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: vsock/virtio: discard packets if the transport changes (CVE-2025-21669) * kernel: net: gso: fix ownership in __udp_gso_segment (CVE-2025-21926) * kernel: xsk: fix an integer overflow in xp_create_and_assign_umem() (CVE-2025-21997) * kernel: net: fix geneve_opt length integer overflow (CVE-2025-22055) * kernel: wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi (CVE-2025-37943) 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
Red Hat Product Security released an advisory (RHSA-2025:8669) for Red Hat Enterprise Linux 10 kernel packages addressing five vulnerabilities: CVE-2025-21669 (vsock/virtio packet discard on transport change), CVE-2025-21926 (ownership fix in __udp_gso_segment), CVE-2025-21997 (integer overflow in xp_create_and_assign_umem), CVE-2025-22055 (integer overflow in geneve_opt length), and CVE-2025-37943 (invalid data access in ath12k_dp_rx_h_undecap_nwifi). These vulnerabilities affect the core Linux kernel components and drivers. The advisory provides updated kernel packages that fix these issues. The update requires a system reboot to take effect. No CVSS scores are provided in the advisory, but the overall impact is rated as important.
Potential Impact
The vulnerabilities affect critical kernel components and drivers, potentially leading to issues such as improper packet handling, memory corruption, and invalid data access. These could impact system stability and security. The advisory does not report any known exploits in the wild. The overall security impact is rated as important by Red Hat, indicating a high risk if left unpatched.
Mitigation Recommendations
Red Hat has released updated kernel packages that address these vulnerabilities. Users should apply the kernel update as described in the advisory (https://access.redhat.com/articles/11258) and reboot their systems to ensure the fixes take effect. This is the official and recommended remediation. No additional mitigation steps are indicated by the vendor.
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: vsock/virtio: discard packets if the transport changes (CVE-2025-21669) * kernel: net: gso: fix ownership in __udp_gso_segment (CVE-2025-21926) * kernel: xsk: fix an integer overflow in xp_create_and_assign_umem() (CVE-2025-21997) * kernel: net: fix geneve_opt length integer overflow (CVE-2025-22055) * kernel: wifi: ath12k: Fix invalid data access in ath12k_dp_rx_h_undecap_nwifi (CVE-2025-37943) 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
Red Hat Product Security released an advisory (RHSA-2025:8669) for Red Hat Enterprise Linux 10 kernel packages addressing five vulnerabilities: CVE-2025-21669 (vsock/virtio packet discard on transport change), CVE-2025-21926 (ownership fix in __udp_gso_segment), CVE-2025-21997 (integer overflow in xp_create_and_assign_umem), CVE-2025-22055 (integer overflow in geneve_opt length), and CVE-2025-37943 (invalid data access in ath12k_dp_rx_h_undecap_nwifi). These vulnerabilities affect the core Linux kernel components and drivers. The advisory provides updated kernel packages that fix these issues. The update requires a system reboot to take effect. No CVSS scores are provided in the advisory, but the overall impact is rated as important.
Potential Impact
The vulnerabilities affect critical kernel components and drivers, potentially leading to issues such as improper packet handling, memory corruption, and invalid data access. These could impact system stability and security. The advisory does not report any known exploits in the wild. The overall security impact is rated as important by Red Hat, indicating a high risk if left unpatched.
Mitigation Recommendations
Red Hat has released updated kernel packages that address these vulnerabilities. Users should apply the kernel update as described in the advisory (https://access.redhat.com/articles/11258) and reboot their systems to ensure the fixes take effect. This is the official and recommended remediation. No additional mitigation steps are indicated by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:8669
- Cve Count
- 5
- Additional Cves
- ["CVE-2025-21926","CVE-2025-21997","CVE-2025-22055","CVE-2025-37943"]
- Cvss Version
- null
Threat ID: 6a3da1cf4853345fc18241de
Added to database: 06/25/2026, 21:46:55 UTC
Last enriched: 06/25/2026, 22:07:33 UTC
Last updated: 07/03/2026, 20:51:22 UTC
Views: 10
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.