SUSE-SU-2017:2775-1

This update for the Linux Kernel 3.12.61-52_92 fixes several issues.

The following security bugs were fixed:

• CVE-2017-15274: security/keys/keyctl.c in the Linux kernel did not consider the case of a NULL payload in conjunction with a nonzero length value, which allowed local users to cause a denial of service (NULL pointer dereference and OOPS) via a crafted add_key or keyctl system call (bsc#1045327).
• CVE-2017-1000112: Updated patch for this issue to be in sync with the other livepatches. Description of the issue: Prevent race condition in net-packet code that could have been exploited by unprivileged users to gain root access (bsc#1052368, bsc#1052311).
• CVE-2017-9242: The _ip6appenddata function in net/ipv6/ip6output.c was too late in checking whether an overwrite of an skb data structure may occur, which allowed local users to cause a denial of service (system crash) via crafted system calls (bsc#1042892).
• CVE-2017-7645: The NFSv2/NFSv3 server in the nfsd subsystem allowed remote attackers to cause a denial of service (system crash) via a long RPC reply (bsc#1046191).