An update for kernel is now available for Red Hat Enterprise Linux 8.

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

Security Fix(es):

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

* kernel: use-after-free in sch_qfq network scheduler (CVE-2023-4921)

* kernel: inactive elements in nft_pipapo_walk (CVE-2023-6817)

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

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

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

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

* kernel: HID: check empty report_list in hid_validate_values() (CVE-2023-1073)

* kernel: Possible use-after-free since the two fdget() during
 vhost_net_set_backend() (CVE-2023-1838)

* kernel: NULL pointer dereference in can_rcv_filter (CVE-2023-2166)

* kernel: Slab-out-of-bound read in compare_netdev_and_ip (CVE-2023-2176)

* kernel: A heap out-of-bounds write when function perf_read_group is called
 and sibling_list is smaller than its child's sibling_list (CVE-2023-5717)

* kernel: NULL pointer dereference in nvmet_tcp_build_iovec (CVE-2023-6356)

* kernel: NULL pointer dereference in nvmet_tcp_execute_request (CVE-2023-6535)

* kernel: NULL pointer dereference in __nvmet_req_complete (CVE-2023-6536)

* kernel: Out-Of-Bounds Read vulnerability in smbCalcSize (CVE-2023-6606)

* kernel: OOB Access in smb2_dump_detail (CVE-2023-6610)

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

* kernel: SEV-ES local priv escalation (CVE-2023-46813)

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.

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CVE-2022-3545: Use After Free (CWE-416)
CVE-2022-41858: Use After Free (CWE-416)
CVE-2023-1073: Out-of-bounds Write (CWE-787)
CVE-2023-1838: Use After Free (CWE-416)
CVE-2023-2166: NULL Pointer Dereference (CWE-476)
CVE-2023-2176: Out-of-bounds Read (CWE-125)
CVE-2023-4623: Use After Free (CWE-416)
CVE-2023-4921: Use After Free (CWE-416)
CVE-2023-5717: Out-of-bounds Write (CWE-787)
CVE-2023-6356: NULL Pointer Dereference (CWE-476)
CVE-2023-6535: NULL Pointer Dereference (CWE-476)
CVE-2023-6536: NULL Pointer Dereference (CWE-476)
CVE-2023-6606: Out-of-bounds Read (CWE-125)
CVE-2023-6610: Out-of-bounds Read (CWE-125)
CVE-2023-6817: Use After Free (CWE-416)
CVE-2023-40283: Use After Free (CWE-416)
CVE-2023-45871: Buffer Copy without Checking Size of Input ('Classic Buffer
 Overflow') (CWE-120)
CVE-2023-46813: Improper Privilege Management (CWE-269)
CVE-2024-0646