I am also affected by this. I have an Ubuntu webserver (t2.micro, 22.04.4 LTS (jammy)) that suddenly started having these show up in the kernel journalctl logs, multiple times at boot time.
Just to be sure I had the latest everything, I ran `apt update`, `apt upgrade`, and rebooted; the UBSAN error still shows up in the logs. `uname -r` says I'm running 6.5.0-1016-aws. The webserver still functions as far as I can tell, but it's definitely a regression. I created this EC2 instance with 22.04 a couple of months ago, and it suddenly started happening. -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2058480 Title: [Ubuntu 22.04.4/linux-image-6.5.0-1014-aws] Kernel outputs "UBSAN: array-index-out-of-bounds in /build/linux-aws-6.5-4tw9h1/linux- aws-6.5-6.5.0/drivers/net/xen-netfront.c:349:9 " multiple times, especially during boot Status in linux package in Ubuntu: Confirmed Bug description: A newly launched Ubuntu 22.04.4 EC2 instance outputs "UBSAN: array- index-out-of-bounds in /build/linux-aws-6.5-4tw9h1/linux- aws-6.5-6.5.0/drivers/net/xen-netfront.c:349:9" multiple times, especially during boot. Reproducing step: - Launch an Ubuntu 22.04.4 EC2 instance with the instance type t2.*. Additional Info: - Please use t2 instance to make sure to use xen-netfront as a network device. - This messages similar to https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2058477, which is related to netvsc.c To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2058480/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
