fries/quickjs
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Fix UB left shift of negative number

Browse source
This commit is contained in:
Ben Noordhuis 2023-11-01 06:53:16 +01:00
parent 83e6fca8be
commit 4a8372a709
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
quickjs.c
View file

@ -34192,7 +34192,7 @@ static int JS_WriteBigNum(BCWriterState *s, JSValueConst obj)
e = a->expn + 3; e = a->expn + 3;
else else
e = a->expn; e = a->expn;
e = (e << 1) | a->sign; e = (e * 2) | a->sign;
if (e < INT32_MIN || e > INT32_MAX) { if (e < INT32_MIN || e > INT32_MAX) {
JS_ThrowInternalError(s->ctx, "bignum exponent is too large"); JS_ThrowInternalError(s->ctx, "bignum exponent is too large");
return -1; return -1;