RHSA-2019:2837: Important: kernel security and bug fix update

First published: Fri Sep 20 2019(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> Kernel: page cache side channel attacks (CVE-2019-5489)</li> <li> kernel: a NULL pointer dereference in drivers/scsi/megaraid/megaraid_sas_base.c leading to DoS (CVE-2019-11810)</li> 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.<br>Bug Fix(es):<br><li> [RHEL7.7] Refined TSC clocksource calibration occasionally fails on some SkyLake-X servers (BZ#1719781)</li> <li> tc: incorrect flows statistic on bond device (shared block) (BZ#1719786)</li> <li> Qlogic qla2xxx driver version 10.x.x.x pins all irq requests to cpu0 and associated cores (BZ#1720956)</li> <li> libceph: handle an empty authorize reply (BZ#1722769)</li> <li> RHEL7.6 - pkey: Indicate old mkvp only if old and curr. mkvp are different (BZ#1723153)</li> <li> RHEL7.6 - qdio: clear intparm during shutdown (BZ#1723154)</li> <li> [RHEL7] Fix Spectre V1 vulnerability in vhost code (BZ#1724079)</li> <li> [Stratus] 802.3ad bond group member disabled after reboot (or I/O failure testing) (BZ#1725037)</li> <li> Accept validate negotiate if server returns NT_STATUS_NOT_SUPPORTED. (BZ#1726563)</li> <li> [Regression] RHEL7.6 - losing dirty bit during THP splitting, possible memory corruption (mm-) (BZ#1727108)</li> <li> [Intel 7.7 BUG] BUG: unable to handle kernel paging request at 000000006b4fd010 (BZ#1727110)</li> <li> KVM tracebacks causing significant latency to VM (BZ#1728174)</li> <li> NULL pointer dereference in vxlan_dellink+0xaa (BZ#1728198)</li> <li> [rhel7]NULL pointer dereference at vxlan_fill_metadata_dst (BZ#1728199)</li> <li> After update to RHEL 7.6 (3.10.0-957.1.3.el7.x86_64) from 7.4, customer has experienced multiple panics in kernel at BUG at drivers/iommu/iova.c:859! (BZ#1731300)</li> <li> kernel build: speed up debuginfo extraction (BZ#1731464)</li> <li> hpsa driver hard lockup trying to complete a no longer valid completion on the stack (BZ#1731980)</li> <li> XFS: forced shutdown in xfs_trans_cancel during create near ENOSPC (BZ#1731982)</li> <li> TCP packets are segmented when sent to the VLAN device when coming from VXLAN dev. (BZ#1732812)</li> <li> panic handing smb2_reconnect due to a use after free (BZ#1737381)</li> <li> Backport TCP follow-up for small buffers (BZ#1739129)</li>

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