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ALSA-2022:1988 Not scored

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: 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: speculation on incompletely validated data on IBM Power9 (CVE-2020-4788) * kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c (CVE-2020-13974) * kernel: out-of-bounds read in bpf_skb_change_head() of filter.c due to a use-after-free (CVE-2021-0941) * kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP() (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 qrtr_endpoint_post in net/qrtr/qrtr.c (CVE-2021-3743) * kernel: crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() (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 ccp_run_aes_gcm_cmd() 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 decode_nfs_fh 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 sk_peer_pid and sk_peer_cred accesses (CVE-2021-4203) * kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies (CVE-2021-20322) * kernel: arm: SIGPAGE information disclosure vulnerability (CVE-2021-21781) * 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 hso_free_net_device() in drivers/net/usb/hso.c (CVE-2021-37159) * kernel: eBPF multiplication integer overflow in prealloc_elems_and_freelist() 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: ppc: kvm: allows a malicious KVM guest to crash the host (CVE-2021-43056) * kernel: an array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (CVE-2021-43389) * kernel: mwifiex_usb_recv() 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 bond_ipsec_add_sa (CVE-2022-0286) * kernel: DoS in sctp_addto_chunk in net/sctp/sm_make_chunk.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 AlmaLinux Release Notes linked from the References section.

Exploit probability Not scored
Published May 10, 2022
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

AlmaLinux:8 kernel-debug-core
AlmaLinux:8 bpftool
AlmaLinux:8 kernel
AlmaLinux:8 kernel-abi-stablelists
AlmaLinux:8 kernel-core
AlmaLinux:8 kernel-cross-headers
AlmaLinux:8 kernel-debug
AlmaLinux:8 kernel-debug-devel
AlmaLinux:8 kernel-debug-modules
AlmaLinux:8 kernel-debug-modules-extra
AlmaLinux:8 kernel-devel
AlmaLinux:8 kernel-doc
AlmaLinux:8 kernel-headers
AlmaLinux:8 kernel-modules
AlmaLinux:8 kernel-modules-extra
AlmaLinux:8 kernel-tools
AlmaLinux:8 kernel-tools-libs
AlmaLinux:8 kernel-tools-libs-devel
AlmaLinux:8 perf
AlmaLinux:8 python3-perf

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities ALSA-2022:1988

The kernel packages contain the Linux kernel, the core of any Linux operating system. 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: speculation on incompletely validated data on IBM Power9 (CVE-2020-4788) * kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c (CVE-2020-13974) * kernel: out-of-bounds read in bpf_skb_change_head() of filter.c due to a use-after-free (CVE-2021-0941) * kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP() (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 qrtr_endpoint_post in net/qrtr/qrtr.c (CVE-2021-3743) * kernel: crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() (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 ccp_run_aes_gcm_cmd() 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 decode_nfs_fh 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 sk_peer_pid and sk_peer_cred accesses (CVE-2021-4203) * kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies (CVE-2021-20322) * kernel: arm: SIGPAGE information disclosure vulnerability (CVE-2021-21781) * 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 hso_free_net_device() in drivers/net/usb/hso.c (CVE-2021-37159) * kernel: eBPF multiplication integer overflow in prealloc_elems_and_freelist() 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: ppc: kvm: allows a malicious KVM guest to crash the host (CVE-2021-43056) * kernel: an array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (CVE-2021-43389) * kernel: mwifiex_usb_recv() 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 bond_ipsec_add_sa (CVE-2022-0286) * kernel: DoS in sctp_addto_chunk in net/sctp/sm_make_chunk.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 AlmaLinux Release Notes linked from the References section.

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05 / REFERENCES

Further evidence