prog: don't require preallocated buffer for exec encoding

If we send exec encoding to the fuzzer, it's not necessary to serialize
exec encoding into existing buffer (currnetly we serialize directly into shmem).
So simplify code by serializing into a new slice.

1 files changed, 1 insertions, 2 deletions

diff --git a/tools/syz-imagegen/imagegen.go b/tools/syz-imagegen/imagegen.go
index d71e19d76..af64f77aa 100644
--- a/tools/syz-imagegen/imagegen.go
+++ b/tools/syz-imagegen/imagegen.go
@@ -825,8 +825,7 @@ func (img *Image) generateSize() error {
 	if err != nil {
 		return fmt.Errorf("failed to deserialize resulting program: %w", err)
 	}
-	exec := make([]byte, prog.ExecBufferSize)
-	if _, err := p.SerializeForExec(exec); err != nil {
+	if _, err := p.SerializeForExec(); err != nil {
 		return fmt.Errorf("failed to serialize for execution: %w", err)
 	}