[El-errata] ELSA-2026-50257 Important: Oracle Linux 9 Unbreakable Enterprise kernel security update: Dirty Frag

[Errata Announcements for Oracle Linux]

Oracle Linux Security Advisory ELSA-2026-50257

http://linux.oracle.com/errata/ELSA-2026-50257.html

The following updated rpms for Oracle Linux 9 have been uploaded to the Unbreakable Linux Network:

x86_64:
bpftool-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-core-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-debug-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-debug-core-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-debug-devel-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-debug-modules-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-debug-modules-extra-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-devel-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-doc-5.15.0-319.201.4.6.el9uek.noarch.rpm
kernel-uek-modules-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-modules-extra-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-container-5.15.0-319.201.4.6.el9uek.x86_64.rpm
kernel-uek-container-debug-5.15.0-319.201.4.6.el9uek.x86_64.rpm



SRPMS:
http://oss.oracle.com/ol9/SRPMS-updates/kernel-uek-5.15.0-319.201.4.6.el9uek.src.rpm

Related CVEs:

CVE-2026-43284




Description of changes:

[5.15.0-319.201.4.6]
- xfrm: esp: ipv4: fix up flags setting (Greg Kroah-Hartman)  [Orabug: 39342679]  {CVE-2026-43284}
- xfrm: esp: avoid in-place decrypt on shared skb frags (Kuan-Ting Chen)  [Orabug: 39342679]  {CVE-2026-43284}

[5.15.0-319.201.4.5]
- iommu/arm-smmu-v3: Handle zeroed A4-2C HTTU override settings (Joao Martins)  [Orabug: 39312049]
- iommu: Move IOMMU_DIRTY_NO_CLEAR define (Shameer Kolothum)  [Orabug: 39312049]
- iommu/arm-smmu-v3: Enable HTTU for stage1 with io-pgtable mapping (Kunkun Jiang)  [Orabug: 39312049]
- iommu/arm-smmu-v3: Add support for dirty tracking in domain alloc (Joao Martins)  [Orabug: 39312049]
- iommu/io-pgtable-arm: Add read_and_clear_dirty() support (Shameer Kolothum)  [Orabug: 39312049]
- iommu/arm-smmu-v3: Add feature detection for HTTU (Jean-Philippe Brucker)  [Orabug: 39312049]