Red Hat alert RHSA-2025:19103-01 (kernel-rt)

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

Red Hat Product Security has rated this update as having a security impact of
Moderate. 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):

* kernel: Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp
(CVE-2023-53297)

* kernel: efivarfs: Fix slab-out-of-bounds in efivarfs_d_compare
(CVE-2025-39817)

* kernel: Bluetooth: Fix potential use-after-free when clear keys
(CVE-2023-53386)

* kernel: Bluetooth: L2CAP: Fix user-after-free (CVE-2022-50386)

* kernel: wifi: cfg80211: sme: cap SSID length in __cfg80211_connect_result()
(CVE-2025-39849)

* kernel: scsi: lpfc: Fix buffer free/clear order in deferred receive path
(CVE-2025-39841)

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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Original: https://access.redhat.com/security/data/csaf/v2/advisories/2025/rhsa-2025_19103.json