UBSAN error

Waf: Entering directory `/home/eric/bloom/bde/build'
Waf: Using 8 jobs (change with -j)
[278/279] Linking ../../../build/groups/bsl/bslstl/bslstl_sharedptr.t
[279/279] Processing ../../../build/groups/bsl/bslstl/bslstl_sharedptr.t
Waf: Leaving directory `/home/eric/bloom/bde/build'
Test Summary 
  tests that pass 0/1 
  tests that fail 1/1 
[/home/eric/bloom/bde/build/groups/bsl/bslstl/bslstl_sharedptr.t (TEST)] <<<<<<<<<< 
[13:10:17] TEST START
[13:10:18] CASE  2: SUCCESS
[13:10:18] CASE  1: SUCCESS
[13:10:18] CASE  4: SUCCESS
[13:10:18] CASE  3: SUCCESS
[13:10:18] CASE  5: SUCCESS
[13:10:18] CASE  7: SUCCESS
[13:10:18] CASE  6: SUCCESS
[13:10:18] CASE  8: SUCCESS
[13:10:18] CASE  9: SUCCESS
[13:10:18] CASE 10: SUCCESS
[13:10:18] CASE 13: SUCCESS
[13:10:18] CASE 11: SUCCESS
[13:10:18] CASE 12: SUCCESS
[13:10:18] CASE 14: SUCCESS
[13:10:18] CASE 15: SUCCESS
[13:10:18] CASE 16: SUCCESS
[13:10:18] CASE 18: SUCCESS
[13:10:18] CASE 20: SUCCESS
[13:10:18] CASE 17: SUCCESS
[13:10:18] CASE 19: SUCCESS
[13:10:18] CASE 21: SUCCESS
[13:10:18] CASE 24: SUCCESS
[13:10:18] CASE 23: SUCCESS
[13:10:18] CASE 22: SUCCESS
[13:10:18] CASE 26: SUCCESS
[13:10:18] CASE 25: SUCCESS
[13:10:18] CASE 27: SUCCESS
[13:10:18] CASE 29: SUCCESS
[13:10:18] CASE 28: SUCCESS
[13:10:18] CASE 30: SUCCESS
[13:10:18] CASE 31: SUCCESS
[13:10:18] CASE 32: SUCCESS
[13:10:18] CASE 34: SUCCESS
[13:10:18] CASE 33: SUCCESS
[13:10:18] CASE 35: SUCCESS
[13:10:18] CASE 36: SUCCESS
[13:10:18] CASE 37: FAILURE (rc 1)
/home/eric/bloom/bde/groups/bsl/bslalg/bslalg_arrayprimitives.h:2981:26: runtime error: null pointer passed as argument 2, which is declared to never be null
/usr/include/string.h:47:28: note: nonnull attribute specified here

[13:10:18] CASE 38: SUCCESS

>>>>>>>>>> 
1/1 tests have failed. (1.051s)