Red Hat Security Advisory: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741) * kernel: macvlan: fix possible UAF in macvlan_forward_source() (CVE-2026-23001) * kernel: Kernel: Privilege escalation or denial of service in nf_tables via inverted element activity check (CVE-2026-23111) 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.
AI Analysis
Technical Summary
The Red Hat kernel security update fixes three vulnerabilities in the Linux kernel: CVE-2025-68741 addresses improper freeing of a purex item in the SCSI qla2xxx driver; CVE-2026-23001 fixes a potential use-after-free in the macvlan_forward_source() function; and CVE-2026-23111 mitigates a privilege escalation or denial of service issue in nf_tables caused by an inverted element activity check. These vulnerabilities affect Red Hat Enterprise Linux 10.0 Extended Update Support and associated CodeReady Linux Builder and AppStream/BaseOS EUS products across multiple architectures. The update requires rebooting the system to take effect. Red Hat has classified the security impact as Important.
Potential Impact
The vulnerabilities could lead to memory corruption (use-after-free), improper resource handling, and privilege escalation or denial of service conditions within the kernel. This can affect system stability and security by allowing unauthorized privilege escalation or causing denial of service. The impact is significant enough for Red Hat to rate the update as Important, indicating a high security risk if unpatched.
Mitigation Recommendations
Red Hat has released an official kernel update that addresses these vulnerabilities. Users should apply the update as detailed in the Red Hat advisory (https://access.redhat.com/articles/11258) and reboot their systems to ensure the fixes take effect. No additional mitigations are indicated by the vendor advisory.
Red Hat Security Advisory: kernel security update
Description
The kernel packages contain the Linux kernel, the core of any Linux operating system. Security Fix(es): * kernel: scsi: qla2xxx: Fix improper freeing of purex item (CVE-2025-68741) * kernel: macvlan: fix possible UAF in macvlan_forward_source() (CVE-2026-23001) * kernel: Kernel: Privilege escalation or denial of service in nf_tables via inverted element activity check (CVE-2026-23111) 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Red Hat kernel security update fixes three vulnerabilities in the Linux kernel: CVE-2025-68741 addresses improper freeing of a purex item in the SCSI qla2xxx driver; CVE-2026-23001 fixes a potential use-after-free in the macvlan_forward_source() function; and CVE-2026-23111 mitigates a privilege escalation or denial of service issue in nf_tables caused by an inverted element activity check. These vulnerabilities affect Red Hat Enterprise Linux 10.0 Extended Update Support and associated CodeReady Linux Builder and AppStream/BaseOS EUS products across multiple architectures. The update requires rebooting the system to take effect. Red Hat has classified the security impact as Important.
Potential Impact
The vulnerabilities could lead to memory corruption (use-after-free), improper resource handling, and privilege escalation or denial of service conditions within the kernel. This can affect system stability and security by allowing unauthorized privilege escalation or causing denial of service. The impact is significant enough for Red Hat to rate the update as Important, indicating a high security risk if unpatched.
Mitigation Recommendations
Red Hat has released an official kernel update that addresses these vulnerabilities. Users should apply the update as detailed in the Red Hat advisory (https://access.redhat.com/articles/11258) and reboot their systems to ensure the fixes take effect. No additional mitigations are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:10996
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-23001","CVE-2026-23111"]
- Cvss Version
- null
Threat ID: 6a175eede29bf47b50edbb79
Added to database: 05/27/2026, 21:15:25 UTC
Last enriched: 07/12/2026, 10:47:17 UTC
Last updated: 07/31/2026, 19:22:56 UTC
Views: 81
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