** Description changed: - <Placeholder bug for enabling CONFIG_DEBUG_LIST> + We should turn on CONFIG_DEBUG_LIST which does some sanity checking on the + surrounding linked list elements when adding or removing an element. If the sanity check fails, the list manipulation operation is not and a loud warning is printed to the logs in the form of a WARN(). + + This may prevent some exploits that involve manipulating a linked list. + + This config option is recommended by the Kernel Self Protection + Project[1] and a 2019 study performed by Capsule 8 shows that it is + enabled in some other major distro kernels[2]. + + [1] https://kernsec.org/wiki/index.php/Kernel_Self_Protection_Project/Recommended_Settings + [2] https://capsule8.com/blog/millions-of-binaries-later-a-look-into-linux-hardening-in-the-wild/
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1855334 Title: CONFIG_DEBUG_LIST should be enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1855334/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
