CVE ID:	CVE-2016-4557
Description:	The replace_map_fd_with_map_ptr function in kernel/bpf/verifier.c in the Linux kernel before 4.5.5 does not properly maintain an fd data structure, which allows local users to gain privileges or cause a denial of service (use-after-free) via crafted BPF instructions that reference an incorrect file descriptor.
Test IDs:	None available
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2016-4557 https://www.exploit-db.com/exploits/40759/ https://bugs.chromium.org/p/project-zero/issues/detail?id=808 http://www.openwall.com/lists/oss-security/2016/05/06/4 SuSE Security Announcement: openSUSE-SU-2016:1641 (Google Search) http://lists.opensuse.org/opensuse-security-announce/2016-06/msg00044.html