Описание
ELSA-2026-39083: kernel update (IMPORTANT)
[4.18.0-553.143.1]
- 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 <= 15.3-1.0.3
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34750652]
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985772]
[4.18.0-553.143.1]
- locking/rtmutex: Skip remove_waiter() when waiter is not enqueued (Phil Auld) [RHEL-193334] {CVE-2026-53166}
- rtmutex: Use waiter::task instead of current in remove_waiter() (Phil Auld) [RHEL-193143] {CVE-2026-43499}
[4.18.0-553.142.1]
- KVM: x86: Fix shadow paging use-after-free due to unexpected role (Paolo Bonzini) [RHEL-192411] {CVE-2026-53359}
- KVM: x86: Fix shadow paging use-after-free due to unexpected GFN (Aidan Wallace) [RHEL-186618] {CVE-2026-46113}
- KVM: x86/mmu: pull call to drop_large_spte() into __link_shadow_page() (Paolo Bonzini) [RHEL-186618]
- KVM: x86/mmu: Always pass 0 for @quadrant when gptes are 8 bytes (Aidan Wallace) [RHEL-186618]
- KVM: x86/mmu: Derive shadow MMU page role from parent (Aidan Wallace) [RHEL-186618]
- KVM: x86/mmu: Stop passing 'direct' to mmu_alloc_root() (Aidan Wallace) [RHEL-186618]
- KVM: x86/mmu: Use a bool for direct (Aidan Wallace) [RHEL-186618]
- netfilter: bridge: make ebt_snat ARP rewrite writable (CKI Backport Bot) [RHEL-182341]
- net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change (CKI Backport Bot) [RHEL-182996] {CVE-2025-71066}
- iommu/vt-d: track SVA mm for kernel page table flush notification (Jerry Snitselaar) [RHEL-150534] {CVE-2025-71089}
- iommu/amd: track SVA mm for kernel page table flush notification (Jerry Snitselaar) [RHEL-150534] {CVE-2025-71089}
- x86/mm: flush IOMMU before freeing kernel page table pages (Jerry Snitselaar) [RHEL-150534] {CVE-2025-71089}
- iommu/sva: add kernel page table IOTLB flush notification (Jerry Snitselaar) [RHEL-150534] {CVE-2025-71089}
- iommu/vt-d: Fix incorrect cache invalidation for mm notification (Jerry Snitselaar) [RHEL-150534] {CVE-2025-71089}
- net: atm: fix crash due to unvalidated vcc pointer in sigd_send() (CKI Backport Bot) [RHEL-167045] {CVE-2026-31411}
Обновленные пакеты
Oracle Linux 8
Oracle Linux aarch64
kernel-tools-libs-devel
4.18.0-553.143.1.el8_10
bpftool
4.18.0-553.143.1.el8_10
perf
4.18.0-553.143.1.el8_10
kernel-cross-headers
4.18.0-553.143.1.el8_10
kernel-headers
4.18.0-553.143.1.el8_10
kernel-tools
4.18.0-553.143.1.el8_10
kernel-tools-libs
4.18.0-553.143.1.el8_10
python3-perf
4.18.0-553.143.1.el8_10
Oracle Linux x86_64
kernel-tools-libs-devel
4.18.0-553.143.1.el8_10
kernel-abi-stablelists
4.18.0-553.143.1.el8_10
kernel-core
4.18.0-553.143.1.el8_10
kernel-debug
4.18.0-553.143.1.el8_10
kernel-headers
4.18.0-553.143.1.el8_10
perf
4.18.0-553.143.1.el8_10
bpftool
4.18.0-553.143.1.el8_10
kernel
4.18.0-553.143.1.el8_10
kernel-cross-headers
4.18.0-553.143.1.el8_10
kernel-debug-core
4.18.0-553.143.1.el8_10
kernel-debug-devel
4.18.0-553.143.1.el8_10
kernel-debug-modules
4.18.0-553.143.1.el8_10
kernel-debug-modules-extra
4.18.0-553.143.1.el8_10
kernel-devel
4.18.0-553.143.1.el8_10
kernel-doc
4.18.0-553.143.1.el8_10
kernel-modules
4.18.0-553.143.1.el8_10
kernel-modules-extra
4.18.0-553.143.1.el8_10
kernel-tools
4.18.0-553.143.1.el8_10
kernel-tools-libs
4.18.0-553.143.1.el8_10
python3-perf
4.18.0-553.143.1.el8_10
Ссылки на источники
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change zdi-disclosures@trendmicro.com says: The vulnerability is a race condition between `ets_qdisc_dequeue` and `ets_qdisc_change`. It leads to UAF on `struct Qdisc` object. Attacker requires the capability to create new user and network namespace in order to trigger the bug. See my additional commentary at the end of the analysis. Analysis: static int ets_qdisc_change(struct Qdisc *sch, struct nlattr *opt, struct netlink_ext_ack *extack) { ... // (1) this lock is preventing .change handler (`ets_qdisc_change`) //to race with .dequeue handler (`ets_qdisc_dequeue`) sch_tree_lock(sch); for (i = nbands; i < oldbands; i++) { if (i >= q->nstrict && q->classes[i].qdisc->q.qlen) list_del_init(&q->classes[i].alist); qdisc_purge_queue(q->classes[i].qdisc); } WRITE_ONCE(q->nbands, nbands); for (i = nstrict; i < q->nstrict; i++) { if (q->class...
In the Linux kernel, the following vulnerability has been resolved: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change zdi-disclosures@trendmicro.com says: The vulnerability is a race condition between `ets_qdisc_dequeue` and `ets_qdisc_change`. It leads to UAF on `struct Qdisc` object. Attacker requires the capability to create new user and network namespace in order to trigger the bug. See my additional commentary at the end of the analysis. Analysis: static int ets_qdisc_change(struct Qdisc *sch, struct nlattr *opt, struct netlink_ext_ack *extack) { ... // (1) this lock is preventing .change handler (`ets_qdisc_change`) //to race with .dequeue handler (`ets_qdisc_dequeue`) sch_tree_lock(sch); for (i = nbands; i < oldbands; i++) { if (i >= q->nstrict && q->classes[i].qdisc->q.qlen) list_del_init(&q->classes[i].alist); qdisc_purge_queue(q->classes[i].qdisc); } WRITE_ONCE(q->nbands, nbands); for (i = nstrict; i < q->nstrict; i++) { if (q->class...