{"id":"RLSA-2022:1975","summary":"Important: kernel-rt security and bug fix update","details":"The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.\n\nSecurity Fix(es):\n\n* kernel: fget: check that the fd still exists after getting a ref to it (CVE-2021-4083)\n\n* kernel: avoid cyclic entity chains due to malformed USB descriptors (CVE-2020-0404)\n\n* kernel: integer overflow in k_ascii() in drivers/tty/vt/keyboard.c (CVE-2020-13974)\n\n* kernel: out-of-bounds read in bpf_skb_change_head() of filter.c due to a use-after-free (CVE-2021-0941)\n\n* kernel: joydev: zero size passed to joydev_handle_JSIOCSBTNMAP() (CVE-2021-3612)\n\n* kernel: reading /proc/sysvipc/shm does not scale with large shared memory segment counts (CVE-2021-3669)\n\n* kernel: out-of-bound Read in qrtr_endpoint_post in net/qrtr/qrtr.c (CVE-2021-3743)\n\n* kernel: crypto: ccp - fix resource leaks in ccp_run_aes_gcm_cmd() (CVE-2021-3744)\n\n* kernel: possible use-after-free in bluetooth module (CVE-2021-3752)\n\n* kernel: unaccounted ipc objects in Linux kernel lead to breaking memcg limits and DoS attacks (CVE-2021-3759)\n\n* kernel: DoS in ccp_run_aes_gcm_cmd() function (CVE-2021-3764)\n\n* kernel: sctp: Invalid chunks may be used to remotely remove existing associations (CVE-2021-3772)\n\n* kernel: lack of port sanity checking in natd and netfilter leads to exploit of OpenVPN clients (CVE-2021-3773)\n\n* kernel: possible leak or coruption of data residing on hugetlbfs (CVE-2021-4002)\n\n* kernel: security regression for CVE-2018-13405 (CVE-2021-4037)\n\n* kernel: Buffer overwrite in decode_nfs_fh function (CVE-2021-4157)\n\n* kernel: cgroup: Use open-time creds and namespace for migration perm checks (CVE-2021-4197)\n\n* kernel: Race condition in races in sk_peer_pid and sk_peer_cred accesses (CVE-2021-4203)\n\n* kernel: new DNS Cache Poisoning Attack based on ICMP fragment needed packets replies (CVE-2021-20322)\n\n* hw: cpu: LFENCE/JMP Mitigation Update for CVE-2017-5715 (CVE-2021-26401)\n\n* kernel: Local privilege escalation due to incorrect BPF JIT branch displacement computation (CVE-2021-29154)\n\n* kernel: use-after-free in hso_free_net_device() in drivers/net/usb/hso.c (CVE-2021-37159)\n\n* kernel: eBPF multiplication integer overflow in prealloc_elems_and_freelist() in kernel/bpf/stackmap.c leads to out-of-bounds write (CVE-2021-41864)\n\n* kernel: Heap buffer overflow in firedtv driver (CVE-2021-42739)\n\n* kernel: an array-index-out-bounds in detach_capi_ctr in drivers/isdn/capi/kcapi.c (CVE-2021-43389)\n\n* 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)\n\n* kernel: use-after-free in the TEE subsystem (CVE-2021-44733)\n\n* kernel: information leak in the IPv6 implementation (CVE-2021-45485)\n\n* kernel: information leak in the IPv4 implementation (CVE-2021-45486)\n\n* hw: cpu: intel: Branch History Injection (BHI) (CVE-2022-0001)\n\n* hw: cpu: intel: Intra-Mode BTI (CVE-2022-0002)\n\n* kernel: Local denial of service in bond_ipsec_add_sa (CVE-2022-0286)\n\n* kernel: DoS in sctp_addto_chunk in net/sctp/sm_make_chunk.c (CVE-2022-0322)\n\n* kernel: FUSE allows UAF reads of write() buffers, allowing theft of (partial) /etc/shadow hashes (CVE-2022-1011)\n\n* kernel: use-after-free in nouveau kernel module (CVE-2020-27820)\n\nFor 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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the Rocky Linux 8.6 Release Notes linked from the References section.","modified":"2026-02-04T19:30:16.698409Z","published":"2022-05-10T06:42:36Z","upstream":["CVE-2020-0404","CVE-2020-13974","CVE-2020-27820","CVE-2021-0941","CVE-2021-20322","CVE-2021-26401","CVE-2021-29154","CVE-2021-3612","CVE-2021-3669","CVE-2021-37159","CVE-2021-3743","CVE-2021-3744","CVE-2021-3752","CVE-2021-3759","CVE-2021-3764","CVE-2021-3772","CVE-2021-3773","CVE-2021-4002","CVE-2021-4037","CVE-2021-4083","CVE-2021-4157","CVE-2021-41864","CVE-2021-4197","CVE-2021-4203","CVE-2021-42739","CVE-2021-43389","CVE-2021-43976","CVE-2021-44733","CVE-2021-45485","CVE-2021-45486","CVE-2022-0001","CVE-2022-0002","CVE-2022-0286","CVE-2022-0322","CVE-2022-1011"],"references":[{"type":"ADVISORY","url":"https://errata.rockylinux.org/RLSA-2022:1975"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1901726"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1903578"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1905749"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1919791"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1946684"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1951739"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1974079"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1985353"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1986473"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1997467"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1997961"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1999544"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=1999675"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2000627"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2000694"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2004949"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2010463"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2013180"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2014230"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2016169"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2018205"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2025003"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2025726"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2027239"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2029923"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2030747"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2034342"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2035652"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2036934"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2037019"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2039911"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2039914"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2042822"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2061700"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2061712"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2061721"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2064855"}],"affected":[{"package":{"name":"kernel-rt","ecosystem":"Rocky Linux:8","purl":"pkg:rpm/rocky-linux/kernel-rt?distro=rocky-linux-8-6-legacy&epoch=0"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0:4.18.0-372.9.1.rt7.166.el8"}],"database_specific":{"yum_repository":"NFV"}}],"database_specific":{"source":"https://storage.googleapis.com/resf-osv-data/RLSA-2022:1975.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"}],"credits":[{"name":"Rocky Enterprise Software Foundation"},{"name":"Red Hat"}]}