** 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 Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1855334 Title: CONFIG_DEBUG_LIST should be enabled Status in linux package in Ubuntu: In Progress Bug description: 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/ To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1855334/+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
