Kernel security update: CVE-2017-7542 and other; Virtuozzo ReadyKernel patch 27.0 for Virtuozzo 7.0.5

The cumulative Virtuozzo ReadyKernel patch was updated with security and stability fixes. The patch applies to Virtuozzo kernels 3.10.0-514.26.1.vz7.33.22 (Virtuozzo 7.0.5).
Vulnerability id: CVE-2017-7542
Integer overflow vulnerability in ip6_find_1stfragopt() function was found. Local attacker that has privileges to open raw sockets can cause infinite loop inside ip6_find_1stfragopt() function.

Vulnerability id: CVE-2017-7541
Kernel memory corruption due to a buffer overflow was found in brcmf_cfg80211_mgmt_tx() function in Linux kernels from v3.9-rc1 to v4.13-rc1. The vulnerability can be triggered by sending a crafted NL80211_CMD_FRAME packet via netlink. An unprivileged local user could use this flaw to induce kernel memory corruption on the system, leading to a crash.