Back then, it was known that the KRACK attack Android fix would be coming in a few weeks. The details about the WiFi bug have been shared in the November Security Bulletin. Owners of supported Google Pixel and Nexus devices can find the Android patch in the November Update.
Affected users can download the security patch through OTA update by visiting Settings > System > System update. Alternatively, they can manually flash system images for their devices. System image for Google Pixel 2 XL is currently not available.
Google has you covered for their range of devices. But the question about the security patch for the rest of Android population is still a big concern. It worsens when different manufacturers don’t push security update for months, leaving the devices vulnerable to attacks.
Apple and Microsoft have already released the fix for KRACK attack. Also, various affected Linux distros were also covered in a security patch released earlier.