Description of the problem:
The uname() syscall since 3.0 with the UNAME26 personality leaks kernel
stack memory contents.
Acknowledgements:
Red Hat would like to thank Kees Cook for reporting this issue.
Statement:
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 5.
This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 6.
This issue did affect the version of Linux kernel as shipped with Red Hat Enterprise MRG 2.