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Medium ELSA-2026-6570 4 CVEs

Moderate: kernel security update (Oracle Linux 9)

Published Apr 7, 2026 · Updated Apr 7, 2026

Summary

[5.14.0-611.47.1]
- Disable UKI signing [Orabug: 36571828]
- Update Oracle Linux certificates (Kevin Lyons)
- Disable signing for aarch64 (Ilya Okomin)
- Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237]
- Update x509.genkey [Orabug: 24817676]
- Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.5]
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34729535]
- Add Oracle Linux IMA certificates
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985764]

[5.14.0-611.47.1]
- net/mlx5: Fix ECVF vports unload on shutdown flow (CKI Backport Bot) [RHEL-154537] {CVE-2025-38109}
- netfilter: nf_tables: fix use-after-free in nf_tables_addchain() (CKI Backport Bot) [RHEL-153269] {CVE-2026-23231}
- ice: Fix PTP NULL pointer dereference during VSI rebuild (CKI Backport Bot) [RHEL-150245] {CVE-2026-23210}
- netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() (CKI Backport Bot) [RHEL-149748] {CVE-2026-23111}

[5.14.0-611.46.1]
- ice: fix page leak for zero-size Rx descriptors (CKI Backport Bot) [RHEL-154094]
- net: mana: Reduce waiting time if HWC not responding (Maxim Levitsky) [RHEL-92243]

Fixed packages 29

ReleasePackageFixed in
Oracle Linux · 9 kernel 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-abi-stablelists 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-core 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-cross-headers 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-debug 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-debug-core 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-debug-devel 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-debug-devel-matched 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-debug-modules 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-debug-modules-core 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-debug-modules-extra 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-debug-uki-virt 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-devel 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-devel-matched 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-doc 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-headers 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-modules 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-modules-core 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-modules-extra 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-tools 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-tools-libs 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-tools-libs-devel 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-uki-virt 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 kernel-uki-virt-addons 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 libperf 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 perf 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 python3-perf 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 rtla 0:5.14.0-611.47.1.el9_7
Oracle Linux · 9 rv 0:5.14.0-611.47.1.el9_7

Vulnerabilities 4

  • High 7.8
    CVE-2026-23111 Public exploit

    netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate()

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix inverted genmask check in nft_map_catchall_activate() nft_map_catchall_activate() has an inverted element activity check compared to its non-catchall counterpart nft…

  • High 7.8
    CVE-2026-23231 Public exploit

    netfilter: nf_tables: fix use-after-free in nf_tables_addchain()

    In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix use-after-free in nf_tables_addchain() nf_tables_addchain() publishes the chain to table->chains via list_add_tail_rcu() (in nft_chain_add()) before registering hook…

  • Unscored —

    net/mlx5: Fix ECVF vports unload on shutdown flow

    In the Linux kernel, the following vulnerability has been resolved: net/mlx5: Fix ECVF vports unload on shutdown flow Fix shutdown flow UAF when a virtual function is created on the embedded chip (ECVF) of a BlueField device. In such case the vport acl ingres…

  • Unscored —

    ice: Fix PTP NULL pointer dereference during VSI rebuild

    In the Linux kernel, the following vulnerability has been resolved: ice: Fix PTP NULL pointer dereference during VSI rebuild Fix race condition where PTP periodic work runs while VSI is being rebuilt, accessing NULL vsi->rx_rings. The sequence was: 1. ice_ptp…