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limit uc_mem_(read|write) size to INT_MAX #219

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limit uc_mem_(read|write) size to INT_MAX #219

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8 changes: 8 additions & 0 deletions uc.c
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Original file line number Diff line number Diff line change
Expand Up @@ -341,6 +341,10 @@ uc_err uc_mem_read(uc_engine *uc, uint64_t address, void *_bytes, size_t size)
{
uint8_t *bytes = _bytes;

// qemu cpu_physical_memory_rw() size is an int
if (size > INT_MAX)
return UC_ERR_ARG;

if (!check_mem_area(uc, address, size))
return UC_ERR_READ_UNMAPPED;

Expand Down Expand Up @@ -371,6 +375,10 @@ uc_err uc_mem_write(uc_engine *uc, uint64_t address, const void *_bytes, size_t
{
const uint8_t *bytes = _bytes;

// qemu cpu_physical_memory_rw() size is an int
if (size > INT_MAX)
return UC_ERR_ARG;

if (!check_mem_area(uc, address, size))
return UC_ERR_WRITE_UNMAPPED;

Expand Down