Red Hat Security Advisory: kernel security update
Red Hat has issued a security advisory for multiple vulnerabilities in the Linux kernel packages used in Red Hat Enterprise Linux 8 and related products. The update addresses a range of issues including integer overflow, use-after-free, buffer overflow, and other memory corruption vulnerabilities across various kernel subsystems such as EDAC/bluefield, Wi-Fi drivers, KVM, networking, blk-cgroup, SCSI, and dm-verity. These vulnerabilities have been assigned CVE identifiers and are rated with a security impact of Important by Red Hat. The advisory recommends applying the update and rebooting the system to mitigate these issues.
AI Analysis
Technical Summary
This Red Hat security advisory covers multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 8 and related distributions. The fixes address eleven CVEs including CVE-2024-53161 (integer overflow in EDAC/bluefield), CVE-2025-71127 (discarding beacon frames to non-broadcast addresses in mac80211 Wi-Fi), CVE-2026-43133 (KVM nSVM VMLOAD/VMSAVE emulation), CVE-2026-52947 (refcount saturation and use-after-free in qrtr_port_remove), CVE-2026-53182 (oversized EMA RNR list rejection in nl80211), CVE-2026-63802 (use-after-free in blk-cgroup), CVE-2026-63889 (widening FPIN pname walker counter in scsi_transport_fc), CVE-2026-64117 (fast-RX rate capture in mac80211), CVE-2026-68363 (use-after-free in ath9k Wi-Fi driver causing system crash), CVE-2026-72098 (buffer overflow in dm-verity FEC calculation), and CVE-2026-74556 (bounding SCSI response data segment in libiscsi_tcp). Red Hat classifies the update as Important and advises prompt application of the patch and system reboot. No CVSS scores are provided in the advisory; users are directed to CVE pages for detailed scoring.
Potential Impact
The vulnerabilities affect the Linux kernel, which is critical to system operation and security. Exploitation could lead to system crashes, use-after-free conditions, buffer overflows, and integer overflows, potentially impacting system stability and security. The advisory does not report known exploits in the wild. The overall security impact is rated Important by Red Hat, indicating a significant risk if unpatched.
Mitigation Recommendations
Red Hat has released an updated kernel package that addresses these vulnerabilities. Users should apply the update promptly and reboot affected systems to ensure the fixes take effect. Red Hat recommends treating all kernel errata as security-relevant and advises against delaying updates. For detailed update instructions, refer to Red Hat's official guidance at https://access.redhat.com/articles/11258.
Red Hat Security Advisory: kernel security update
Description
Red Hat has issued a security advisory for multiple vulnerabilities in the Linux kernel packages used in Red Hat Enterprise Linux 8 and related products. The update addresses a range of issues including integer overflow, use-after-free, buffer overflow, and other memory corruption vulnerabilities across various kernel subsystems such as EDAC/bluefield, Wi-Fi drivers, KVM, networking, blk-cgroup, SCSI, and dm-verity. These vulnerabilities have been assigned CVE identifiers and are rated with a security impact of Important by Red Hat. The advisory recommends applying the update and rebooting the system to mitigate these issues.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This Red Hat security advisory covers multiple vulnerabilities in the Linux kernel packages for Red Hat Enterprise Linux 8 and related distributions. The fixes address eleven CVEs including CVE-2024-53161 (integer overflow in EDAC/bluefield), CVE-2025-71127 (discarding beacon frames to non-broadcast addresses in mac80211 Wi-Fi), CVE-2026-43133 (KVM nSVM VMLOAD/VMSAVE emulation), CVE-2026-52947 (refcount saturation and use-after-free in qrtr_port_remove), CVE-2026-53182 (oversized EMA RNR list rejection in nl80211), CVE-2026-63802 (use-after-free in blk-cgroup), CVE-2026-63889 (widening FPIN pname walker counter in scsi_transport_fc), CVE-2026-64117 (fast-RX rate capture in mac80211), CVE-2026-68363 (use-after-free in ath9k Wi-Fi driver causing system crash), CVE-2026-72098 (buffer overflow in dm-verity FEC calculation), and CVE-2026-74556 (bounding SCSI response data segment in libiscsi_tcp). Red Hat classifies the update as Important and advises prompt application of the patch and system reboot. No CVSS scores are provided in the advisory; users are directed to CVE pages for detailed scoring.
Potential Impact
The vulnerabilities affect the Linux kernel, which is critical to system operation and security. Exploitation could lead to system crashes, use-after-free conditions, buffer overflows, and integer overflows, potentially impacting system stability and security. The advisory does not report known exploits in the wild. The overall security impact is rated Important by Red Hat, indicating a significant risk if unpatched.
Mitigation Recommendations
Red Hat has released an updated kernel package that addresses these vulnerabilities. Users should apply the update promptly and reboot affected systems to ensure the fixes take effect. Red Hat recommends treating all kernel errata as security-relevant and advises against delaying updates. For detailed update instructions, refer to Red Hat's official guidance at https://access.redhat.com/articles/11258.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:67468
- Cve Count
- 11
- Additional Cves
- ["CVE-2025-71127","CVE-2026-43133","CVE-2026-52947","CVE-2026-53182","CVE-2026-63802","CVE-2026-63889","CVE-2026-64117","CVE-2026-68363","CVE-2026-72098","CVE-2026-74556"]
Threat ID: 6abcddd00df196e1a9da6e42
Added to database: 09/30/2026, 10:00:48 UTC
Last enriched: 09/30/2026, 10:12:15 UTC
Last updated: 09/30/2026, 12:54:53 UTC
Views: 1
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