diff options
| author | Cyrille Bagard <nocbos@gmail.com> | 2023-10-22 19:23:03 (GMT) |
|---|---|---|
| committer | Cyrille Bagard <nocbos@gmail.com> | 2023-10-22 19:23:03 (GMT) |
| commit | b679b0a3e8ac54570e285281da43e7fa2c861ebd (patch) | |
| tree | 160c42c04b3f42d09c77e0b0ded966a67fa6b3a2 /src | |
| parent | c74d1a9d8f1430b4e4f3989b12b9953cbb8fed50 (diff) | |
Fortify the parsing of hexadecimal definitions.
Diffstat (limited to 'src')
| -rw-r--r-- | src/analysis/scan/grammar.y | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/analysis/scan/grammar.y b/src/analysis/scan/grammar.y index f603c85..02e5973 100644 --- a/src/analysis/scan/grammar.y +++ b/src/analysis/scan/grammar.y @@ -788,6 +788,7 @@ YY_DECL; } | "~" hex_token { + if ($2 == NULL) YYERROR; $$ = g_scan_token_node_not_new($2); } @@ -845,6 +846,9 @@ YY_DECL; hex_choices : hex_token "|" hex_token { + if ($1 == NULL) YYERROR; + if ($3 == NULL) YYERROR; + $$ = g_scan_token_node_choice_new(); g_scan_token_node_choice_add(G_SCAN_TOKEN_NODE_CHOICE($$), $1); g_object_unref(G_OBJECT($1)); @@ -853,6 +857,8 @@ YY_DECL; } | hex_choices "|" hex_token { + if ($3 == NULL) YYERROR; + $$ = $1; g_scan_token_node_choice_add(G_SCAN_TOKEN_NODE_CHOICE($$), $3); g_object_unref(G_OBJECT($3)); |