Buffer overflow in segmenter test ?

[John Darrington]

Tests 570 and 572 are failing when compiled with -fsanitize=address :


+READ of size 1 at 0x602000000052 thread T0
+    #0 0x409844 in segmenter_parse_mid_command__ 
/home/jdarrington/PSPP/pspp-master/src/language/lexer/segment.c:946
+    #1 0x40e032 in segmenter_push 
/home/jdarrington/PSPP/pspp-master/src/language/lexer/segment.c:1931
+    #2 0x40eb93 in check_segmentation 
/home/jdarrington/PSPP/pspp-master/tests/language/lexer/segment-test.c:147
+    #3 0x40e84c in main 
/home/jdarrington/PSPP/pspp-master/tests/language/lexer/segment-test.c:99
+    #4 0x7fc50a2dfd09 in __libc_start_main ../csu/libc-start.c:308
+    #5 0x4036e9 in _start 
(/Scratch/jdarrington/pspp-master-sanitize/tests/language/lexer/segment-test+0x4036e9)
+
+0x602000000052 is located 0 bytes to the right of 2-byte region 
[0x602000000050,0x602000000052)
+allocated by thread T0 here:
+    #0 0x7fc50a723e8f in __interceptor_malloc 
/home/jdarrington/SRC/gcc-10.2.0/libsanitizer/asan/asan_malloc_linux.cpp:145
+    #1 0x44036d in xmalloc /home/jdarrington/PSPP/pspp-master/gl/xmalloc.c:53
+    #2 0x44049f in xmemdup /home/jdarrington/PSPP/pspp-master/gl/xmalloc.c:124
+    #3 0x40e830 in main 
/home/jdarrington/PSPP/pspp-master/tests/language/lexer/segment-test.c:98
+    #4 0x7fc50a2dfd09 in __libc_start_main ../csu/libc-start.c:308

J'