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

Fix UB in js_dtoa1

Browse source
This commit is contained in:
Saúl Ibarra Corretgé 2023-12-22 22:50:02 +01:00
parent fad030bef2
commit 2fb838c803
1 changed files with 3 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
quickjs.c
View file

@ -11110,8 +11110,10 @@ static void js_dtoa1(char (*buf)[JS_DTOA_BUF_SIZE], double d,
} else if (flags == JS_DTOA_VAR_FORMAT) {
int64_t i64;
char buf1[70], *ptr;
if (d > (double)MAX_SAFE_INTEGER || d < (double)-MAX_SAFE_INTEGER)
goto generic_conv;
i64 = (int64_t)d;
if (d != i64 || i64 > MAX_SAFE_INTEGER || i64 < -MAX_SAFE_INTEGER)
if (d != i64)
goto generic_conv;
/* fast path for integers */
ptr = i64toa(buf1 + sizeof(buf1), i64, radix);