(RHSA-2019:2696) Important: kernel security and bug fix update

The kernel packages contain the Linux kernel, the core of any Linux operating system.

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):

• fragmented packets timing out (BZ#1729411)

• kernel build: speed up debuginfo extraction (BZ#1731462)

• TCP packets are segmented when sent to the VM (TAP) (BZ#1732744)

• TCP packets are segmented when sent to the VLAN device when coming from VXLAN dev. (BZ#1732809)

• skb head copy occurs when sending traffic over OVS managed VXLAN tunnel (BZ#1733626)

• [mlx4] VXLAN over VLAN TCP segmentation (BZ#1734160)

• use “make -jN” for modules_install (BZ#1735081)

• shmem: consider shm_mnt as a long-term mount (BZ#1737376)

• [ESXi][RHEL7]use-after-free of scsi_cmnd on VMWare virtual guest with vmw_pvscsi and ata_piix (BZ#1737377)

• Backport TCP follow-up for small buffers (BZ#1739127)