Warning: Permanently added '10.128.15.203' (ECDSA) to the list of known hosts. 2020/09/21 08:07:31 fuzzer started 2020/09/21 08:07:31 connecting to host at 10.128.0.105:40509 2020/09/21 08:07:31 checking machine... 2020/09/21 08:07:31 checking revisions... 2020/09/21 08:07:31 testing simple program... syzkaller login: [ 36.524353] audit: type=1400 audit(1600675651.561:8): avc: denied { execmem } for pid=6361 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 36.579674] IPVS: ftp: loaded support on port[0] = 21 2020/09/21 08:07:31 building call list... [ 37.166679] ================================================================================ [ 37.175397] UBSAN: Undefined behaviour in ./include/crypto/hash.h:686:9 [ 37.182154] member access within null pointer of type 'struct crypto_shash' [ 37.189257] CPU: 0 PID: 22 Comm: kworker/u4:1 Not tainted 4.14.198-syzkaller #0 [ 37.196704] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.206067] Workqueue: netns cleanup_net [ 37.210132] Call Trace: [ 37.212728] dump_stack+0x21b/0x32e [ 37.216365] ? dma_virt_alloc+0x82/0x82 [ 37.220345] ? ubsan_prologue+0x29/0x50 [ 37.224333] ubsan_epilogue+0xe/0x3a [ 37.228319] handle_null_ptr_deref+0x78/0x80 [ 37.232739] __ubsan_handle_type_mismatch_v1+0x81/0xb0 [ 37.238034] sctp_destruct_sock+0x70/0x80 [ 37.242187] ? sctp_accept+0x730/0x730 [ 37.246079] __sk_destruct+0x93/0x8e0 [ 37.249891] ? proto_unregister+0x5e0/0x5e0 [ 37.254291] ? mark_held_locks+0xc4/0x120 [ 37.258562] __sk_free+0xf4/0x370 [ 37.262021] sk_free+0x30/0x50 [ 37.265233] sctp_close+0x667/0x940 [ 37.268877] ? sctp_init_sock+0x1430/0x1430 [ 37.273203] ? do_raw_spin_unlock+0x1e0/0x310 [ 37.277711] ? ip_mc_drop_socket+0x16/0x270 [ 37.282046] inet_release+0xfe/0x230 [ 37.285775] inet6_release+0x51/0x80 [ 37.289636] __sock_release+0x236/0x330 [ 37.293618] sctp_ctrlsock_exit+0x67/0x90 [ 37.297781] ops_exit_list+0x9a/0x190 [ 37.301590] cleanup_net+0x4a3/0xd30 [ 37.305361] ? net_drop_ns+0x90/0x90 [ 37.309095] process_one_work+0x7ac/0x1890 [ 37.313343] ? pwq_dec_nr_in_flight+0x360/0x360 [ 37.318022] ? lock_acquire+0x197/0x510 [ 37.322003] ? rwlock_bug.part.0+0xe0/0xe0 [ 37.326245] ? worker_thread+0x1e0/0x1330 [ 37.330487] worker_thread+0x6c1/0x1330 [ 37.334480] ? process_one_work+0x1890/0x1890 [ 37.338983] ? process_one_work+0x1890/0x1890 [ 37.343488] kthread+0x35e/0x530 [ 37.346949] ? kthread_create_on_node+0xd0/0xd0 [ 37.351624] ret_from_fork+0x24/0x30 [ 37.355354] ================================================================================ [ 37.685106] can: request_module (can-proto-0) failed. [ 37.710574] can: request_module (can-proto-0) failed. [ 37.730218] can: request_module (can-proto-0) failed. [ 37.780315] audit: type=1400 audit(1600675652.822:9): avc: denied { create } for pid=6345 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1