(RHSA-2019:2730) Important: kernel-rt security and bug fix update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: Memory corruption due to incorrect socket cloning (CVE-2018-9568)

• kernel: Missing check in fs/inode.c:inode_init_owner() does not clear SGID bit on non-directories for non-members (CVE-2018-13405)

• kernel: nfs: use-after-free in svc_process_common() (CVE-2018-16884)

• kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)

• kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• Backport TCP follow-up for small buffers [mrg-r] (BZ#1732110)

• update the MRG 2.5.z 3.10 realtime-kernel sources (BZ#1734469)