bisecting fixing commit since 414510bc00a5fc954d8340c170083f518d09aa55
building syzkaller on a60cb4cd840ce786236a00480e8bb1025e0c5fef
testing commit 414510bc00a5fc954d8340c170083f518d09aa55
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: ae6d2a6d37dc5452737ac676ae0b266afc32a95b97af2c66d094ff09e3c3b49c
run #0: crashed: kernel BUG in rxrpc_disconnect_client_call
run #1: crashed: general protection fault in rxrpc_get_skb
run #2: crashed: BUG: unable to handle kernel NULL pointer dereference in rxrpc_send_data_packet
run #3: crashed: BUG: unable to handle kernel NULL pointer dereference in rxrpc_send_data_packet
run #4: crashed: BUG: unable to handle kernel NULL pointer dereference in rxrpc_send_data_packet
run #5: crashed: BUG: unable to handle kernel NULL pointer dereference in rxrpc_send_data_packet
run #6: crashed: BUG: unable to handle kernel NULL pointer dereference in rxrpc_send_data_packet
run #7: crashed: BUG: unable to handle kernel NULL pointer dereference in rxrpc_send_data_packet
run #8: crashed: kernel BUG in rxrpc_destroy_all_locals
run #9: crashed: kernel BUG in rxrpc_destroy_all_locals
run #10: crashed: kernel BUG in rxrpc_destroy_all_locals
run #11: crashed: kernel BUG in rxrpc_destroy_all_locals
run #12: crashed: kernel BUG in rxrpc_destroy_all_locals
run #13: crashed: kernel BUG in rxrpc_destroy_all_locals
run #14: crashed: kernel BUG in rxrpc_destroy_all_locals
run #15: crashed: kernel BUG in rxrpc_destroy_all_locals
run #16: crashed: kernel BUG in rxrpc_destroy_all_locals
run #17: crashed: kernel BUG in rxrpc_destroy_all_locals
run #18: crashed: kernel BUG in rxrpc_destroy_all_locals
run #19: crashed: kernel BUG in rxrpc_destroy_all_locals
testing current HEAD 4ba8e26127c393c32776dff6d79c5b82de6dc542
testing commit 4ba8e26127c393c32776dff6d79c5b82de6dc542
compiler: gcc version 8.4.1 20210217 (GCC)
kernel signature: cc9a5ef13c5f23128b762b18bec959cc5ed1c48d4a913da5d3c314335dcbf1d9
all runs: crashed: unregister_netdevice: waiting for DEV to become free
revisions tested: 2, total time: 35m4.922114939s (build: 21m27.863082705s, test: 12m28.739009659s)
the crash still happens on HEAD
commit msg: Linux 4.14.262
crash: unregister_netdevice: waiting for DEV to become free
unregister_netdevice: waiting for ip6gre0 to become free. Usage count = -1