RHSA-2019:4058: Important: kernel security and bug fix update

First published: Tue Dec 03 2019(Updated: )

The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> Kernel: vhost_net: infinite loop while receiving packets leads to DoS (CVE-2019-3900)</li> <li> Kernel: page cache side channel attacks (CVE-2019-5489)</li> <li> Kernel: KVM: nVMX: use-after-free of the hrtimer for emulation of the preemption timer (CVE-2019-7221)</li> <li> kernel: Handling of might_cancel queueing is not properly pretected against race (CVE-2017-10661)</li> <li> kernel: Inifinite loop vulnerability in mm/madvise.c:madvise_willneed() function allows local denial of service (CVE-2017-18208)</li> <li> kernel: use-after-free in drivers/char/ipmi/ipmi_si_intf.c, ipmi_si_mem_io.c, ipmi_si_port_io.c (CVE-2019-11811)</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> [LLNL 7.5 Bug] slab leak causing a crash when using kmem control group (BZ#1748234)</li> <li> kmem, memcg: system crash due to cache destruction race (BZ#1754829)</li> <li> kernel build: parallelize redhat/mod-sign.sh (BZ#1755327)</li> <li> kernel build: speed up module compression step (BZ#1755336)</li>

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