diff --git a/meta/classes-global/base.bbclass b/meta/classes-global/base.bbclass
index 62f2814bb7..7de896ca7d 100644
--- a/meta/classes-global/base.bbclass
+++ b/meta/classes-global/base.bbclass
@@ -164,14 +164,40 @@ def setup_hosttools_dir(dest, toolsvar, d, fatal=True):
 
     if notfound and fatal:
         bb.fatal("The following required tools (as specified by HOSTTOOLS) appear to be unavailable in PATH, please install them in order to proceed:\n  %s" % " ".join(notfound))
+    
+def check_srcrev_set(d):
+    """
+    Inspect SRC_URI for SCM URIs missing a valid SRCREV.
+
+    Returns True if all SCM URIs have a valid SRCREV or AUTOREV set,
+    allowing get_hashvalue(d) to proceed normally.
+
+    Returns False if any SCM URI is missing SRCREV, suppressing
+    get_hashvalue(d) to prevent a FetchError parse crash.
+    """
+    import oe.qa
+    src_uri = (d.getVar('SRC_URI', False) or '').split()
+    pn = d.getVar('PN')
+    for uri in src_uri:
+        rev = oe.qa.check_uri_srcrev(pn, uri, d)
+        if rev is None:
+            # SRCREV missing — warn and suppress hash expansion
+            if bb.utils.contains('ERROR_QA', 'missing-srcrev', True, False, d):
+                bb.error("%s: SRCREV not set for %s" % (pn, uri))
+            elif bb.utils.contains('WARN_QA', 'missing-srcrev', True, False, d):
+                bb.warn("%s: SRCREV not set for %s" % (pn, uri))
+            return False
+        if rev and '${AUTOREV}' in rev:
+            return True
+    return True
+ 
 
 # We can't use vardepvalue against do_fetch directly since that would overwrite
 # the other task dependencies so we use an indirect function.
 python fetcher_hashes_dummyfunc() {
     return
 }
-fetcher_hashes_dummyfunc[vardepvalue] = "${@bb.fetch.get_hashvalue(d)}"
-
+fetcher_hashes_dummyfunc[vardepvalue] = "${@bb.fetch.get_hashvalue(d) if check_srcrev_set(d) else ''}"
 addtask fetch
 do_fetch[dirs] = "${DL_DIR}"
 do_fetch[file-checksums] = "${@bb.fetch.get_checksum_file_list(d)}"