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mesa/program: fix memory leak triggered by invalid extended swizzle selector

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For instance, with "piglit/bin/asmparsertest ARBfp1.0 tests/asmparsertest/shaders/ARBfp1.0/swz-04.txt":
Direct leak of 18 byte(s) in 2 object(s) allocated from:
    #0 0x7f97e99050 in __interceptor_strdup (/usr/lib64/libasan.so.6+0x59050)
    #1 0x7f8d4160ac in handle_ident ../src/mesa/program/program_lexer.l:129
    #2 0x7f8d4160ac in _mesa_program_lexer_lex ../src/mesa/program/program_lexer.l:312
    #3 0x7f8d402b50 in yylex ../src/mesa/program/program_parse.y:289
    #4 0x7f8d402b50 in yyparse src/mesa/program/program_parse.tab.c:2140
    #5 0x7f8d40d01c in _mesa_parse_arb_program ../src/mesa/program/program_parse.y:2590
    #6 0x7f8d3f77ac in _mesa_parse_arb_fragment_program ../src/mesa/program/arbprogparse.c:82
    #7 0x7f8d3ad468 in set_program_string ../src/mesa/main/arbprogram.c:402

Signed-off-by: Patrick Lerda <patrick9876@free.fr>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21728>
This commit is contained in:
Patrick Lerda 2023-02-28 17:49:14 +01:00 • committed by Marge Bot
parent 57557e8815
commit 444250a5e7
1 changed files with 1 additions and 0 deletions
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src/mesa/program/program_parse.y
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@ -684,6 +684,7 @@ extSwizSel: INTEGER
if (strlen($1) > 1) {
yyerror(& @1, state, "invalid extended swizzle selector");
free($1);
YYERROR;
}