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Check size of argument #597

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Merged
sjaeckel merged 1 commit into from
Apr 20, 2026
Merged

Check size of argument #597

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3 changes: 3 additions & 0 deletions mp_from_sbin.c
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,9 @@ mp_err mp_from_sbin(mp_int *a, const uint8_t *buf, size_t size)
{
mp_err err;

if (size == 0) {
return MP_VAL;
}
/* read magnitude */
if ((err = mp_from_ubin(a, buf + 1, size - 1u)) != MP_OKAY) {
return err;
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