Red Hat Security AdvisoryRHSA-2026:51746
kernel security, bug fix, and enhancement update
Released 2026-08-07 · Red Hat rating Important · View on Red Hat →
Fixed in
- Red Hat Enterprise Linux AppStream E4S (v.9.4) kernel-64k-debug-devel-5.14.0-427.143.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.143.1.el9_4, kernel-64k-devel-5.14.0-427.143.1.el9_4 +11
- Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool-7.3.0-427.143.1.el9_4, kernel-5.14.0-427.143.1.el9_4, kernel-64k-5.14.0-427.143.1.el9_4 +29
- Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt-5.14.0-427.143.1.el9_4, kernel-rt-core-5.14.0-427.143.1.el9_4, kernel-rt-debug-5.14.0-427.143.1.el9_4 +9
- Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt-5.14.0-427.143.1.el9_4, kernel-rt-core-5.14.0-427.143.1.el9_4, kernel-rt-debug-5.14.0-427.143.1.el9_4 +11
Fixes 3 records
Priority MEDIUM 48
Arm C1-Ultra, C1-Premium, Neoverse V3 & V3AE, Neoverse V2, Neoverse V1, Neoverse-N2, Neoverse-N1, Cortex-X925, Cortex-X4, Cortex-X3, Cortex-X2, Cortex-X1 & X1C, Cortex-A710, Cortex-A78, A78AE & A78C, Cortex-A77, Cortex-A…
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00544 · Published 2026-06-09 · Partial fix CWE-362
Priority LOW 36
In the Linux kernel, the following vulnerability has been resolved: net: openvswitch: reject oversized nested action attrs Open vSwitch stores generated flow actions as nlattrs, whose nla_len field is u16.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.0038 · Published 2026-07-27 · Partial fix · 5.15.212, 6.1.178 +6 CWE-190
Priority LOW 32
In the Linux kernel, the following vulnerability has been resolved: selinux: fix overlayfs mmap() and mprotect() access checks The existing SELinux security model for overlayfs is to allow access if the current task is a…
CVSS 3.1HIGH 7.1· Local · Low privileges · No interaction · EPSS 0.00123 · Published 2026-05-27 · Partial fix · 6.6.144, 6.12.95 +3 CWE-862
THREATIST.IORead the docs