(RHSA-2020:0374) 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: heap overflow in mwifiex_update_vs_ie() function of Marvell WiFi driver (CVE-2019-14816)

• kernel: heap-based buffer overflow in mwifiex_process_country_ie() function in drivers/net/wireless/marvell/mwifiex/sta_ioctl.c (CVE-2019-14895)

• kernel: heap overflow in marvell/mwifiex/tdls.c (CVE-2019-14901)

• kernel: buffer overflow in cfg80211_mgd_wext_giwessid in net/wireless/wext-sme.c (CVE-2019-17133)

• kernel: incomplete fix for race condition between mmget_not_zero()/get_task_mm() and core dumping in CVE-2019-11599 (CVE-2019-14898)

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):

• [Azure][7.8] Include patch “PCI: hv: Avoid use of hv_pci_dev->pci_slot after freeing it” (BZ#1766089)

• [Hyper-V][RHEL7.8] When accelerated networking is enabled on RedHat, network interface(eth0) moved to new network namespace does not obtain IP address. (BZ#1766093)

• [Azure][RHEL 7.6] hv_vmbus probe pass-through GPU card failed (BZ#1766097)

• SMB3: Do not error out on large file transfers if server responds with STATUS_INSUFFICIENT_RESOURCES (BZ#1767621)

• Since RHEL commit 5330f5d09820 high load can cause dm-multipath path failures (BZ#1770113)

• Hard lockup in free_one_page()->_raw_spin_lock() because sosreport command is reading from /proc/pagetypeinfo (BZ#1770732)

• patchset for x86/atomic: Fix smp_mb__{before,after}_atomic() (BZ#1772812)

• fix compat statfs64() returning EOVERFLOW for when _FILE_OFFSET_BITS=64 (BZ#1775678)

• Guest crash after load cpuidle-haltpoll driver (BZ#1776289)

• RHEL 7.7 long I/O stalls with bnx2fc from not masking off scope bits of retry delay value (BZ#1776290)

• Multiple “mv” processes hung on a gfs2 filesystem (BZ#1777297)

• Moving Egress IP will result in conntrack sessions being DESTROYED (BZ#1779564)

• core: backports from upstream (BZ#1780033)

• kernel BUG at arch/powerpc/platforms/pseries/lpar.c:482! (BZ#1780148)

• Race between tty_open() and flush_to_ldisc() using the tty_struct->driver_data field. (BZ#1780163)