bisecting fixing commit since ca4f2c56d4162a4a5236f2099b55453fb98296f9
building syzkaller on 0487ea6f5d997a8363eba0d2eb0ea7a925444555
testing commit ca4f2c56d4162a4a5236f2099b55453fb98296f9 with gcc (GCC) 8.4.1 20210217
kernel signature: 091f4d95414efe7e0ec686a79bee16518cc8b146b60d3e3b88725c8648703b65
all runs: crashed: KASAN: use-after-free Read in hci_send_acl
testing current HEAD cfb41ef9deb1e6572ac218ddfcec9567e5d1c101
testing commit cfb41ef9deb1e6572ac218ddfcec9567e5d1c101 with gcc (GCC) 8.4.1 20210217
kernel signature: a9458bc59367189b78edd355f7d71e055bdb7ef101b17850c2c25051c5d0c533
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 22m50.018940564s (build: 16m7.991856487s, test: 6m18.92850327s)
the crash still happens on HEAD
commit msg: Linux 4.14.237
crash: unregister_netdevice: waiting for DEV to become free
can: request_module (can-proto-0) failed.
can: request_module (can-proto-0) failed.
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1