RHSA-2020:3019: Important: kernel security, bug fix, and enhancement update

First published: Tue Jul 21 2020(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> Kernel: vfio: access to disabled MMIO space of some devices may lead to DoS scenario (CVE-2020-12888)</li> <li> kernel: denial of service in arch/powerpc/kernel/signal_32.c and arch/powerpc/kernel/signal_64.c via sigreturn() system call (CVE-2019-13648)</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> kernel: hw: provide reporting and microcode mitigation toggle for CVE-2020-0543 / Special Register Buffer Data Sampling (SRBDS) (BZ#1840678)</li> <li> Deadlock condition grabbing ssb_state lock (BZ#1841120)</li> <li> ext4: change LRU to round-robin in extent status tree shrinker (BZ#1847342)</li> <li> Emulex lpfc seems to get hung up failing IOCB'S continuously on kernel 3.10.0-957.21.3.el7.x86_64 leading to Oracle evictions (BZ#1849650)</li> <li> After upgrade to 3.9.89 pod containers with CPU limits fail to start due to cgroup error (BZ#1850499)</li> Enhancement(s):<br><li> [Marvell 7.8 FEAT] Update bnx2fc driver to latest upstream (BZ#1834817)</li>

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