diff options
| -rw-r--r-- | src/stardict.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/stardict.c b/src/stardict.c index cdd11a1..6775553 100644 --- a/src/stardict.c +++ b/src/stardict.c @@ -1014,6 +1014,10 @@ stardict_longest_common_collation_prefix (StardictDict *sd, u_strFromUTF8 (NULL, 0, &uc2_len, s2, -1, &error); error = U_ZERO_ERROR; + // Prevent undefined behaviour with VLAs. + if (!uc1_len || !uc2_len) + return 0; + UChar uc1[uc1_len]; UChar uc2[uc2_len]; u_strFromUTF8 (uc1, uc1_len, NULL, s1, -1, &error); |