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Red Hat Security Advisory: kernel security, bug fix, and enhancement update

0
High
Published: 07/21/2026 (07/21/2026, 18:24:11 UTC)
Source: GCVE Database
Vendor/Project: Red Hat Product Security
Product: Red Hat

Description

This Red Hat security advisory addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 10. The issues include memory initialization flaws, denial of service due to memory leaks, use-after-free bugs, and race conditions across various kernel subsystems such as crypto, TPM, flex_proportions, cxl/port, xfrm, fanotify, DRM, ice, Bluetooth, and CAN BCM. The update also includes bug fixes and enhancements unrelated to security. The advisory rates the security impact as Important and requires a system reboot after applying the update.

Affected software

redhat/kernel
pkg:rpm/redhat/kernel
Affected versions
=10<10.2.1

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AI-Powered Analysis

Machine-generated threat intelligence

AILast updated: 07/22/2026, 00:47:19 UTC

Technical Analysis

The advisory covers 11 distinct kernel vulnerabilities affecting Red Hat Enterprise Linux 10. Key fixes include zero-initializing memory allocated via sock_kmalloc (CVE-2025-71113), addressing a denial of service from a memory leak in tpm2_load_cmd (CVE-2025-71147), fixing use-after-free bugs in cxl_detach_ep() (CVE-2026-31530) and drm/xe/dma-buf retry loops (CVE-2026-52950), correcting double-free in ice driver (CVE-2026-53009), and adding missing locking in Bluetooth l2cap (CVE-2026-53071). Additional fixes address race conditions and false positives in permission events. The advisory references Red Hat's errata RHSA-2026:42919 for full details and instructs users to apply the update and reboot systems to mitigate these issues.

Potential Impact

The vulnerabilities collectively could lead to memory corruption issues such as use-after-free and double-free, denial of service via memory leaks, and incorrect permission event handling. These flaws affect core kernel components and drivers, potentially impacting system stability and security. No known exploits in the wild have been reported at the time of this advisory. The overall security impact is rated as Important by Red Hat.

Mitigation Recommendations

An updated kernel package is available from Red Hat as part of the RHSA-2026:42919 advisory. Users should apply the update promptly and reboot their systems to ensure the fixes take effect. This update addresses all listed vulnerabilities and includes additional bug fixes and enhancements. No further action beyond applying the official update and rebooting is required.

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Technical Details

Gcve Source
db.gcve.eu
Csaf Category
csaf_security_advisory
Csaf Version
2.0
Publisher
Red Hat Product Security
Advisory Id
RHSA-2026:42919
Cve Count
11
Additional Cves
["CVE-2025-71147","CVE-2026-23168","CVE-2026-31530","CVE-2026-46116","CVE-2026-46150","CVE-2026-46215","CVE-2026-52950","CVE-2026-52976","CVE-2026-53009","CVE-2026-53071"]
Cvss Version
null

Threat ID: 6a600ab59c2644c7f8fe20f2

Added to database: 07/22/2026, 00:11:33 UTC

Last enriched: 07/22/2026, 00:47:19 UTC

Last updated: 07/26/2026, 08:52:00 UTC

Views: 5

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