RHSA-2026:36532
Vulnerability from csaf_redhat - Published: 2026-07-08 04:08 - Updated: 2026-07-08 05:34Summary
Red Hat Security Advisory: kpatch-patch-5_14_0-284_117_1, kpatch-patch-5_14_0-284_134_1, kpatch-patch-5_14_0-284_148_1, kpatch-patch-5_14_0-284_158_1, and kpatch-patch-5_14_0-284_172_1 security update
Severity
Important
Notes
Topic: An update for multiple packages is now available for Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a running kernel. This patch module is targeted for kernel-5.14.0-284.117.1.el9_2.
Security Fix(es):
* kernel: Linux kernel KVM: Privilege escalation or denial of service due to improper shadow page table entry handling (CVE-2026-23401)
* kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (CVE-2026-31402)
* kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service (CVE-2026-31419)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in the Linux kernel's Kernel-based Virtual Machine (KVM) component. A local attacker with privileges on the host system could exploit a vulnerability in how KVM handles shadow page table entries (SPTEs) during memory-mapped I/O (MMIO) operations. By manipulating guest page table entries (gPTEs) from host userspace, an attacker could cause KVM to install an MMIO SPTE without properly removing an existing shadow-present SPTE. This improper handling could lead to a kernel warning, resulting in a denial of service or potentially allowing for privilege escalation or information disclosure.
8.1 (High)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-16.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-16.el9_2.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-16.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-16.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-16.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-16.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-16.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-10.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-10.el9_2.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-10.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-10.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-10.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-10.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-10.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-8.el9_2.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-6.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-6.el9_2.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-6.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-6.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-6.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-6.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-6.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-3.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-3.el9_2.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-3.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-3.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-3.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-3.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-3.el9_2.x86_64 | — |
Vendor Fix
fix
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Threats
Impact
Important
A flaw was found in the Linux kernel's NFSv4.0 server (nfsd). A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflicting lock, the attacker can trigger a slab-out-of-bounds write. This corruption of adjacent heap memory could lead to arbitrary code execution or a denial of service.
7.8 (High)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-16.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-16.el9_2.src | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-16.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-16.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-16.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-16.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-16.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-10.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-10.el9_2.src | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-10.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-10.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-10.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-10.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-10.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-8.el9_2.src | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-6.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-6.el9_2.src | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-6.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-6.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-6.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-6.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-6.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-3.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-3.el9_2.src | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-3.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-3.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-3.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-3.el9_2.ppc64le | — |
Vendor Fix
fix
Workaround
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-3.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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Threats
Impact
Important
A flaw was found in the Linux kernel's bonding driver. A local attacker with low privileges could exploit a use-after-free vulnerability in the `bond_xmit_broadcast()` function. This occurs due to a race condition during concurrent slave enslave/release operations, which can lead to the original socket buffer (skb) being double-freed. Successful exploitation of this flaw can result in a system crash, leading to a denial of service.
7.0 (High)
Affected products
Fixed
35 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-16.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-16.el9_2.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-0:1-16.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-16.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debuginfo-0:1-16.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-16.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_117_1-debugsource-0:1-16.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-10.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-10.el9_2.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-0:1-10.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-10.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debuginfo-0:1-10.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-10.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_134_1-debugsource-0:1-10.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-8.el9_2.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debuginfo-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-debugsource-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-6.el9_2.ppc64le | — |
Vendor Fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-6.el9_2.src | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-6.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-6.el9_2.ppc64le | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debuginfo-0:1-6.el9_2.x86_64 | — |
Vendor Fix
fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-6.el9_2.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-6.el9_2.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-3.el9_2.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-3.el9_2.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-3.el9_2.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-3.el9_2.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-3.el9_2.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-3.el9_2.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-3.el9_2.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
References
21 references
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"title": "Statement"
},
{
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"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2454844"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s NFSv4.0 server (nfsd). A remote, unauthenticated attacker can exploit this heap overflow vulnerability in the NFSv4.0 LOCK replay cache. By using two cooperating NFSv4.0 clients, where one sets a lock with a large owner string and another requests a conflicting lock, the attacker can trigger a slab-out-of-bounds write. This corruption of adjacent heap memory could lead to arbitrary code execution or a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This Important flaw in the Linux kernel\u0027s NFSv4.0 server (nfsd) allows a heap overflow. In this flaw a local attacker can trigger this by orchestrating two NFSv4.0 clients to create a conflicting lock with an oversized owner string.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-31402"
},
{
"category": "external",
"summary": "RHBZ#2454844",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2454844"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-31402",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31402"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-31402",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31402"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026040327-CVE-2026-31402-3e6a@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2026040327-CVE-2026-31402-3e6a@gregkh/T"
}
],
"release_date": "2026-04-03T00:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2026-07-08T04:08:17+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"title": "kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache"
},
{
"cve": "CVE-2026-31419",
"cwe": {
"id": "CWE-416",
"name": "Use After Free"
},
"discovery_date": "2026-04-13T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2457829"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s bonding driver. A local attacker with low privileges could exploit a use-after-free vulnerability in the `bond_xmit_broadcast()` function. This occurs due to a race condition during concurrent slave enslave/release operations, which can lead to the original socket buffer (skb) being double-freed. Successful exploitation of this flaw can result in a system crash, leading to a denial of service.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important impact flaw affecting the Linux kernel\u0027s bonding driver in Red Hat Enterprise Linux 6, 8.8 and later, 9.2 and later, and 10, as well as Red Hat In-Vehicle OS 2.0. A local attacker with low privileges could trigger a use-after-free vulnerability, leading to a system crash and denial of service. Red Hat Enterprise Linux 7, 8.2, 8.4, 8.6, and 9.0 are not affected as the vulnerable code is not present.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-31419"
},
{
"category": "external",
"summary": "RHBZ#2457829",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2457829"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-31419",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-31419"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-31419",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31419"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026041353-CVE-2026-31419-e176@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2026041353-CVE-2026-31419-e176@gregkh/T"
}
],
"release_date": "2026-04-13T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-07-08T04:08:17+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"title": "kernel: Linux kernel: Use-after-free in bonding driver leads to denial of service"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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