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Fix CBOR half-float assertion bounds (#5335)

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Signed-off-by: Patrick Armstrong <patrick@erpassistant.ai>
This commit is contained in:
Patrick10199
2026-07-30 23:38:13 +02:00
committed by GitHub
parent 58ce09dcfd
commit 868506dcc0
5 changed files with 17 additions and 18 deletions
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include/nlohmann/detail/input/binary_reader.hpp
+6 -6
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@@ -896,7 +896,7 @@ class binary_reader
const auto byte1 = static_cast<unsigned char>(byte1_raw);
const auto byte2 = static_cast<unsigned char>(byte2_raw);
// Code from RFC 7049, Appendix D, Figure 3:
// Code from RFC 8949, Appendix D, Figure 3:
// As half-precision floating-point numbers were only added
// to IEEE 754 in 2008, today's programming platforms often
// still only have limited support for them. It is very
@@ -909,8 +909,8 @@ class binary_reader
{
const int exp = (half >> 10u) & 0x1Fu;
const unsigned int mant = half & 0x3FFu;
JSON_ASSERT(0 <= exp&& exp <= 32);
JSON_ASSERT(mant <= 1024);
JSON_ASSERT(exp <= 31);
JSON_ASSERT(mant <= 1023);
switch (exp)
{
case 0:
@@ -2484,7 +2484,7 @@ class binary_reader
const auto byte1 = static_cast<unsigned char>(byte1_raw);
const auto byte2 = static_cast<unsigned char>(byte2_raw);
// Code from RFC 7049, Appendix D, Figure 3:
// Code from RFC 8949, Appendix D, Figure 3:
// As half-precision floating-point numbers were only added
// to IEEE 754 in 2008, today's programming platforms often
// still only have limited support for them. It is very
@@ -2497,8 +2497,8 @@ class binary_reader
{
const int exp = (half >> 10u) & 0x1Fu;
const unsigned int mant = half & 0x3FFu;
JSON_ASSERT(0 <= exp&& exp <= 32);
JSON_ASSERT(mant <= 1024);
JSON_ASSERT(exp <= 31);
JSON_ASSERT(mant <= 1023);
switch (exp)
{
case 0: