Red Hat Security Advisory

RHSA-2026:41234

kernel-rt security update

Released 2026-07-17 · Red Hat rating Important · View on Red Hat →

Fixed in

Red Hat Enterprise Linux for Real Time (v. 7 ELS) kernel-rt-3.10.0-1160.156.1.rt56.1308.el7, kernel-rt-debug-3.10.0-1160.156.1.rt56.1308.el7, kernel-rt-debug-devel-3.10.0-1160.156.1.rt56.1308.el7 +4

Fixes 3 records

TI-2026-31676 CVE-2026-43499 · GHSA-cqc6-9f34-295v

rtmutex: Use waiter::task instead of current in remove_waiter()

HIGH 69

In the Linux kernel, the following vulnerability has been resolved: rtmutex: Use waiter::task instead of current in remove_waiter() remove_waiter() is used by the slowlock paths, but it is also used for proxy-lock rollba…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.05372 Published 2026-05-21 Partial fix · 5.10.261, 5.15.212 +6 CWE-416

TI-2026-33840 CVE-2026-46116 · GHSA-96hg-7p79-ggx2

xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete

LOW 35

In the Linux kernel, the following vulnerability has been resolved: xfrm: defensively unhash xfrm_state lists in __xfrm_state_delete KASAN reproduces a slab-use-after-free in __xfrm_state_delete()'s hlist_del_rcu calls u…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.0013 Published 2026-05-28 Partial fix · 5.10.261, 5.15.210 +6 CWE-416

TI-2026-24241 CVE-2026-31684 · GHSA-gj33-f2q3-mjhg

net: sched: act_csum: validate nested VLAN headers

LOW 24

In the Linux kernel, the following vulnerability has been resolved: net: sched: act_csum: validate nested VLAN headers tcf_csum_act() walks nested VLAN headers directly from skb->data when an skb still carries in-payload…

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00117 Published 2026-04-25 Partial fix · 4.20, 5.10.258 +7