Red Hat Security Advisory: kernel-rt security update
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: Linux kernel: xHCI driver isochronous event handling race condition leading to data loss or UAF (CVE-2025-37882) * kernel: page_pool: Fix use-after-free in page_pool_recycle_in_ring (CVE-2025-38129) 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 kernel-rt packages for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions contain two vulnerabilities: CVE-2025-37882, a race condition in the xHCI driver isochronous event handling that may cause data loss or use-after-free conditions; and CVE-2025-38129, a use-after-free flaw in the page_pool_recycle_in_ring function. These vulnerabilities could potentially lead to memory corruption or instability. Red Hat has issued a security advisory (RHSA-2026:4244) providing updated kernel-rt packages that address these issues. The update requires a system reboot to take effect.
Potential Impact
The vulnerabilities could cause data loss or use-after-free conditions in the kernel, potentially leading to system instability or memory corruption. The advisory rates the security impact as Moderate. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated kernel-rt packages that fix these vulnerabilities. Users of Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions should apply the security update as described in the Red Hat advisory RHSA-2026:4244 and reboot the system to ensure the fixes take effect. Patch status is confirmed as available via the vendor advisory.
Red Hat Security Advisory: kernel-rt security update
Description
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: Linux kernel: xHCI driver isochronous event handling race condition leading to data loss or UAF (CVE-2025-37882) * kernel: page_pool: Fix use-after-free in page_pool_recycle_in_ring (CVE-2025-38129) 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 kernel-rt packages for Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions contain two vulnerabilities: CVE-2025-37882, a race condition in the xHCI driver isochronous event handling that may cause data loss or use-after-free conditions; and CVE-2025-38129, a use-after-free flaw in the page_pool_recycle_in_ring function. These vulnerabilities could potentially lead to memory corruption or instability. Red Hat has issued a security advisory (RHSA-2026:4244) providing updated kernel-rt packages that address these issues. The update requires a system reboot to take effect.
Potential Impact
The vulnerabilities could cause data loss or use-after-free conditions in the kernel, potentially leading to system instability or memory corruption. The advisory rates the security impact as Moderate. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released updated kernel-rt packages that fix these vulnerabilities. Users of Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions should apply the security update as described in the Red Hat advisory RHSA-2026:4244 and reboot the system to ensure the fixes take effect. Patch status is confirmed as available via 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-2026:4244
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-38129"]
- Cvss Version
- null
Threat ID: 6a3da1c34853345fc181eaf1
Added to database: 06/25/2026, 21:46:43 UTC
Last enriched: 06/25/2026, 21:54:49 UTC
Last updated: 07/03/2026, 08:51:21 UTC
Views: 12
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