Warning: Permanently added '10.128.1.51' (ECDSA) to the list of known hosts. 2020/09/20 13:32:17 fuzzer started 2020/09/20 13:32:17 connecting to host at 10.128.0.105:34521 2020/09/20 13:32:17 checking machine... 2020/09/20 13:32:17 checking revisions... 2020/09/20 13:32:18 testing simple program... syzkaller login: [ 37.535464] audit: type=1400 audit(1600608738.018:8): avc: denied { execmem } for pid=6360 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 37.590175] IPVS: ftp: loaded support on port[0] = 21 2020/09/20 13:32:18 building call list... [ 38.170913] ================================================================================ [ 38.179627] UBSAN: Undefined behaviour in ./include/crypto/hash.h:686:9 [ 38.186372] member access within null pointer of type 'struct crypto_shash' [ 38.193519] CPU: 0 PID: 2347 Comm: kworker/u4:4 Not tainted 4.14.198-syzkaller #0 [ 38.201127] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 38.210479] Workqueue: netns cleanup_net [ 38.214530] Call Trace: [ 38.217113] dump_stack+0x21b/0x32e [ 38.220734] ? dma_virt_alloc+0x82/0x82 [ 38.224698] ? ubsan_prologue+0x29/0x50 [ 38.228668] ubsan_epilogue+0xe/0x3a [ 38.232374] handle_null_ptr_deref+0x78/0x80 [ 38.236790] __ubsan_handle_type_mismatch_v1+0x81/0xb0 [ 38.242063] sctp_destruct_sock+0x70/0x80 [ 38.246297] ? sctp_accept+0x730/0x730 [ 38.250205] __sk_destruct+0x93/0x8e0 [ 38.254006] ? proto_unregister+0x5e0/0x5e0 [ 38.258323] ? mark_held_locks+0xc4/0x120 [ 38.262474] __sk_free+0xf4/0x370 [ 38.265919] sk_free+0x30/0x50 [ 38.269104] sctp_close+0x667/0x940 [ 38.272730] ? sctp_init_sock+0x1430/0x1430 [ 38.277062] ? do_raw_spin_unlock+0x1e0/0x310 [ 38.282162] ? ip_mc_drop_socket+0x16/0x270 [ 38.286478] inet_release+0xfe/0x230 [ 38.290186] inet6_release+0x51/0x80 [ 38.293895] __sock_release+0x236/0x330 [ 38.297862] sctp_ctrlsock_exit+0x67/0x90 [ 38.302014] ops_exit_list+0x9a/0x190 [ 38.305827] cleanup_net+0x4a3/0xd30 [ 38.309536] ? net_drop_ns+0x90/0x90 [ 38.313257] process_one_work+0x7ac/0x1890 [ 38.317492] ? pwq_dec_nr_in_flight+0x360/0x360 [ 38.322157] ? lock_acquire+0x197/0x510 [ 38.326126] ? rwlock_bug.part.0+0xe0/0xe0 [ 38.330363] ? worker_thread+0x1e0/0x1330 [ 38.334517] worker_thread+0x6c1/0x1330 [ 38.338501] ? process_one_work+0x1890/0x1890 [ 38.342996] ? process_one_work+0x1890/0x1890 [ 38.347484] kthread+0x35e/0x530 [ 38.350931] ? kthread_create_on_node+0xd0/0xd0 [ 38.355610] ret_from_fork+0x24/0x30 [ 38.359324] ================================================================================ [ 38.618928] can: request_module (can-proto-0) failed. [ 38.631652] can: request_module (can-proto-0) failed. [ 38.644633] can: request_module (can-proto-0) failed. [ 38.695782] audit: type=1400 audit(1600608739.179:9): avc: denied { create } for pid=6344 comm="syz-fuzzer" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=dccp_socket permissive=1