Important: Unbreakable Enterprise kernel security update (Oracle Linux 8)

[5.15.0-321.202.5]
- Revert 'ip6_tunnel: Fix usage of skb_vlan_inet_prepare()' (Harshit Mogalapalli) [Orabug: 39476647]
- smb: client: reject userspace cifs.spnego descriptions (Asim Viladi Oglu Manizada) [Orabug: 39463672]

[5.15.0-321.202.4]
- tun: free page on build_skb failure in tun_xdp_one() (Weiming Shi) [Orabug: 39429143]
- tap: free page on error paths in tap_get_user_xdp() (Weiming Shi) [Orabug: 39429143]
- tun: free page on short-frame rejection in tun_xdp_one() (Weiming Shi) [Orabug: 39429143]

[5.15.0-321.202.3]
- net: skbuff: propagate shared-frag marker through frag-transfer helpers (Hyunwoo Kim) [Orabug: 39368827] {CVE-2026-46300}
- net: skbuff: preserve shared-frag marker during coalescing (William Bowling) [Orabug: 39368827]
- ptrace: slightly saner 'get_dumpable()' logic (Linus Torvalds) [Orabug: 39384274] {CVE-2026-46333}
- mm/hugetlb: fix excessive IPI broadcasts when unsharing PMD tables using mmu_gather (David Hildenbrand (Red Hat)) [Orabug: 38474901]
- Revert 'mm/hugetlb: add option to allows disabling CVE-2025-38085 mitigation' (Samasth Norway Ananda) [Orabug: 38474901]
- mm/rmap: fix two comments related to huge_pmd_unshare() (David Hildenbrand (Red Hat)) [Orabug: 38474901]
- mm/hugetlb: fix two comments related to huge_pmd_unshare() (David Hildenbrand (Red Hat)) [Orabug: 38474901]
- mm/hugetlb: fix hugetlb_pmd_shared() (David Hildenbrand (Red Hat)) [Orabug: 38474901]

[5.15.0-321.202.2]
- dpaa2-switch: Fix interrupt storm after receiving bad if_id in IRQ handler (Guenter Roeck)
- Revert 'arm64: dts: qcom: sdm845-oneplus: Mark l14a regulator as boot-on' (Sasha Levin)
- ip6_tunnel: Fix usage of skb_vlan_inet_prepare() (Ben Hutchings)
- hwmon: (max16065) Use READ/WRITE_ONCE to avoid compiler optimization induced race (Gui-Dong Han)
- wifi: wlcore: Return -ENOMEM instead of -EAGAIN if there is not enough headroom (Guenter Roeck)
- sched: idle: Make skipping governor callbacks more consistent (Rafael J. Wysocki)
- nvmet-tcp: fix use-before-check of sg in bounds validation (Cengiz Can)
- remoteproc: mediatek: Unprepare SCP clock during system suspend (Tzung-Bi Shih)
- net: openvswitch: Avoid releasing netdev before teardown completes (Toke Hoiland-Jorgensen)
- ACPI: processor: Fix previous acpi_processor_errata_piix4() fix (Rafael J. Wysocki)
- net: hsr: fix VLAN add unwind on slave errors (Luka Gejak)
- x86/CPU/AMD: Add a fix for AMD-SB-7052 (Prathyushi Nangia) [Orabug: 39327141] {CVE-2025-54518}
- 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}
- KVM: x86: disable preemption around the call to kvm_arch_vcpu_{un|}blocking (Maxim Levitsky) [Orabug: 39334996]
- KVM: Don't block+unblock when halt-polling is successful (Sean Christopherson) [Orabug: 39334996]
- nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (Jeff Layton) [Orabug: 39167616] {CVE-2026-31402}
- net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks (Victor Nogueira) [Orabug: 39103230] {CVE-2026-23270}
- exadata: tools: perf: update column to comm_nodigit (Stephen Brennan) [Orabug: 39327019]
- perf report: Add comm_nodigit sort key (Stephen Brennan) [Orabug: 39327019]
- Revert 'tools: perf: add comm_ignore_digit column' (Stephen Brennan) [Orabug: 39327019]

[5.15.0-321.202.1]
- virtio-net: add cond_resched() to the command waiting loop (Jason Wang) [Orabug: 39291988]
- virtio-net: convert rx mode setting to use workqueue (Jason Wang) [Orabug: 39291988]
- x86: KVM: Add common feature flag for AMD's PSFD (Sean Christopherson) [Orabug: 35586248]
- KVM: x86: Insert 'AMD' in KVM_X86_FEATURE_PSFD (Jim Mattson) [Orabug: 35586248]
- KVM: x86: Expose Predictive Store Forwarding Disable (Babu Moger) [Orabug: 35586248]
- i2c: designware: fix __i2c_dw_disable() in case master is holding SCL low (Yann Sionneau) [Orabug: 39174661]

[5.15.0-320.202.8]
- iommu/arm-smmu-v3: Handle zeroed A4-2C HTTU override settings (Joao Martins) [Orabug: 39186453]
- iommu: Move IOMMU_DIRTY_NO_CLEAR define (Shameer Kolothum) [Orabug: 39186453]
- iommu/arm-smmu-v3: Enable HTTU for stage1 with io-pgtable mapping (Kunkun Jiang) [Orabug: 39186453]
- iommu/arm-smmu-v3: Add support for dirty tracking in domain alloc (Joao Martins) [Orabug: 39186453]
- iommu/io-pgtable-arm: Add read_and_clear_dirty() support (Shameer Kolothum) [Orabug: 39186453]
- iommu/arm-smmu-v3: Add feature detection for HTTU (Jean-Philippe Brucker) [Orabug: 39186453]

[5.15.0-320.202.7]
- crypto: algif_aead - Fix minimum RX size check for decryption (Herbert Xu) [Orabug: 39250686,39331104] {CVE-2026-43077}
- crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl (Herbert Xu) [Orabug: 39250686,39331109] {CVE-2026-43078}
- crypto: authencesn - Fix src offset when decrypting in-place (Herbert Xu) [Orabug: 39250686]
- crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption (Herbert Xu) [Orabug: 39250686,39300910] {CVE-2026-43033}
- crypto: authenc - use memcpy_sglist() instead of null skcipher (Eric Biggers) [Orabug: 39250686]
- crypto: algif_aead - snapshot IV for async AEAD requests (Douya Le) [Orabug: 39250686]
- crypto: algif_aead - Revert to operating out-of-place (Herbert Xu) [Orabug: 39250686,39283867,39291961] {CVE-2026-31431}
- crypto: algif_aead - use memcpy_sglist() instead of null skcipher (Eric Biggers) [Orabug: 39250686] {CVE-2026-31431}
- crypto: scatterwalk - Backport memcpy_sglist() (Eric Biggers) [Orabug: 39250686]
- uek-rpm: Enable FWCTL for aarch64 (Dave Kleikamp) [Orabug: 39252913]

[5.15.0-320.202.6]
- Revert 'rds: Drop rds conn in connect worker if not in down state.' (Vijayendra Suman) [Orabug: 39277795]
- uek-rpm: CONFIG_INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON should be set (Dave Kleikamp) [Orabug: 39109819]
- iommu/vt-d: Disallow dirty tracking if incoherent page walk (Lu Baolu) [Orabug: 39109819]
- iommu/vt-d: Set variable intel_dir