Red Hat Security Advisory

RHSA-2025:23789

kernel security update

Released 2025-12-22 · Red Hat rating Moderate · View on Red Hat →

Fixed in

Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.76.1.el9_6, libperf-5.14.0-570.76.1.el9_6
Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.76.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.76.1.el9_6, kernel-64k-devel-5.14.0-570.76.1.el9_6 +12
Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.76.1.el9_6, kernel-64k-5.14.0-570.76.1.el9_6, kernel-64k-core-5.14.0-570.76.1.el9_6 +28
Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.76.1.el9_6, kernel-rt-64k-5.14.0-570.76.1.el9_6, kernel-rt-64k-core-5.14.0-570.76.1.el9_6 +21
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.76.1.el9_6, kernel-rt-core-5.14.0-570.76.1.el9_6, kernel-rt-debug-5.14.0-570.76.1.el9_6 +11

Fixes 2 records

TI-2025-26597 CVE-2025-39925 · GHSA-g35j-5v93-p28m

can: j1939: implement NETDEV_UNREGISTER notification handler

LOW 24

In the Linux kernel, the following vulnerability has been resolved: can: j1939: implement NETDEV_UNREGISTER notification handler syzbot is reporting unregister_netdevice: waiting for vcan0 to become free.

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.0015 Published 2025-10-01 Partial fix · 5.15.220, 6.1.187 +4

TI-2025-26517 CVE-2025-39843 · GHSA-fwr4-vx34-qhjp

mm: slub: avoid wake up kswapd in set_track_prepare

LOW 24

In the Linux kernel, the following vulnerability has been resolved: mm: slub: avoid wake up kswapd in set_track_prepare set_track_prepare() can incur lock recursion.

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00117 Published 2025-09-19 Partial fix · 6.1.151, 6.6.105 +3 CWE-667