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fix fmt_pairs stack overflow in calcElemSize and decodeSimpleFormat

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This commit is contained in:
uwezkhan
2026-06-20 15:31:34 +05:30
parent 4f17d30997
commit fc746f35b9
2 changed files with 28 additions and 2 deletions
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modules/core/src/persistence.cpp
+2 -2
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@@ -266,7 +266,7 @@ int decodeFormat( const char* dt, int* fmt_pairs, int max_len )
int calcElemSize( const char* dt, int initial_size )
{
int size = 0;
int fmt_pairs[CV_FS_MAX_FMT_PAIRS], i, fmt_pair_count;
int fmt_pairs[CV_FS_MAX_FMT_PAIRS*2], i, fmt_pair_count;
int comp_size;
fmt_pair_count = decodeFormat( dt, fmt_pairs, CV_FS_MAX_FMT_PAIRS );
@@ -316,7 +316,7 @@ int calcStructSize( const char* dt, int initial_size )
int decodeSimpleFormat( const char* dt )
{
int elem_type = -1;
int fmt_pairs[CV_FS_MAX_FMT_PAIRS], fmt_pair_count;
int fmt_pairs[CV_FS_MAX_FMT_PAIRS*2], fmt_pair_count;
fmt_pair_count = decodeFormat( dt, fmt_pairs, CV_FS_MAX_FMT_PAIRS );
if( fmt_pair_count != 1 || fmt_pairs[0] >= CV_CN_MAX)