RHSA-2024:1269 — Security Advisory

An update for kernel-rt is now available for Red Hat Enterprise Linux 8.2 Telecommunications Update Service.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• UAF in nftables when nft_set_lookup_global triggered after handling named and anonymous sets in batch requests (CVE-2023-3390)

• net/sched: sch_qfq component can be exploited if in qfq_change_agg function happens qfq_enqueue overhead (CVE-2023-3611)

• net/sched: sch_hfsc UAF (CVE-2023-4623)

• use-after-free in sch_qfq network scheduler (CVE-2023-4921)

• use after free in nvmet_tcp_free_crypto in NVMe (CVE-2023-5178)

• inactive elements in nft_pipapo_walk (CVE-2023-6817)

• out-of-bounds write in qfq_change_class function (CVE-2023-31436)

• nf_tables: stack-out-of-bounds-read in nft_byteorder_eval() (CVE-2023-35001)

• IGB driver inadequate buffer size for frames larger than MTU (CVE-2023-45871)

• ktls overwrites readonly memory pages when using function splice with a ktls socket as destination (CVE-2024-0646)

• nfp: use-after-free in area_cache_get() (CVE-2022-3545)

• vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query (CVE-2022-38096)

• Gather Data Sampling (GDS) side channel vulnerability (CVE-2022-40982)

• null-ptr-deref vulnerabilities in sl_tx_timeout in drivers/net/slip (CVE-2022-41858)

• fbcon: out-of-sync arrays in fbcon_mode_deleted due to wrong con2fb_map assignment (CVE-2023-38409)

• use-after-free in l2cap_sock_release in net/bluetooth/l2cap_sock.c (CVE-2023-40283)

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.