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Red Hat Security Advisory

RHSA-2026:3110

kernel-rt security update

Released 2026-02-23 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 5 records

TI-2025-25587 CVE-2025-38248 · GHSA-2838-84rj-32xc

bridge: mcast: Fix use-after-free during router port configuration

Priority LOW 36

In the Linux kernel, the following vulnerability has been resolved: bridge: mcast: Fix use-after-free during router port configuration The bridge maintains a global list of ports behind which a multicast router resides.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.003 Published 2025-07-09 Partial fix · 5.15.224, 6.1.191 +4 CWE-416
TI-2026-18511 CVE-2026-23074 · GHSA-7cwq-2xv8-7cqw

net/sched: Enforce that teql can only be used as root qdisc

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: net/sched: Enforce that teql can only be used as root qdisc Design intent of teql is that it is only supposed to be used as root qdisc.

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0019 Published 2026-02-04 Fixed in 5.10.249, 5.15.199 +5 CWE-416
TI-2025-25470 CVE-2025-38129 · GHSA-98jq-f2h2-hqf4

page_pool: Fix use-after-free in page_pool_recycle_in_ring

Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: page_pool: Fix use-after-free in page_pool_recycle_in_ring syzbot reported a uaf in page_pool_recycle_in_ring: BUG: KASAN: slab-use-after-free in lock_r…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00199 Published 2025-07-03 Partial fix · 5.10.259, 5.15.198 +5 CWE-416
TI-2025-42268 CVE-2025-68800 · GHSA-jhc9-chhp-3xfj

mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats

Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats Cited commit added a dedicated mutex (instead of RTNL) to protect the multica…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00151 Published 2026-01-13 Partial fix · 5.10.248, 5.15.198 +5 CWE-416
TI-2025-26736 CVE-2025-40064 · GHSA-c442-5cxr-p4xq

smc: Fix use-after-free in __pnet_find_base_ndev().

Priority LOW 33

In the Linux kernel, the following vulnerability has been resolved: smc: Fix use-after-free in __pnet_find_base_ndev().

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0015 Published 2025-10-28 Partial fix · 6.1.187, 6.6.156 +3