Red Hat Security Advisory: kernel security update
This Red Hat security advisory addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 9. The update fixes issues including double free, use-after-free, out-of-bounds reads, variable overflow, and uninitialized memory access across various kernel components such as media (uvcvideo), wifi (iwlwifi), RDMA, ext4 filesystem, network scheduling, and memory management. The advisory rates the overall security impact as moderate. Systems must be updated and rebooted to apply the fixes.
AI Analysis
Technical Summary
The advisory covers a set of ten vulnerabilities in the Linux kernel shipped with Red Hat Enterprise Linux 9. These include CVE-2024-57980 (double free in uvcvideo), CVE-2025-21905 (string length limitation in iwlwifi firmware), CVE-2025-22085 (use-after-free in RDMA core), CVE-2025-22091 (page_size overflow in RDMA/mlx5), CVE-2025-22113 and CVE-2025-22121 (out-of-bounds and journaling errors in ext4), CVE-2025-37797 (use-after-free in net_sched hfsc), CVE-2025-37958 (invalid pmd migration dereference), CVE-2025-38086 (uninitialized access in net ch9200), and CVE-2025-38110 (out-of-bounds clause 45 read/write in net mdiobus). Red Hat has released updated kernel packages that address these vulnerabilities. The update requires a system reboot to take effect.
Potential Impact
The vulnerabilities collectively could lead to memory corruption issues such as double free, use-after-free, out-of-bounds memory access, and variable overflow within the kernel. These issues may affect system stability and security, potentially allowing privilege escalation or denial of service. However, the advisory rates the overall impact as moderate and does not report known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released official kernel updates for Red Hat Enterprise Linux 9 that fix these vulnerabilities. Users should apply the updated kernel packages as provided in the advisory RHSA-2025:11861 and reboot their systems to ensure the fixes take effect. No additional mitigation steps are indicated beyond applying the official patches and rebooting.
Red Hat Security Advisory: kernel security update
Description
This Red Hat security advisory addresses multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 9. The update fixes issues including double free, use-after-free, out-of-bounds reads, variable overflow, and uninitialized memory access across various kernel components such as media (uvcvideo), wifi (iwlwifi), RDMA, ext4 filesystem, network scheduling, and memory management. The advisory rates the overall security impact as moderate. Systems must be updated and rebooted to apply the fixes.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The advisory covers a set of ten vulnerabilities in the Linux kernel shipped with Red Hat Enterprise Linux 9. These include CVE-2024-57980 (double free in uvcvideo), CVE-2025-21905 (string length limitation in iwlwifi firmware), CVE-2025-22085 (use-after-free in RDMA core), CVE-2025-22091 (page_size overflow in RDMA/mlx5), CVE-2025-22113 and CVE-2025-22121 (out-of-bounds and journaling errors in ext4), CVE-2025-37797 (use-after-free in net_sched hfsc), CVE-2025-37958 (invalid pmd migration dereference), CVE-2025-38086 (uninitialized access in net ch9200), and CVE-2025-38110 (out-of-bounds clause 45 read/write in net mdiobus). Red Hat has released updated kernel packages that address these vulnerabilities. The update requires a system reboot to take effect.
Potential Impact
The vulnerabilities collectively could lead to memory corruption issues such as double free, use-after-free, out-of-bounds memory access, and variable overflow within the kernel. These issues may affect system stability and security, potentially allowing privilege escalation or denial of service. However, the advisory rates the overall impact as moderate and does not report known exploits in the wild at this time.
Mitigation Recommendations
Red Hat has released official kernel updates for Red Hat Enterprise Linux 9 that fix these vulnerabilities. Users should apply the updated kernel packages as provided in the advisory RHSA-2025:11861 and reboot their systems to ensure the fixes take effect. No additional mitigation steps are indicated beyond applying the official patches and rebooting.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:11861
- Cve Count
- 10
- Additional Cves
- ["CVE-2025-21905","CVE-2025-22085","CVE-2025-22091","CVE-2025-22113","CVE-2025-22121","CVE-2025-37797","CVE-2025-37958","CVE-2025-38086","CVE-2025-38110"]
- Cvss Version
- null
Threat ID: 6a3da1e74853345fc182e871
Added to database: 06/25/2026, 21:47:19 UTC
Last enriched: 06/25/2026, 22:34:55 UTC
Last updated: 07/03/2026, 11:34:37 UTC
Views: 69
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