Index: /trunk/src/VBox/Runtime/r0drv/solaris/vbi/i86pc/os/vbi.c
===================================================================
--- /trunk/src/VBox/Runtime/r0drv/solaris/vbi/i86pc/os/vbi.c	(revision 37947)
+++ /trunk/src/VBox/Runtime/r0drv/solaris/vbi/i86pc/os/vbi.c	(revision 37948)
@@ -287,5 +287,6 @@
 		/* Only 64-bit kernels */
 		long snv_version = 0;
-		if (!strncmp(utsname.version, "snv_", 4))
+		if (  !strncmp(utsname.version, "snv_", 4)
+			&& strlen(utsname.version) > 4)
 		{
 			ddi_strtol(utsname.version + 4, NULL /* endptr */, 0, &snv_version);