Moderate: kernel-rt security update
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://access.redhat.com/errata/RHSA-2025:19103
- https://access.redhat.com/security/cve/CVE-2022-50386
- https://access.redhat.com/security/cve/CVE-2023-53297
- https://access.redhat.com/security/cve/CVE-2023-53386
- https://access.redhat.com/security/cve/CVE-2025-39817
- https://access.redhat.com/security/cve/CVE-2025-39841
- https://access.redhat.com/security/cve/CVE-2025-39849
- https://bugzilla.redhat.com/2395681
- https://bugzilla.redhat.com/2395805
- https://bugzilla.redhat.com/2396419
- https://bugzilla.redhat.com/2396431
- https://bugzilla.redhat.com/2396928
- https://bugzilla.redhat.com/2396944
- https://errata.almalinux.org/8/ALSA-2025-19103.html