[PATCH] Added Restriction on base value
Aditya Upadhyay
aadit0402@gmail.com
Mon Aug 13 07:31:00 GMT 2018
---
newlib/libc/stdlib/strtoimax.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/newlib/libc/stdlib/strtoimax.c b/newlib/libc/stdlib/strtoimax.c
index 6901612..c3f27df 100644
--- a/newlib/libc/stdlib/strtoimax.c
+++ b/newlib/libc/stdlib/strtoimax.c
@@ -91,6 +91,9 @@ _strtoimax_l(struct _reent *rptr, const char * __restrict nptr,
if (base == 0)
base = c == '0' ? 8 : 10;
+ if (base < 2 || base > 36)
+ goto noconv;
+
/*
* Compute the cutoff value between legal numbers and illegal
* numbers. That is the largest legal value, divided by the
@@ -135,6 +138,7 @@ _strtoimax_l(struct _reent *rptr, const char * __restrict nptr,
acc = neg ? INTMAX_MIN : INTMAX_MAX;
rptr->_errno = ERANGE;
} else if (!any) {
+noconv:
rptr->_errno = EINVAL;
} else if (neg)
acc = -acc;
--
2.7.4
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