High [CVE-2026-23204] use skb_header_pointer_careful()
This high-severity Red Hat Linux advisory covers CVE-2026-23204 affecting Red Hat Enterprise Linux 1, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 7.
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Summary
use skb_header_pointer_careful(). Red Hat rates this moderate (CVSS 7.3).
Weakness: CWE-1285. Affected package(s): kernel, kernel-rt.
Resolved in Red Hat advisory RHSA-2026:10756 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 1; Red Hat Enterprise Linux 8; Red Hat Enterprise Linux 7; Red Hat Enterprise Linux 9.
- kernel-0:6.12.0-55.68.1.el10_0
- kernel-0:4.18.0-193.195.1.el8_2
- kernel-0:3.10.0-1160.148.1.el7
- kernel-0:4.18.0-477.136.1.el8_8
- kernel-0:4.18.0-305.189.1.el8_4
- kernel-0:5.14.0-687.10.1.el9_8
- kernel-0:5.14.0-427.121.1.el9_4
- kernel-0:4.18.0-372.188.1.el8_6
- kernel-0:5.14.0-70.175.1.el9_0
- kernel-0:5.14.0-284.166.1.el9_2
- kernel-rt-0:5.14.0-284.166.1.rt14.451.el9_2
- kernel-0:5.14.0-570.108.1.el9_6
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:10756
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
Mitigation checklist
- Update the affected package(s) to the fixed version shipped in RHSA-2026:10756 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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