Red Hat Security Advisory: kernel security update
This advisory addresses two security vulnerabilities in the Linux kernel packages used by Red Hat Enterprise Linux 10 and related products. The first vulnerability (CVE-2025-39766) involves the net/sched subsystem where the cake_enqueue function did not properly handle conditions past the buffer limit. The second vulnerability (CVE-2025-68741) concerns the scsi qla2xxx driver, which had an issue with improper freeing of a purex item. Red Hat has released an important security update to fix these issues, requiring a system reboot to apply the changes.
AI Analysis
Technical Summary
Two vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 10 are addressed: CVE-2025-39766 fixes the net/sched subsystem by making cake_enqueue return NET_XMIT_CN when past buffer_limit, preventing improper behavior; CVE-2025-68741 fixes the scsi qla2xxx driver to correct improper freeing of a purex item. These fixes are included in a kernel security update released by Red Hat, which must be applied and followed by a system reboot.
Potential Impact
The vulnerabilities affect the Linux kernel core components in Red Hat Enterprise Linux 10 and related distributions. The net/sched issue could lead to incorrect network packet scheduling behavior, while the scsi driver flaw could cause memory management errors. Red Hat rates the update as Important, indicating a significant security impact but no known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released an official security update that addresses these vulnerabilities. Users should apply the kernel update as provided by Red Hat for their specific product versions and architectures. A system reboot is required for the update to take effect. There are no indications that additional mitigation steps are necessary beyond applying the official patch.
Red Hat Security Advisory: kernel security update
Description
This advisory addresses two security vulnerabilities in the Linux kernel packages used by Red Hat Enterprise Linux 10 and related products. The first vulnerability (CVE-2025-39766) involves the net/sched subsystem where the cake_enqueue function did not properly handle conditions past the buffer limit. The second vulnerability (CVE-2025-68741) concerns the scsi qla2xxx driver, which had an issue with improper freeing of a purex item. Red Hat has released an important security update to fix these issues, requiring a system reboot to apply the changes.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Two vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 10 are addressed: CVE-2025-39766 fixes the net/sched subsystem by making cake_enqueue return NET_XMIT_CN when past buffer_limit, preventing improper behavior; CVE-2025-68741 fixes the scsi qla2xxx driver to correct improper freeing of a purex item. These fixes are included in a kernel security update released by Red Hat, which must be applied and followed by a system reboot.
Potential Impact
The vulnerabilities affect the Linux kernel core components in Red Hat Enterprise Linux 10 and related distributions. The net/sched issue could lead to incorrect network packet scheduling behavior, while the scsi driver flaw could cause memory management errors. Red Hat rates the update as Important, indicating a significant security impact but no known exploits in the wild have been reported at this time.
Mitigation Recommendations
Red Hat has released an official security update that addresses these vulnerabilities. Users should apply the kernel update as provided by Red Hat for their specific product versions and architectures. A system reboot is required for the update to take effect. There are no indications that additional mitigation steps are necessary beyond applying the official patch.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:9264
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-68741"]
- Cvss Version
- null
Threat ID: 6a175eede29bf47b50edbf3d
Added to database: 5/27/2026, 9:15:25 PM
Last enriched: 5/27/2026, 9:19:47 PM
Last updated: 5/29/2026, 1:33:25 PM
Views: 13
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