RHSA-2026:3873
Vulnerability from csaf_redhat - Published: 2026-03-05 11:40 - Updated: 2026-03-09 07:53Summary
Red Hat Security Advisory: kpatch-patch-5_14_0-70_121_1, kpatch-patch-5_14_0-70_124_1, kpatch-patch-5_14_0-70_132_1, kpatch-patch-5_14_0-70_144_1, and kpatch-patch-5_14_0-70_155_1 security update
Notes
Topic
An update for multiple packages is now available for Red Hat Enterprise Linux 9.0 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-5.14.0-70.121.1.el9_0.
Security Fix(es):
* kernel: Linux kernel: vsock vulnerability may lead to memory corruption (CVE-2025-40248)
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.
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},
{
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"text": "This vulnerability is rated Important for Red Hat Enterprise Linux 7, 8, 9, and 10. A flaw in the Linux kernel\u0027s `vsock` component allows a local attacker to cause memory corruption, potentially leading to a denial of service or privilege escalation. This occurs when a `connect()` operation on an established socket is interrupted by a signal or timeout, leading to an incorrect handling of the socket\u0027s state.",
"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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}
],
"title": "kernel: Linux kernel: vsock vulnerability may lead to memory corruption"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
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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