Warning: Permanently added '10.128.0.227' (ECDSA) to the list of known hosts. 2020/09/28 23:05:32 fuzzer started 2020/09/28 23:05:32 connecting to host at 10.128.0.105:42405 2020/09/28 23:05:32 checking machine... 2020/09/28 23:05:32 checking revisions... 2020/09/28 23:05:32 testing simple program... syzkaller login: [ 36.956768] audit: type=1400 audit(1601334332.804:8): 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 [ 37.010456] IPVS: ftp: loaded support on port[0] = 21 2020/09/28 23:05:32 building call list... [ 37.617176] ================================================================================ [ 37.625879] UBSAN: Undefined behaviour in ./include/crypto/hash.h:686:9 [ 37.632620] member access within null pointer of type 'struct crypto_shash' [ 37.639707] CPU: 1 PID: 5 Comm: kworker/u4:0 Not tainted 4.14.199-syzkaller #0 [ 37.647056] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.656404] Workqueue: netns cleanup_net [ 37.660454] Call Trace: [ 37.663032] dump_stack+0x21b/0x32e [ 37.666648] ? dma_virt_alloc+0x82/0x82 [ 37.670610] ? ubsan_prologue+0x29/0x50 [ 37.674663] ubsan_epilogue+0xe/0x3a [ 37.678363] handle_null_ptr_deref+0x78/0x80 [ 37.682761] __ubsan_handle_type_mismatch_v1+0x81/0xb0 [ 37.688029] sctp_destruct_sock+0x70/0x80 [ 37.692163] ? sctp_accept+0x730/0x730 [ 37.696037] __sk_destruct+0x93/0x8e0 [ 37.699825] ? proto_unregister+0x5e0/0x5e0 [ 37.704137] ? mark_held_locks+0xc4/0x120 [ 37.708279] __sk_free+0xf4/0x370 [ 37.711721] sk_free+0x30/0x50 [ 37.714906] sctp_close+0x667/0x940 [ 37.718526] ? sctp_init_sock+0x1430/0x1430 [ 37.722834] ? do_raw_spin_unlock+0x1e0/0x310 [ 37.727323] ? ip_mc_drop_socket+0x16/0x270 [ 37.731635] inet_release+0xfe/0x230 [ 37.735341] inet6_release+0x51/0x80 [ 37.739032] __sock_release+0x236/0x330 [ 37.742984] sctp_ctrlsock_exit+0x67/0x90 [ 37.747109] ops_exit_list+0x9a/0x190 [ 37.750889] cleanup_net+0x4a3/0xd30 [ 37.754583] ? net_drop_ns+0x90/0x90 [ 37.758283] process_one_work+0x7ac/0x1890 [ 37.762500] ? pwq_dec_nr_in_flight+0x360/0x360 [ 37.767148] ? lock_acquire+0x197/0x510 [ 37.771097] ? rwlock_bug.part.0+0xe0/0xe0 [ 37.775309] ? worker_thread+0x1e0/0x1330 [ 37.779434] worker_thread+0x6c1/0x1330 [ 37.783392] ? process_one_work+0x1890/0x1890 [ 37.787879] ? process_one_work+0x1890/0x1890 [ 37.792352] kthread+0x35e/0x530 [ 37.795695] ? kthread_create_on_node+0xd0/0xd0 [ 37.800343] ret_from_fork+0x24/0x30 [ 37.804037] ================================================================================ [ 38.085917] can: request_module (can-proto-0) failed. [ 38.099024] can: request_module (can-proto-0) failed. [ 38.110147] can: request_module (can-proto-0) failed. [ 38.158005] audit: type=1400 audit(1601334334.005:9): 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