-- Bionic verification -- ubuntu@starbuck:~$ uname -a Linux starbuck 4.15.0-23-generic #25-Ubuntu SMP Wed May 23 17:59:52 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux ubuntu@starbuck:~$ dmesg | grep -i "W+X" [ 34.983869] Checked W+X mappings: passed, no W+X pages found ubuntu@starbuck:~$
-- Artful verification -- ubuntu@starbuck:~$ uname -a Linux starbuck 4.13.0-45-generic #50-Ubuntu SMP Wed May 30 08:23:03 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux ubuntu@starbuck:~$dmesg | grep -i "W+X" [ 35.566350] Checked W+X mappings: passed, no W+X pages found ubuntu@starbuck:~$ -- Xenial Verification -- ubuntu@seuss:~$ uname -a Linux seuss 4.4.0-128-generic #154-Ubuntu SMP Fri May 25 14:17:06 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux ubuntu@seuss:~$ dmesg | grep -i "W+X" ubuntu@seuss:~$ ** Tags removed: verification-needed-artful verification-needed-bionic verification-needed-xenial ** Tags added: verification-done-artful verification-done-bionic verification-done-xenial -- 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/1769696 Title: [SRU][Bionic/Artful] fix false positives in W+X checking Status in linux package in Ubuntu: Confirmed Status in linux source package in Xenial: Fix Committed Status in linux source package in Artful: Fix Committed Status in linux source package in Bionic: Fix Committed Bug description: [Impact] on ARM64 servers we observe call trace "arm64/mm: Found insecure W+X mapping at address 0000000000a99000/0xa99000" while booting. These messages are a false positive and triggered at random. [Test] There is no reliable way to reproduce these warnings, they are triggered at random. But these messages can appear on any ARM64 server Cavium, Qualcomm etc. A test kernel is available in ppa:manjo/lp1769696 and the kernel was boot tested on a QDF2400 system and Cavium Thunderx. ubuntu@awrep2:~$ uname -a Linux awrep2 4.15.0-21-generic #22~lp1769696+build.1-Ubuntu SMP Mon May 7 16:04:39 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux ubuntu@boomer:~$ uname -a Linux boomer 4.15.0-21-generic #22~lp1769696+build.1-Ubuntu SMP Mon May 7 16:04:39 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux ubuntu@boomer:~$ [Fix] Upstream fix is available in linux-next 65d313ee1a7d init: fix false positives in W+X checking [Regression Potential] potential for any regression is low. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1769696/+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
