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Fixed potential heap buffer overflow on large file reading

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Paul Bakker 2013-08-19 14:23:38 +02:00
parent 04784f57e4
commit 694d3aeb47
1 changed files with 2 additions and 1 deletions
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3
library/x509parse.c
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@ -1925,7 +1925,8 @@ static int load_file( const char *path, unsigned char **buf, size_t *n )
*n = (size_t) ftell( f ); *n = (size_t) ftell( f );
fseek( f, 0, SEEK_SET ); fseek( f, 0, SEEK_SET );
if( ( *buf = (unsigned char *) polarssl_malloc( *n + 1 ) ) == NULL ) if( *n + 1 == 0 ||
( *buf = (unsigned char *) polarssl_malloc( *n + 1 ) ) == NULL )
{ {
fclose( f ); fclose( f );
return( POLARSSL_ERR_X509_MALLOC_FAILED ); return( POLARSSL_ERR_X509_MALLOC_FAILED );