** Changed in: linux (Ubuntu Artful)
Status: New => In Progress
** Changed in: linux (Ubuntu Bionic)
Status: New => In Progress
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
** Changed in: linux (Ubuntu Artful)
Status: In Progress => Fix Committed
** Changed in: linux (Ubuntu Bionic)
Status: In Progress => Fix Committed
--
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:
New
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 : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
