Warning: Permanently added '10.128.0.173' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   39.726949] audit: type=1400 audit(1601633751.912:8): avc:  denied  { execmem } for  pid=6498 comm="syz-executor747" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1
[   39.753401] ================================================================================
[   39.762127] UBSAN: Undefined behaviour in arch/x86/kernel/uprobes.c:276:56
[   39.769118] index 4 is out of range for type 'insn_byte_t [4]'
[   39.775071] CPU: 0 PID: 6498 Comm: syz-executor747 Not tainted 4.19.149-syzkaller #0
[   39.782940] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   39.792269] Call Trace:
[   39.794844]  dump_stack+0x22c/0x33e
[   39.798462]  ubsan_epilogue+0xe/0x3a
[   39.802244]  __ubsan_handle_out_of_bounds.cold+0x63/0x6f
[   39.808385]  arch_uprobe_analyze_insn+0x9d8/0xaa0
[   39.813208]  ? default_abort_op+0x110/0x110
[   39.817509]  ? do_read_cache_page+0xfe/0x11d0
[   39.821988]  ? copy_insn+0x3f3/0x4f0
[   39.825687]  uprobe_mmap+0x8c2/0xa70
[   39.829397]  ? uprobe_apply+0x160/0x160
[   39.833371]  mmap_region+0x552/0x1510
[   39.837329]  ? vm_brk+0x20/0x20
[   39.840598]  ? security_mmap_addr+0x73/0x90
[   39.844902]  ? get_unmapped_area+0x296/0x3b0
[   39.849291]  do_mmap+0x8e8/0x1080
[   39.853596]  vm_mmap_pgoff+0x197/0x200
[   39.857464]  ? vma_is_stack_for_current+0xc0/0xc0
[   39.862285]  ? copy_fd_bitmaps+0x2c0/0x2c0
[   39.866501]  ? perf_event_set_output+0x4c0/0x4c0
[   39.871236]  ksys_mmap_pgoff+0x2d1/0x660
[   39.875365]  ? find_mergeable_anon_vma+0x260/0x260
[   39.880284]  ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe
[   39.885626]  ? trace_hardirqs_off_caller+0x6e/0x210
[   39.890646]  ? do_syscall_64+0x21/0x670
[   39.894607]  do_syscall_64+0xf9/0x670
[   39.898389]  entry_SYSCALL_64_after_hwframe+0x49/0xbe
[   39.903571] RIP: 0033:0x440379
[   39.906795] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00
[   39.925782] RSP: 002b:00007ffc3bc307e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
[   39.933479] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 0000000000440379
[   39.940989] RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020007000
[   39.948249] RBP: 00000000006ca018 R08: 0000000000000003 R09: 0000000000000000
[   39.955503] R10: 0000000000000412 R11: 0000000000000246 R12: 0000000000401b80
[   39.962793] R13: 0000000000401c10 R14: 0000000000000000 R15: 0000000000000000
[   39.970411] =========================================================================