High [CVE-2026-45852] Fix double free in rxe_srq_from_init
This high-severity Red Hat Linux advisory covers CVE-2026-45852 affecting Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support, Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On.
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Summary
Fix double free in rxe_srq_from_init. Red Hat rates this important (CVSS 7).
Affected package(s): kernel, kernel-rt. Resolved in Red Hat advisory RHSA-2026:25120 — update the affected packages (`sudo dnf update`).
Affected products named by the advisory: Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On; Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support; and 5 more.
- kernel-0:3.10.0-1160.154.1.el7
- kernel-rt-0:4.18.0-553.132.1.rt7.473.el8_10
- kernel-0:5.14.0-427.134.1.el9_4
- kernel-0:4.18.0-372.198.1.el8_6
- kernel-0:4.18.0-553.132.1.el8_10
- kernel-0:4.18.0-477.150.1.el8_8
- kernel-0:5.14.0-570.125.1.el9_6
- kernel-0:5.14.0-687.15.1.el9_8
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
- RHSA-2026:25120
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-2026:25120 (`sudo dnf update` / `yum update`).
Official advisory · high-confidence parse· fetched 2 months ago·verify at source
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