ALSA-2026:26428
ALSA-2026:26428 · Important: kernel-rt security update
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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: mptcp: fix slab-use-after-free in __inet_lookup_established (CVE-2026-31669) * kernel: xen/privcmd: fix double free via VMA splitting (CVE-2026-31787) * kernel: Buffer overflow in drivers/xen/sys-hypervisor.c (CVE-2026-31786) * kernel: wifi: brcmfmac: validate bsscfg indices in IF events (CVE-2026-43110) * kernel: netfilter: flowtable: strictly check for maximum number of actions (CVE-2026-43329) * kernel: Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (CVE-2026-46056) * kernel: wifi: mac80211: drop stray 'static' from fast-RX rx_result (CVE-2026-46152) * kernel: wifi: mac80211: remove station if connection prep fails (CVE-2026-46125) 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.
Fix available
- Published
- Updated
Stack: system
Affected products and versions
kernel-rt AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
kernel-rt-core AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
kernel-rt-debug AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
kernel-rt-debug-core AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
kernel-rt-debug-devel AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
kernel-rt-debug-modules AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
kernel-rt-debug-modules-extra AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
kernel-rt-devel AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
kernel-rt-modules AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
kernel-rt-modules-extra AlmaLinux:8
- Affected ranges
- ECOSYSTEM: < 4.18.0-553.134.1.rt7.475.el8_10
Update to 4.18.0-553.134.1.rt7.475.el8_10
Original sources
- https://access.redhat.com/errata/RHSA-2026:26428
- https://access.redhat.com/security/cve/CVE-2026-31669
- https://access.redhat.com/security/cve/CVE-2026-31786
- https://access.redhat.com/security/cve/CVE-2026-31787
- https://access.redhat.com/security/cve/CVE-2026-43110
- https://access.redhat.com/security/cve/CVE-2026-43329
- https://access.redhat.com/security/cve/CVE-2026-46056
- https://access.redhat.com/security/cve/CVE-2026-46125
- https://access.redhat.com/security/cve/CVE-2026-46152
- https://bugzilla.redhat.com/2461503
- https://bugzilla.redhat.com/2464092
- https://bugzilla.redhat.com/2464096
- https://bugzilla.redhat.com/2467014
- https://bugzilla.redhat.com/2468124
- https://bugzilla.redhat.com/2482181
- https://bugzilla.redhat.com/2482563
- https://bugzilla.redhat.com/2482608
- https://errata.almalinux.org/8/ALSA-2026-26428.html
- https://osv.dev/vulnerability/ALSA-2026:26428