==24642==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7ffe00450850 at pc 0x7f2043eef5e3 bp 0x7ffe00450660 sp 0x7ffe0044fdf0
WRITE of size 3 at 0x7ffe00450850 thread T0
#0 0x7f2043eef5e2 in __interceptor_vsprintf /var/tmp/portage/sys-devel/gcc-8.2.0-r2/work/gcc-8.2.0/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:1522
#1 0x7f2043eef956 in __interceptor_sprintf /var/tmp/portage/sys-devel/gcc-8.2.0-r2/work/gcc-8.2.0/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:1553
#2 0x4026f1 in prf_test unit/test-prf-sha1.c:64
#3 0x407478 in l_test_run ell/test.c:83
#4 0x4029e3 in main unit/test-prf-sha1.c:130
#5 0x7f2042dd9ed9 in __libc_start_main (/lib64/libc.so.6+0x20ed9)
#6 0x401f79 in _start (/home/denkenz/iwd-master/unit/test-prf-sha1+0x401f79)
