Warning: Permanently added '10.128.0.93' (ECDSA) to the list of known hosts. 2020/09/17 01:42:57 fuzzer started 2020/09/17 01:42:57 connecting to host at 10.128.0.105:40211 2020/09/17 01:42:57 checking machine... 2020/09/17 01:42:57 checking revisions... 2020/09/17 01:42:57 testing simple program... syzkaller login: [ 38.725419] audit: type=1400 audit(1600306977.230:9): avc: denied { execmem } for pid=6373 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 38.787782] IPVS: ftp: loaded support on port[0] = 21 2020/09/17 01:42:57 building call list... [ 39.379225] ================================================================================ [ 39.388013] UBSAN: Undefined behaviour in ./include/crypto/hash.h:686:9 [ 39.394761] member access within null pointer of type 'struct crypto_shash' [ 39.401866] CPU: 1 PID: 3034 Comm: kworker/u4:5 Not tainted 4.14.198-syzkaller #0 [ 39.409482] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 39.418850] Workqueue: netns cleanup_net [ 39.422908] Call Trace: [ 39.425511] dump_stack+0x21b/0x32e [ 39.429144] ? dma_virt_alloc+0x82/0x82 [ 39.433115] ? ubsan_prologue+0x29/0x50 [ 39.437085] ubsan_epilogue+0xe/0x3a [ 39.440791] handle_null_ptr_deref+0x78/0x80 [ 39.445193] __ubsan_handle_type_mismatch_v1+0x81/0xb0 [ 39.450472] sctp_destruct_sock+0x70/0x80 [ 39.454612] ? sctp_accept+0x730/0x730 [ 39.458493] __sk_destruct+0x93/0x8e0 [ 39.462286] ? proto_unregister+0x5e0/0x5e0 [ 39.466605] ? mark_held_locks+0xc4/0x120 [ 39.470747] __sk_free+0xf4/0x370 [ 39.474194] sk_free+0x30/0x50 [ 39.477382] sctp_close+0x667/0x940 [ 39.481005] ? sctp_init_sock+0x1430/0x1430 [ 39.485322] ? do_raw_spin_unlock+0x1e0/0x310 [ 39.489826] ? ip_mc_drop_socket+0x16/0x270 [ 39.494141] inet_release+0xfe/0x230 [ 39.497852] inet6_release+0x51/0x80 [ 39.501568] __sock_release+0x236/0x330 [ 39.505539] sctp_ctrlsock_exit+0x67/0x90 [ 39.509683] ops_exit_list+0x9a/0x190 [ 39.513480] cleanup_net+0x4a3/0xd30 [ 39.517191] ? net_drop_ns+0x90/0x90 [ 39.520911] process_one_work+0x7ac/0x1890 [ 39.525145] ? pwq_dec_nr_in_flight+0x360/0x360 [ 39.529812] ? lock_acquire+0x197/0x510 [ 39.533776] ? rwlock_bug.part.0+0xe0/0xe0 [ 39.538009] ? worker_thread+0x1e0/0x1330 [ 39.542160] worker_thread+0x6c1/0x1330 [ 39.546127] ? process_one_work+0x1890/0x1890 [ 39.550607] ? process_one_work+0x1890/0x1890 [ 39.555084] kthread+0x35e/0x530 [ 39.558439] ? kthread_create_on_node+0xd0/0xd0 [ 39.563089] ret_from_fork+0x24/0x30 [ 39.566804] ================================================================================ [ 39.929051] can: request_module (can-proto-0) failed. [ 39.942933] can: request_module (can-proto-0) failed. [ 39.954735] can: request_module (can-proto-0) failed. [ 40.008845] audit: type=1400 audit(1600306978.522:10): avc: denied { create } for pid=6357 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1