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libnm-core: fix wrong memory access in tests

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==16725==ERROR: AddressSanitizer: global-buffer-overflow on address 0x0000005a159f at pc 0x00000046fc1b bp 0x7fff6038f900 sp 0x7fff6038f8f0
READ of size 1 at 0x0000005a159f thread T0
    #0 0x46fc1a in _do_test_unescape_spaces libnm-core/tests/test-general.c:7791
    #1 0x46fe5b in test_nm_utils_unescape_spaces libnm-core/tests/test-general.c:7810
    #2 0x7f4ac5fe7fc9 in test_case_run gtestutils.c:2318
    #3 0x7f4ac5fe7fc9 in g_test_run_suite_internal gtestutils.c:2403
    #4 0x7f4ac5fe7e83 in g_test_run_suite_internal gtestutils.c:2415
    #5 0x7f4ac5fe7e83 in g_test_run_suite_internal gtestutils.c:2415
    #6 0x7f4ac5fe8281 in g_test_run_suite gtestutils.c:2490
    #7 0x7f4ac5fe82a4 in g_test_run (/lib64/libglib-2.0.so.0+0x772a4)
    #8 0x48240d in main libnm-core/tests/test-general.c:7994
    #9 0x7f4ac5dc9412 in __libc_start_main (/lib64/libc.so.6+0x24412)
    #10 0x423ffd in _start (/home/bgalvani/work/NetworkManager/libnm-core/tests/test-general+0x423ffd)

0x0000005a159f is located 49 bytes to the right of global variable '*.LC370' defined in 'libnm-core/tests/test-general.c' (0x5a1560) of size 14
  '*.LC370' is ascii string 'nick-5, green'
0x0000005a159f is located 1 bytes to the left of global variable '*.LC371' defined in 'libnm-core/tests/test-general.c' (0x5a15a0) of size 1
  '*.LC371' is ascii string ''
SUMMARY: AddressSanitizer: global-buffer-overflow libnm-core/tests/test-general.c:7791 in _do_test_unescape_spaces
This commit is contained in:
Beniamino Galvani 2019-04-08 17:38:16 +02:00
parent 2fe9141960
commit 834dfd72c5
1 changed files with 1 additions and 1 deletions
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2
libnm-core/tests/test-general.c
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@ -8075,7 +8075,7 @@ _do_test_unescape_spaces (const char *in, const char *out)
gboolean append = nmtst_get_rand_bool ();
char ch = nmtst_rand_select (' ', '\t');
if (append && out[strlen (out) - 1] == '\\')
if (append && out[0] && out[strlen (out) - 1] == '\\')
append = FALSE;
g_string_insert_c (str_in, append ? -1 : 0, ch);