RHSA-2026:0489 — Security Advisory

An update for kernel is now available for Red Hat Enterprise Linux 9.4 Extended Update Support.

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: Linux kernel: SCTP use-after-free due to race condition in sendmsg (CVE-2025-23142)

• kernel: nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() (CVE-2025-38724)

• kernel: smb: client: fix race with concurrent opens in rename(2) (CVE-2025-39825)

• kernel: e1000e: fix heap overflow in e1000_set_eeprom (CVE-2025-39898)

• kernel: Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync (CVE-2025-39982)

• kernel: Bluetooth: ISO: Fix possible UAF on iso_conn_free (CVE-2025-40141)

• kernel: tls: wait for pending async decryptions if tls_strp_msg_hold fails (CVE-2025-40176)

• kernel: usb: dwc3: Fix race condition between concurrent dwc3_remove_requests() call paths (CVE-2025-68287)

• kernel: libceph: fix potential use-after-free in have_mon_and_osd_map() (CVE-2025-68285)

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.