I've looked at this issue in some detail now. The initial memory leak was introduced in linux kernel version v6.0, and the fix was introduced in the v6.9 kernel version. This means that the 6.5, and 6.8 based ubuntu kernels will contain this memory leak.
I will submit a fix for the generic 6.8, and generic 6.5 kernels so all ubuntu kernels will receive the fix. For reference: The commit that introduces this issue is 3cd3399dd7a84ada85cb839989cdf7310e302c7d https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=3cd3399dd7a84ada85cb839989cdf7310e302c7d And the commit I will be working with to provide the fix is the stable backport to the 6.8.y stable kernel which is: d2fa3493811ecd49f1581940111ccf475fa5cd38 https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d2fa3493811ecd49f1581940111ccf475fa5cd38 ** Package changed: linux-signed-aws-6.2 (Ubuntu) => linux (Ubuntu) ** Also affects: linux (Ubuntu Noble) Importance: Undecided Status: New ** Also affects: linux (Ubuntu Mantic) Importance: Undecided Status: New ** Changed in: linux (Ubuntu Mantic) Status: New => Confirmed ** Changed in: linux (Ubuntu Mantic) Assignee: (unassigned) => Philip Cox (philcox) ** Changed in: linux (Ubuntu Noble) Assignee: (unassigned) => Philip Cox (philcox) ** Changed in: linux (Ubuntu Noble) Status: New => Confirmed ** Changed in: linux (Ubuntu) Status: Confirmed => Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2045560 Title: TCP memory leak, slow network (arm64) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2045560/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
