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Loading a binary chunk should not break assertions

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Although the execution of a bad binary chunk can crash the interpreter,
simply loading it should be safe.
This commit is contained in:
Roberto Ierusalimschy
2025-06-04 12:55:43 -03:00
parent 519c57d597
commit d05fe48bfd
2 changed files with 4 additions and 1 deletions
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2
lundump.c
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@@ -234,7 +234,7 @@ static void loadConstants (LoadState *S, Proto *f) {
f->source = NULL; f->source = NULL;
break; break;
} }
default: lua_assert(0); default: error(S, "invalid constant");
} }
} }
} }

3
manual/manual.of
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@@ -1402,6 +1402,9 @@ Chunks can also be precompiled into binary form;
see the program @idx{luac} and the function @Lid{string.dump} for details. see the program @idx{luac} and the function @Lid{string.dump} for details.
Programs in source and compiled forms are interchangeable; Programs in source and compiled forms are interchangeable;
Lua automatically detects the file type and acts accordingly @seeF{load}. Lua automatically detects the file type and acts accordingly @seeF{load}.
Be aware that, unlike source code,
the execution of maliciously crafted
bytecode can crash the interpreter.
} }