avoid infinite loop when exploit failed

Author: r33s3n6

pocs/linux/kernelctf/CVE-2026-43074_lts/exploit/lts-6.12.82/exploit

@@ -174,6 +174,15 @@ std::optional<KernelRegisterSnapshot> KernelLogReader::read_oops_registers(
     fprintf(stderr, "[kernel log reader] delta buffer:\n%.*s\n", static_cast<int>(delta_log.size()),
             delta_log.data());
 
+    // if "list_add corruption" in the delta log, we fail, exit directly
+    if (delta_log.find("list_add corruption") != std::string_view::npos) {
+        fprintf(stderr,
+                "[kernel log reader] detected 'list_add corruption' in kernel log, which "
+                "indicates the exploit is likely in a bad state,"
+                "exiting to avoid infinite loop\n");
+        exit(1);
+    }
+
     std::optional<KernelRegisterSnapshot> snapshot;
     if (!delta_log.empty()) {
         OopsLogParser parser(required);