diff options
| -rw-r--r-- | frontends/ilang/ilang_parser.y | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/frontends/ilang/ilang_parser.y b/frontends/ilang/ilang_parser.y index b4b9693da..4e0b62edd 100644 --- a/frontends/ilang/ilang_parser.y +++ b/frontends/ilang/ilang_parser.y @@ -430,10 +430,14 @@ sigspec: free($1); } | sigspec '[' TOK_INT ']' { + if ($3 >= $1->size() || $3 < 0) + rtlil_frontend_ilang_yyerror("bit index out of range"); $$ = new RTLIL::SigSpec($1->extract($3)); delete $1; } | sigspec '[' TOK_INT ':' TOK_INT ']' { + if ($3 >= $1->size() || $3 < 0 || $3 < $5) + rtlil_frontend_ilang_yyerror("invalid slice"); $$ = new RTLIL::SigSpec($1->extract($5, $3 - $5 + 1)); delete $1; } | |