CVE-2018-18397

The userfaultfd implementation in the Linux kernel before 4.19.7 mishandles access control for certain UFFDIO ioctl calls, as demonstrated by allowing local users to write data into holes in a tmpfs file if the user has read-only access to that file, and that file contains holes, related to...

CVE-2017-15126

A use-after-free flaw was found in fs/userfaultfd.c in the Linux kernel before 4.13.6. The issue is related to the handling of fork failure when dealing with event messages. Failure to fork correctly can lead to a situation where a fork event will be removed from an already freed list of events...

CVE-2017-15126

CVE-2017-15126 affects the Linux kernels fs/userfaultfd.c, where an improper fork handling during event processing can cause a fork event to be removed from an already freed list, i.e., a use-after-free condition. Affected are kernels before 4.13.6 (fixed in 4.13.6), with the issue having high im...