(RHSA-2022:0777) Important: kernel security, bug fix, and enhancement update

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

Security Fix(es):

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

• kernel: use-after-free in RDMA listen() (CVE-2021-4028)

• 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: 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#2016436)

• RHEL8: DFS provided SMB shares are not accessible following unprivileged access (BZ#2017176)

• xfs: I_DONTCACHE flag is ignored [xfstests: xfs/177] (BZ#2028533)

• spec: Support separate tools build (BZ#2031052)

• block: update to upstream v5.14 (BZ#2034395)

• Double free of kmalloc-64 cache struct ib_port->pkey_group from module ib_core . (BZ#2038723)

• RHEL8 - kvm: floating interrupts may get stuck (BZ#2040768)

• Data corruption on small files served by httpd, which is backed by cifs-mount (BZ#2041528)

• Add a net/mlx5 patch for Hardware Offload Fix (BZ#2042662)

• DNS lookup failures when run two times in a row (BZ#2043547)

• net/sched: Fix ct zone matching for invalid conntrack state (BZ#2043549)

• Windows guest random Bsod when ‘hv-tlbflush’ enlightenment is enabled (BZ#2048342)

• OCP node XFS metadata corruption after numerous reboots (BZ#2049291)

• ice: bug fix series for 8.6 (BZ#2051950)

• SNO 4.9: NO-CARRIER on pod interface using VF on intel E810-C NIC; IAVF_ERR_ADMIN_QUEUE_ERROR (BZ#2052984)

• ceph omnibus backport for RHEL-8.6.0 (BZ#2053724)

• SCTP peel-off with SELinux and containers in OCP (BZ#2054111)

• Selinux is not allowing SCTP connection setup between inter pod communication in enforcing mode (BZ#2054116)

Enhancement(s):

• [Mellanox 8.5 FEAT] mlx5: drivers update upto Linux v5.12 [8.4.0.z] (BZ#2037730)

• [MCHP 8.5 FEAT] Update smartpqi driver to latest upstream [None8.4.0.z] (BZ#2042498)