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winscard: Use SecureZeroMemory() to clear magic fields.

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Signed-off-by: Eric Pouech <epouech@codeweavers.com>
This commit is contained in:
Eric Pouech 2023-11-08 09:27:08 +01:00 committed by Alexandre Julliard
parent 4502eb56ba
commit c20a0dc6a4
1 changed files with 4 additions and 2 deletions
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6
dlls/winscard/winscard.c
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@ -205,7 +205,8 @@ LONG WINAPI SCardReleaseContext( SCARDCONTEXT context )
params.handle = handle->unix_handle;
ret = UNIX_CALL( scard_release_context, &params );
handle->magic = 0;
/* Ensure compiler doesn't optimize out the assignment with 0. */
SecureZeroMemory( &handle->magic, sizeof(handle->magic) );
free( handle );
TRACE( "returning %#lx\n", ret );
@ -794,7 +795,8 @@ LONG WINAPI SCardDisconnect( SCARDHANDLE connect, DWORD disposition )
params.disposition = disposition;
if (!(ret = UNIX_CALL( scard_disconnect, &params )))
{
handle->magic = 0;
/* Ensure compiler doesn't optimize out the assignment with 0. */
SecureZeroMemory( &handle->magic, sizeof(handle->magic) );
free( handle );
}
TRACE( "returning %#lx\n", ret );