diff --git a/compiler/rustc_attr_parsing/src/parser.rs b/compiler/rustc_attr_parsing/src/parser.rs
index 973635f432e8..354fbab9cfcf 100644
--- a/compiler/rustc_attr_parsing/src/parser.rs
+++ b/compiler/rustc_attr_parsing/src/parser.rs
@@ -522,6 +522,13 @@ impl<'a, 'sess> MetaItemListParserContext<'a, 'sess> {
             return self.parser.dcx().create_err(err);
         }
 
+        if let ShouldEmit::ErrorsAndLints { recovery: Recovery::Forbidden } = self.should_emit {
+            // Do not attempt to suggest anything in `Recovery::Forbidden` mode.
+            // Malformed diagnostic-attr arguments that start with an `if` expression can lead to
+            // an ICE (https://github.com/rust-lang/rust/issues/152744), because callers may cancel the `InvalidMetaItem` error.
+            return self.parser.dcx().create_err(err);
+        }
+
         // Suggest quoting idents, e.g. in `#[cfg(key = value)]`. We don't use `Token::ident` and
         // don't `uninterpolate` the token to avoid suggesting anything butchered or questionable
         // when macro metavariables are involved.
diff --git a/tests/ui/diagnostic_namespace/do_not_recommend/malformed-diagnostic-attributes-if-expression.rs b/tests/ui/diagnostic_namespace/do_not_recommend/malformed-diagnostic-attributes-if-expression.rs
new file mode 100644
index 000000000000..3e00e42f9d9d
--- /dev/null
+++ b/tests/ui/diagnostic_namespace/do_not_recommend/malformed-diagnostic-attributes-if-expression.rs
@@ -0,0 +1,10 @@
+//@ check-pass
+//@ reference: attributes.diagnostic.do_not_recommend.syntax
+
+trait Foo {}
+
+#[diagnostic::do_not_recommend(if not_accepted)]
+//~^ WARNING `#[diagnostic::do_not_recommend]` does not expect any arguments
+impl Foo for () {}
+
+fn main() {}
diff --git a/tests/ui/diagnostic_namespace/do_not_recommend/malformed-diagnostic-attributes-if-expression.stderr b/tests/ui/diagnostic_namespace/do_not_recommend/malformed-diagnostic-attributes-if-expression.stderr
new file mode 100644
index 000000000000..d93a9f868a74
--- /dev/null
+++ b/tests/ui/diagnostic_namespace/do_not_recommend/malformed-diagnostic-attributes-if-expression.stderr
@@ -0,0 +1,10 @@
+warning: `#[diagnostic::do_not_recommend]` does not expect any arguments
+  --> $DIR/malformed-diagnostic-attributes-if-expression.rs:6:1
+   |
+LL | #[diagnostic::do_not_recommend(if not_accepted)]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = note: `#[warn(malformed_diagnostic_attributes)]` (part of `#[warn(unknown_or_malformed_diagnostic_attributes)]`) on by default
+
+warning: 1 warning emitted
+