Warning: Permanently added '10.128.15.192' (ECDSA) to the list of known hosts. 2020/09/23 10:52:27 fuzzer started 2020/09/23 10:52:27 connecting to host at 10.128.0.105:34969 2020/09/23 10:52:27 checking machine... 2020/09/23 10:52:27 checking revisions... 2020/09/23 10:52:27 testing simple program... syzkaller login: [ 36.547912] audit: type=1400 audit(1600858347.470:8): avc: denied { execmem } for pid=6386 comm="syz-executor.0" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 36.604151] IPVS: ftp: loaded support on port[0] = 21 2020/09/23 10:52:27 building call list... [ 37.215360] ================================================================================ [ 37.224098] UBSAN: Undefined behaviour in ./include/crypto/hash.h:686:9 [ 37.230836] member access within null pointer of type 'struct crypto_shash' [ 37.237941] CPU: 0 PID: 225 Comm: kworker/u4:3 Not tainted 4.14.199-syzkaller #0 [ 37.245463] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 37.254832] Workqueue: netns cleanup_net [ 37.258884] Call Trace: [ 37.261468] dump_stack+0x21b/0x32e [ 37.265090] ? dma_virt_alloc+0x82/0x82 [ 37.269058] ? ubsan_prologue+0x29/0x50 [ 37.273041] ubsan_epilogue+0xe/0x3a [ 37.276758] handle_null_ptr_deref+0x78/0x80 [ 37.281170] __ubsan_handle_type_mismatch_v1+0x81/0xb0 [ 37.286445] sctp_destruct_sock+0x70/0x80 [ 37.290586] ? sctp_accept+0x730/0x730 [ 37.294465] __sk_destruct+0x93/0x8e0 [ 37.298342] ? proto_unregister+0x5e0/0x5e0 [ 37.302656] ? mark_held_locks+0xc4/0x120 [ 37.306802] __sk_free+0xf4/0x370 [ 37.310248] sk_free+0x30/0x50 [ 37.313434] sctp_close+0x667/0x940 [ 37.317073] ? sctp_init_sock+0x1430/0x1430 [ 37.321393] ? do_raw_spin_unlock+0x1e0/0x310 [ 37.325890] ? ip_mc_drop_socket+0x16/0x270 [ 37.330196] inet_release+0xfe/0x230 [ 37.333896] inet6_release+0x51/0x80 [ 37.337603] __sock_release+0x236/0x330 [ 37.341557] sctp_ctrlsock_exit+0x67/0x90 [ 37.345700] ops_exit_list+0x9a/0x190 [ 37.349483] cleanup_net+0x4a3/0xd30 [ 37.353177] ? net_drop_ns+0x90/0x90 [ 37.356898] process_one_work+0x7ac/0x1890 [ 37.361131] ? pwq_dec_nr_in_flight+0x360/0x360 [ 37.365784] ? lock_acquire+0x197/0x510 [ 37.369738] ? rwlock_bug.part.0+0xe0/0xe0 [ 37.373969] ? worker_thread+0x1e0/0x1330 [ 37.378102] worker_thread+0x6c1/0x1330 [ 37.382069] ? process_one_work+0x1890/0x1890 [ 37.386542] ? process_one_work+0x1890/0x1890 [ 37.391023] kthread+0x35e/0x530 [ 37.394371] ? kthread_create_on_node+0xd0/0xd0 [ 37.399018] ret_from_fork+0x24/0x30 [ 37.402719] ================================================================================ [ 37.679484] can: request_module (can-proto-0) failed. [ 37.700377] can: request_module (can-proto-0) failed. [ 37.718468] can: request_module (can-proto-0) failed. [ 37.795004] audit: type=1400 audit(1600858348.721:9): 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