_sock_nested run #18: crashed: KASAN: use-after-free Read in lock_sock_nested run #19: crashed: INFO: trying to register non-static key in l2cap_sock_teardown_cb testing current HEAD 232e3683b4ee529a0643fa45b3f0f6c06590aca2 testing commit 232e3683b4ee529a0643fa45b3f0f6c06590aca2 with gcc (GCC) 10.2.1 20210217 kernel signature: 18630645b2bac6b461d3a7c53c75d4a5dd6fb9172e2536008ed247fb15eb1055 all runs: boot failed: BUG: unable to handle kernel paging request in hgafb_open revisions tested: 2, total time: 27m38.853407679s (build: 12m3.790126616s, test: 14m39.169286425s) bisection is inconclusive, the first good commit could be any of: 06a7a37be55e29961c9ba2abec4d07c8e0e21861 232e3683b4ee529a0643fa45b3f0f6c06590aca2