[RHSA-2022:0825] kernel security, bug fix, and enhancement update

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

The following packages have been upgraded to a later upstream version: kernel (4.18.0). (BZ#2036888)

Security Fix(es):

• kernel: improper initialization of the "flags" member of the new pipe_buffer (CVE-2022-0847)

• kernel: Use After Free in unix_gc() which could result in a local privilege escalation (CVE-2021-0920)

• kernel: local privilege escalation by exploiting the fsconfig syscall parameter leads to container breakout (CVE-2021-4154)

• kernel: possible privileges escalation due to missing TLB flush (CVE-2022-0330)

• kernel: remote stack overflow via kernel panic on systems using TIPC may lead to DoS (CVE-2022-0435)

• kernel: cgroups v1 release_agent feature may allow privilege escalation (CVE-2022-0492)

• kernel: missing check in ioctl allows kernel memory read/write (CVE-2022-0516)

• kernel: failing usercopy allows for use-after-free exploitation (CVE-2022-22942)

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):

• Intel QAT Kernel power up fix (BZ#2016437)

• RHEL8.4 seeing scsi_dma_map failed with mpt3sas driver and affecting performance (BZ#2018928)

• [Lenovo 8.4 bug] audio_HDMI certification failed on RHEL 8.4GA (No hdmi out) (BZ#2027335)

• [RHEL-8.5][4.18.0-323.el8.ppc64le][POWER8/9/10] security_flavor mode is not set back to zero post online migration (BZ#2027448)

• iommu/amd: Fix unable to handle page fault due to AVIC (BZ#2030854)

• [Lenovo 8.4 bug]The VGA display shows no signal (black screen) when install RHEL8.4(beta or rc1) in the legacy BIOS mode. (BZ#2034949)

• Double free of kmalloc-64 cache struct ib_port->pkey_group from module ib_core . (BZ#2038724)

• Bus error with huge pages enabled (BZ#2039015)

• RHEL8 - kvm: floating interrupts may get stuck (BZ#2040769)

• Data corruption on small files served by httpd, which is backed by cifs-mount (BZ#2041529)

• Add a net/mlx5 patch for Hardware Offload Fix (BZ#2042663)

• Windows guest random Bsod when 'hv-tlbflush' enlightenment is enabled (BZ#2043237)

• DNS lookup failures when run two times in a row (BZ#2043548)

• net/sched: Fix ct zone matching for invalid conntrack state (BZ#2043550)

• Kernel 4.18.0-348.2.1 secpath_cache memory leak involving strongswan tunnel (BZ#2047427)

• OCP node XFS metadata corruption after numerous reboots (BZ#2049292)

• Broadcom bnxt_re: RDMA stats are not incrementing (BZ#2049684)

• ice: bug fix series for 8.6 (BZ#2051951)

• panic while looking up a symlink due to NULL i_op->get_link (BZ#2052558)

• ceph omnibus backport for RHEL-8.6.0 (BZ#2053725)

• SCTP peel-off with SELinux and containers in OCP (BZ#2054112)

• Selinux is not allowing SCTP connection setup between inter pod communication in enforcing mode (BZ#2054117)

• dnf fails with fsync() over local repository present on CIFS mount point (BZ#2055824)