RHSA-2022:1975: Important: kernel-rt security and bug fix update

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.Security Fix(es): kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083) kernel: avoid cyclic entity chains due to malformed USB descriptors (CVE-2020-0404) kernel: integer overflow in kascii() in drivers/tty/vt/keyboard.c (CVE-2020-13974) kernel: out-of-bounds read in bpfskbchangehead() of filter.c due to a use-after-free (CVE-2021-0941) kernel: joydev: zero size passed to joydevhandleJSIOCSBTNMAP() (CVE-2021-3612) kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts (CVE-2021-3669) kernel: out-of-bound Read in qrtrendpointpost in net/qrtr/qrtr.c (CVE-2021-3743) kernel: crypto: ccp - fix resource leaks in ccprunaesgcmcmd() (CVE-2021-3744) kernel: possible use-after-free in bluetooth module (CVE-2021-3752) kernel: unaccounted ipc objects in Linux kernel lead to breaking memcg limits and DoS attacks (CVE-2021-3759) kernel: DoS in ccprunaesgcmcmd() function (CVE-2021-3764) kernel: sctp: Invalid chunks may be used to remotely remove existing associations (CVE-2021-3772) kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients (CVE-2021-3773) kernel: possible leak or coruption of data residing on hugetlbfs (CVE-2021-4002) kernel: security regression for CVE-2018-13405 (CVE-2021-4037) kernel: Buffer overwrite in decodenfsfh function (CVE-2021-4157) kernel: cgroup: Use open-time creds and namespace for migration perm checks (CVE-2021-4197) kernel: Race condition in races in skpeerpid and skpeercred accesses (CVE-2021-4203) kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies (CVE-2021-20322) hw: cpu: LFENCE/JMP Mitigation Update for CVE-2017-5715 (CVE-2021-26401) kernel: Local privilege escalation due to incorrect BPF JIT branch displacement computation (CVE-2021-29154) kernel: use-after-free in hsofreenetdevice() in drivers/net/usb/hso.c (CVE-2021-37159) kernel: eBPF multiplication integer overflow in preallocelemsandfreelist() in kernel/bpf/stackmap.c leads to out-of-bounds write (CVE-2021-41864) kernel: Heap buffer overflow in firedtv driver (CVE-2021-42739) kernel: an array-index-out-bounds in detachcapictr in drivers/isdn/capi/kcapi.c (CVE-2021-43389) kernel: mwifiexusbrecv() in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker to cause DoS via crafted USB device (CVE-2021-43976) kernel: use-after-free in the TEE subsystem (CVE-2021-44733) kernel: information leak in the IPv6 implementation (CVE-2021-45485) kernel: information leak in the IPv4 implementation (CVE-2021-45486) hw: cpu: intel: Branch History Injection (BHI) (CVE-2022-0001) hw: cpu: intel: Intra-Mode BTI (CVE-2022-0002) kernel: Local denial of service in bondipsecaddsa (CVE-2022-0286) kernel: DoS in sctpaddtochunk in net/sctp/smmakechunk.c (CVE-2022-0322) kernel: FUSE allows UAF reads of write() buffers, allowing theft of (partial) /etc/shadow hashes (CVE-2022-1011) kernel: use-after-free in nouveau kernel module (CVE-2020-27820) 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.Additional Changes:For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.6 Release Notes linked from the References section.