ubuntu@hotdog:~$ dmesg | grep W+X [ 35.653992] arm64/mm: Found insecure W+X mapping at address ffff000000ac9000/0xffff000000ac9000 [ 36.046414] Checked W+X mappings: FAILED, 12 W+X pages found, 0 non-UXN pages found
Yep, that's in the userspace mapping. ** Tags removed: verification-needed-artful ** Tags added: verification-done-artful -- 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/1765850 Title: arm64: fix CONFIG_DEBUG_WX address reporting Status in linux package in Ubuntu: Fix Released Status in linux source package in Artful: Fix Committed Bug description: [Impact] The warnings emitted by the kernel when CONFIG_DEBUG_WX is enabled will show an incorrect address, nullifying the value of this config option. [Test Case] Boot; if a "arm64/mm: Found insecure W+X mapping at address" message appears, confirm it's not in the userspace mapping. [Regression Risk] This is arm64-only code, so regressions would be restricted to arm64. This change is currently present in bionic without any noticed regressions. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1765850/+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
