igvm: fix memory leak on failed memory region init

When memory_region_init_* fail, `igvm_pages` is not freed causing a leak.

Free `igvm_pages` in the error path.

Fixes: c1d466d267cf ("backends/igvm: Add IGVM loader and configuration")
Signed-off-by: Luigi Leonardi <leonardi@redhat.com>
Message-ID: <20260330-igvm_fixes-v1-2-03587a5a808b@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

diff --git a/backends/igvm.c b/backends/igvm.c
index 50f0d6fb9a7bacddce91f095b6e2710ecbc79c6f..c347d0c17e7ee744e450d42e677946abad8a7211 100644 (file)
--- a/backends/igvm.c
+++ b/backends/igvm.c
@@ -216,11 +216,13 @@ static void *qigvm_prepare_memory(QIgvm *ctx, uint64_t addr, uint64_t size,
             ctx->machine_state->cgs->require_guest_memfd) {
             if (!memory_region_init_ram_guest_memfd(igvm_pages, NULL,
                                                     region_name, size, errp)) {
+                g_free(igvm_pages);
                 return NULL;
             }
         } else {
             if (!memory_region_init_ram(igvm_pages, NULL, region_name, size,
                                         errp)) {
+                g_free(igvm_pages);
                 return NULL;
             }
         }