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HistoryNov 26, 2019 - 10:38 a.m.

(RHSA-2019:3979) Important: kernel security and bug fix update


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

Security Fix(es):

  • Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

  • kernel: local attacker can trigger multiple use-after-free conditions results in privilege escalation (CVE-2019-15239)

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):

  • On RHEL 7.7 kernel SCSI VPD information for NVMe drives is missing (breaks InfoScale) (BZ#1752423)

  • RHEL7 fnic spamming logs: Current vnic speed set to : 40000 (BZ#1754836)

  • kernel build: parallelize redhat/ (BZ#1755330)

  • kernel build: speed up module compression step (BZ#1755339)

  • Nested VirtualBox VMs on Windows guest has the potential of impacting memory region allocated to other KVM guests (BZ#1755781)

  • NULL pointer dereference at check_preempt_wakeup+0x109 (BZ#1756265)

  • Regression: panic in pick_next_task_rt (BZ#1756267)

  • ixgbe reports “Detected Tx Unit Hang” with adapter reset on RHEL 7 (BZ#1757350)

  • [Intel 7.8 Bug] [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not enabled in VM. (BZ#1757757)

  • nvme: dead loop in blk_mq_tagset_wait_completed_request() when it is called from timeout handler (BZ#1758051)

  • [mlx5] VF Representer naming is not consistent/persistent through reboots with OSPD deployment (BZ#1759003)

  • OS getting restarted because of driver issue with QLogic Corp. ISP2532-based 8Gb Fibre Channel to PCI Express HBA [1077:2532] (rev 02). (BZ#1759447)

  • mlx5: Load balancing not working over VF LAG configuration (BZ#1759449)

  • RHEL7.8 - ISST-LTE: vimlp1: Running LTP af_alg04.c (crypto) crash the LPAR (BZ#1763620)

  • RHEL7.5 - Fix security issues on crypto vmx (BZ#1763621)

  • RHEL 7.7 RC1 - Host crashes about 4.5 hours into switch port bounce test (BZ#1763624)

  • RHEL7.6 - cacheinfo code unsafe vs LPM (BZ#1763625)

  • xfs hangs on acquiring xfs_buf semaphore (BZ#1764245)

  • single CPU VM hangs during open_posix_testsuite (BZ#1766087)

  • rcu_sched self-detected stall on CPU while booting with nohz_full (BZ#1766098)