Further investigation made by the security team has identified that focal and lower are affected because glibc in these versions does not include the following commit:
https://sourceware.org/git/?p=glibc.git;a=commit;h=752dd17443e55a4535cb9e6baa4e550ede383540.
Therefore, jammy and kinetic, which have also been updated, do not have this problem.
Focal, bionic, xenial and trusty, however, do, and therefore, the updates will be reverted in order to remove the regression.
Further investigation made by the security team has identified that focal and lower are affected because glibc in these versions does not include the following commit:
https:/ /sourceware. org/git/ ?p=glibc. git;a=commit; h=752dd17443e55 a4535cb9e6baa4e 550ede383540.
Therefore, jammy and kinetic, which have also been updated, do not have this problem.
Focal, bionic, xenial and trusty, however, do, and therefore, the updates will be reverted in order to remove the regression.