CVE ID:	CVE-2017-2671
Description:	The ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.
Test IDs:	1.3.6.1.4.1.25623.1.0.890922
Cross References:	Common Vulnerability Exposure (CVE) ID: CVE-2017-2671 42135 https://www.exploit-db.com/exploits/42135/ 97407 http://www.securityfocus.com/bid/97407 RHSA-2017:1842 https://access.redhat.com/errata/RHSA-2017:1842 RHSA-2017:2077 https://access.redhat.com/errata/RHSA-2017:2077 RHSA-2017:2669 https://access.redhat.com/errata/RHSA-2017:2669 RHSA-2018:1854 https://access.redhat.com/errata/RHSA-2018:1854 USN-3754-1 https://usn.ubuntu.com/3754-1/ [oss-security] 20170404 Re: Linux kernel ping socket / AF_LLC connect() sin_family race http://openwall.com/lists/oss-security/2017/04/04/8 https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893 https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/net/ipv4/ping.c?id=43a6684519ab0a6c52024b5e25322476cabad893 https://github.com/danieljiang0415/android_kernel_crash_poc https://github.com/danieljiang0415/android_kernel_crash_poc https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893 https://github.com/torvalds/linux/commit/43a6684519ab0a6c52024b5e25322476cabad893 https://twitter.com/danieljiang0415/status/845116665184497664 https://twitter.com/danieljiang0415/status/845116665184497664