CVE-2017-10661

A race condition was found in the Linux kernel before version 4.11-rc1 in 'fs/timerfd.c' file which allows a local user to cause a kernel list corruption or use-after-free via simultaneous operations with a file descriptor which leverage improper 'might_cancel' queuing. An unprivileged local user could use this flaw to cause a denial of service of the system. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is unlikely.

This issue does not affect Red Hat Enterprise Linux 5 as the code with the flaw is not present in the products listed.

This issue affects Red Hat Enterprise Linux 6 and 7. Future updates for the respective releases may address this issue.

This issue affects the Linux kernel packages as shipped with Red Hat Enterprise Linux MRG-2. This flaw is not currently planned to be addressed in future updates due to MRG-2 being an EUS release. For additional information, refer to the Extended Update Support (EUS) Guide: https://access.redhat.com/articles/rhel-eus.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.