Warning: Permanently added '10.128.0.252' (ECDSA) to the list of known hosts. 2020/09/17 01:42:55 fuzzer started 2020/09/17 01:42:55 connecting to host at 10.128.0.105:42621 2020/09/17 01:42:55 checking machine... 2020/09/17 01:42:55 checking revisions... 2020/09/17 01:42:55 testing simple program... syzkaller login: [ 37.067059] audit: type=1400 audit(1600306975.892:8): avc: denied { execmem } for pid=6385 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 37.122714] IPVS: ftp: loaded support on port[0] = 21 2020/09/17 01:42:56 building call list... [ 37.731970] ================================================================================ [ 37.740681] UBSAN: Undefined behaviour in ./include/crypto/hash.h:686:9 [ 37.747420] member access within null pointer of type 'struct crypto_shash' [ 37.754505] CPU: 0 PID: 5 Comm: kworker/u4:0 Not tainted 4.14.198-syzkaller #0 [ 37.761853] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.771203] Workqueue: netns cleanup_net [ 37.775252] Call Trace: [ 37.777833] dump_stack+0x21b/0x32e [ 37.781456] ? dma_virt_alloc+0x82/0x82 [ 37.785420] ? ubsan_prologue+0x29/0x50 [ 37.789387] ubsan_epilogue+0xe/0x3a [ 37.793090] handle_null_ptr_deref+0x78/0x80 [ 37.797488] __ubsan_handle_type_mismatch_v1+0x81/0xb0 [ 37.802764] sctp_destruct_sock+0x70/0x80 [ 37.806899] ? sctp_accept+0x730/0x730 [ 37.810775] __sk_destruct+0x93/0x8e0 [ 37.814563] ? proto_unregister+0x5e0/0x5e0 [ 37.818881] ? mark_held_locks+0xc4/0x120 [ 37.823023] __sk_free+0xf4/0x370 [ 37.826466] sk_free+0x30/0x50 [ 37.829646] sctp_close+0x667/0x940 [ 37.833269] ? sctp_init_sock+0x1430/0x1430 [ 37.837579] ? do_raw_spin_unlock+0x1e0/0x310 [ 37.842067] ? ip_mc_drop_socket+0x16/0x270 [ 37.846389] inet_release+0xfe/0x230 [ 37.850091] inet6_release+0x51/0x80 [ 37.853786] __sock_release+0x236/0x330 [ 37.857753] sctp_ctrlsock_exit+0x67/0x90 [ 37.861882] ops_exit_list+0x9a/0x190 [ 37.865663] cleanup_net+0x4a3/0xd30 [ 37.869355] ? net_drop_ns+0x90/0x90 [ 37.873096] process_one_work+0x7ac/0x1890 [ 37.877360] ? pwq_dec_nr_in_flight+0x360/0x360 [ 37.882016] ? lock_acquire+0x197/0x510 [ 37.885977] ? rwlock_bug.part.0+0xe0/0xe0 [ 37.890189] ? worker_thread+0x1e0/0x1330 [ 37.894325] worker_thread+0x6c1/0x1330 [ 37.898284] ? process_one_work+0x1890/0x1890 [ 37.902760] ? process_one_work+0x1890/0x1890 [ 37.907232] kthread+0x35e/0x530 [ 37.910591] ? kthread_create_on_node+0xd0/0xd0 [ 37.915247] ret_from_fork+0x24/0x30 [ 37.918942] ================================================================================ [ 38.309335] can: request_module (can-proto-0) failed. [ 38.322047] can: request_module (can-proto-0) failed. [ 38.333934] can: request_module (can-proto-0) failed. [ 38.382690] audit: type=1400 audit(1600306977.204:9): avc: denied { create } for pid=6369 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1