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Red Hat Security Advisory

RHSA-2026:49213

kernel-rt security update

Released 2026-07-31 · Red Hat rating Important · View on Red Hat →

Fixed in

Fixes 4 records

Priority MEDIUM 50

In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle tcf_classify() can return TC_ACT_CONSUMED while the skb is held by the defragmentation e…

CVSS 3.1CRITICAL 9.8 Network No auth No interaction EPSS 0.00655 Published 2026-07-26 Fixed in 5.15.212, 6.1.178 +6 CWE-416
Priority LOW 35

In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: ensure safe access to master conntrack Holding reference on the expectation is not sufficient, the master conntrack object can jus…

CVSS 3.1HIGH 7.8 Local Low privileges No interaction EPSS 0.00101 Published 2026-05-06 Partial fix · 6.1.176, 6.6.143 +4 CWE-362
Priority LOW 32

In the Linux kernel, the following vulnerability has been resolved: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing…

CVSS 3.1HIGH 7.1 Local Low privileges No interaction EPSS 0.0013 Published 2026-05-28 Partial fix · 5.10.258, 5.15.209 +6 CWE-863
Priority LOW 24

In the Linux kernel, the following vulnerability has been resolved: rtnetlink: add missing netlink_ns_capable() check for peer netns rtnl_newlink() lacks a CAP_NET_ADMIN capability check on the peer network namespace whe…

CVSS 3.1MEDIUM 5.5 Local Low privileges No interaction EPSS 0.00119 Published 2026-04-30 Partial fix · 6.18.24, 6.19.14 +1