RHSA-2026:62638
Vulnerability from csaf_redhat - Published: 2026-09-02 14:01 - Updated: 2026-09-03 14:26Summary
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: netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry (CVE-2026-43114)
* kernel: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath (CVE-2026-43112)
* kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle (CVE-2026-53264)
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 CIFS (Common Internet File System) client. When the `cifs_sanitize_prepath` function processes specially crafted input, such as an empty string or a string containing only delimiters, it can attempt to read data beyond its allocated memory buffer. This out-of-bounds read can lead to a system crash, resulting in a denial of service.
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_1-0:1-21.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_1-0:1-21.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_1-0:1-21.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-0:1-21.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-0:1-21.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-0:1-21.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-0:1-21.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_1-0:1-15.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_1-0:1-15.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_1-0:1-15.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-0:1-15.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-0:1-15.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-0:1-15.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-0:1-15.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_1-0:1-13.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_1-0:1-13.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_1-0:1-13.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-0:1-13.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-0:1-13.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-0:1-13.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-0:1-13.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_1-0:1-11.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_1-0:1-11.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_1-0:1-11.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-0:1-11.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-0:1-11.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-0:1-11.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-0:1-11.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_1-0:1-8.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_172_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_172_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_172_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_172_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_172_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_172_1-debugsource-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
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Threats
Impact
Important
A flaw was found in the Linux kernel's netfilter component, specifically within the `nft_set_pipapo_avx2` AVX2 matching functions. This vulnerability occurs when a `pipapo` set with an 'ipv4 . port' key is reloaded. Due to incorrect masking, the system may erroneously identify non-matching elements as duplicates, leading to data integrity issues and unexpected behavior. A remote attacker could potentially exploit this to cause a denial of service or impact data integrity.
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_1-0:1-21.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_1-0:1-21.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_1-0:1-21.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-0:1-21.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-0:1-21.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-0:1-21.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-0:1-21.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_1-0:1-15.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_1-0:1-15.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_1-0:1-15.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-0:1-15.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-0:1-15.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-0:1-15.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-0:1-15.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_1-0:1-13.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_1-0:1-13.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_1-0:1-13.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-0:1-13.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-0:1-13.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-0:1-13.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-0:1-13.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_1-0:1-11.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_1-0:1-11.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_1-0:1-11.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-0:1-11.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-0:1-11.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-0:1-11.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-0:1-11.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_1-0:1-8.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_172_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_172_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_172_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_172_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_172_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_172_1-debugsource-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
Workaround
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Threats
Impact
Important
A flaw was found in the Linux kernel's networking scheduler. A race condition, which is a problem that occurs when multiple operations try to access the same resource at the same time, exists when network filter operations are run concurrently. This can lead to a Use-After-Free (UAF) vulnerability, where the system attempts to use memory that has already been released. This could potentially allow an attacker to cause system instability or execute arbitrary code.
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_1-0:1-21.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_1-0:1-21.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_1-0:1-21.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-0:1-21.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-0:1-21.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-0:1-21.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-0:1-21.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_1-0:1-15.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_1-0:1-15.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_1-0:1-15.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-0:1-15.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-0:1-15.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-0:1-15.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-0:1-15.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_1-0:1-13.el9_2.ppc64le | — |
Vendor Fix
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_148_1-0:1-13.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_1-0:1-13.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-0:1-13.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-0:1-13.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-0:1-13.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-0:1-13.el9_2.x86_64 | — |
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| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-0:1-11.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_1-0:1-11.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_1-0:1-11.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-0:1-11.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-0:1-11.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-0:1-11.el9_2.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_158_1-debugsource-0:1-11.el9_2.x86_64 | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-8.el9_2.src | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-0:1-8.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-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debuginfo-0:1-8.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-0:1-8.el9_2.ppc64le | — |
Vendor Fix
fix
|
|
| Unresolved product id: BaseOS-9.2.0.Z.E4S:kpatch-patch-5_14_0-284_172_1-debugsource-0:1-8.el9_2.x86_64 | — |
Vendor Fix
fix
|
Threats
Impact
Important
References
21 references
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},
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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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"discovery_date": "2026-05-06T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2466994"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s netfilter component, specifically within the `nft_set_pipapo_avx2` AVX2 matching functions. This vulnerability occurs when a `pipapo` set with an \u0027ipv4 . port\u0027 key is reloaded. Due to incorrect masking, the system may erroneously identify non-matching elements as duplicates, leading to data integrity issues and unexpected behavior. A remote attacker could potentially exploit this to cause a denial of service or impact data integrity.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: netfilter: nft_set_pipapo_avx2: don\u0027t return non-matching entry on expiry",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This is an Important flaw in the Linux kernel\u0027s netfilter component, specifically within the `nft_set_pipapo_avx2` functionality. Incorrect processing during AVX2 matching operations can lead to misidentification of network data entries, potentially causing unexpected network filtering behavior and data integrity problems. This issue primarily impacts Red Hat Enterprise Linux 9 and 10 systems configured to utilize AVX2 instructions for netfilter set processing.",
"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-2026-43114"
},
{
"category": "external",
"summary": "RHBZ#2466994",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2466994"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-43114",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-43114"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-43114",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43114"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026050626-CVE-2026-43114-5deb@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2026050626-CVE-2026-43114-5deb@gregkh/T"
}
],
"release_date": "2026-05-06T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-02T14:01:18+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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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
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"details": "Important"
}
],
"title": "kernel: netfilter: nft_set_pipapo_avx2: don\u0027t return non-matching entry on expiry"
},
{
"cve": "CVE-2026-53264",
"cwe": {
"id": "CWE-364",
"name": "Signal Handler Race Condition"
},
"discovery_date": "2026-06-25T00:00:00+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2492851"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in the Linux kernel\u0027s networking scheduler. A race condition, which is a problem that occurs when multiple operations try to access the same resource at the same time, exists when network filter operations are run concurrently. This can lead to a Use-After-Free (UAF) vulnerability, where the system attempts to use memory that has already been released. This could potentially allow an attacker to cause system instability or execute arbitrary code.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "An Important severity race condition was discovered in the Linux kernel\u0027s `net/sched` action API. This presents the opportunity of a use-after-free, which could allow a local attacker to escalate privileges or cause a denial of service due to concurrent filter operations.",
"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"
}
],
"product_status": {
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"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2026-53264"
},
{
"category": "external",
"summary": "RHBZ#2492851",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2492851"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2026-53264",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-53264"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-53264",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53264"
},
{
"category": "external",
"summary": "https://lore.kernel.org/linux-cve-announce/2026062517-CVE-2026-53264-081f@gregkh/T",
"url": "https://lore.kernel.org/linux-cve-announce/2026062517-CVE-2026-53264-081f@gregkh/T"
}
],
"release_date": "2026-06-25T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-09-02T14:01:18+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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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "kernel: net/sched: act_api: use RCU with deferred freeing for action lifecycle"
}
]
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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