src/cmd/link/internal/ld/pe.go | 12 ++++++++++++

diff --git a/src/cmd/link/internal/ld/pe.go b/src/cmd/link/internal/ld/pe.go
index c9cb25dbe5b8b626180a1218451e2e7c179662e0..5d68ca7d9ca7728eec3e51f84842fcffb4b95464 100644
--- a/src/cmd/link/internal/ld/pe.go
+++ b/src/cmd/link/internal/ld/pe.go
@@ -1515,6 +1515,18 @@ 		Exitf("unknown PE architecture: %v", ctxt.Arch.Family)
 	case sys.AMD64, sys.I386, sys.ARM:
 	}
 
+	if rsrcsym != 0 {
+		// The resource symbol may have been copied to the mmap'd
+		// output buffer. If so, certain conditions can cause that
+		// mmap'd output buffer to be munmap'd before we get a chance
+		// to use it. To avoid any issues we copy the data to the heap
+		// when the resource symbol exists.
+		rsrc := ctxt.loader.Syms[rsrcsym]
+		data := make([]byte, len(rsrc.P))
+		copy(data, rsrc.P)
+		rsrc.P = data
+	}
+
 	t := pefile.addSection(".text", int(Segtext.Length), int(Segtext.Length))
 	t.characteristics = IMAGE_SCN_CNT_CODE | IMAGE_SCN_CNT_INITIALIZED_DATA | IMAGE_SCN_MEM_EXECUTE | IMAGE_SCN_MEM_READ
 	if ctxt.LinkMode == LinkExternal {