Описание
ELSA-2026-82807: kernel security update (IMPORTANT)
[4.18.0-553.173.1]
- 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]
[4.18.0-553.173.1]
- drm/amdkfd: Add TLB flush after MES queue eviction/suspension (Jocelyn Falempe) [RHEL-262108] {CVE-2026-89811}
- drm/amd/display: set new_stream to NULL after release (Jocelyn Falempe) [RHEL-260521] {CVE-2026-68236}
- drm/vmwgfx: use check_add_overflow for shader size+offset bound (Jocelyn Falempe) [RHEL-258131] {CVE-2026-80887}
- drm/amdgpu/vce: fix integer overflow in image size (Jocelyn Falempe) [RHEL-237823 RHEL-268877] {CVE-2026-68108}
- drm/dp/mst: fix buffer overflows in sideband chunk accumulation (Jocelyn Falempe) [RHEL-240862] {CVE-2026-68278}
- ipv6: validate extension header length before copying to cmsg (Antoine Tenart) [RHEL-225371] {CVE-2026-63920}
- wifi: mac80211: defer link RX stats percpu free to RCU (CKI Backport Bot) [RHEL-263760] {CVE-2026-68409}
- cifs: validate DFS referral string offsets (CKI Backport Bot) [RHEL-261990] {CVE-2026-72318}
- openvswitch: vport: fix self-deadlock on release of tunnel ports (Timothy Redaelli) [RHEL-253844] {CVE-2026-31678}
- openvswitch: defer tunnel netdev_put to RCU release (Timothy Redaelli) [RHEL-253844] {CVE-2026-31678}
Обновленные пакеты
Oracle Linux 8
Oracle Linux aarch64
kernel-tools-libs-devel
4.18.0-553.173.1.el8_10
bpftool
4.18.0-553.173.1.el8_10
kernel-cross-headers
4.18.0-553.173.1.el8_10
kernel-headers
4.18.0-553.173.1.el8_10
kernel-tools
4.18.0-553.173.1.el8_10
kernel-tools-libs
4.18.0-553.173.1.el8_10
perf
4.18.0-553.173.1.el8_10
python3-perf
4.18.0-553.173.1.el8_10
Oracle Linux x86_64
kernel-tools-libs-devel
4.18.0-553.173.1.el8_10
bpftool
4.18.0-553.173.1.el8_10
kernel
4.18.0-553.173.1.el8_10
kernel-abi-stablelists
4.18.0-553.173.1.el8_10
kernel-core
4.18.0-553.173.1.el8_10
kernel-cross-headers
4.18.0-553.173.1.el8_10
kernel-debug
4.18.0-553.173.1.el8_10
kernel-debug-core
4.18.0-553.173.1.el8_10
kernel-debug-devel
4.18.0-553.173.1.el8_10
kernel-debug-modules
4.18.0-553.173.1.el8_10
kernel-debug-modules-extra
4.18.0-553.173.1.el8_10
kernel-devel
4.18.0-553.173.1.el8_10
kernel-doc
4.18.0-553.173.1.el8_10
kernel-headers
4.18.0-553.173.1.el8_10
kernel-modules
4.18.0-553.173.1.el8_10
kernel-modules-extra
4.18.0-553.173.1.el8_10
kernel-tools
4.18.0-553.173.1.el8_10
kernel-tools-libs
4.18.0-553.173.1.el8_10
perf
4.18.0-553.173.1.el8_10
python3-perf
4.18.0-553.173.1.el8_10
Ссылки на источники
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdev_put to RCU release ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe vport->dev. Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let vport_netdev_free() drop the reference from the RCU callback, matching the non-tunnel destroy path and avoiding additional synchronization under RTNL.
In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdev_put to RCU release ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe vport->dev. Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let vport_netdev_free() drop the reference from the RCU callback, matching the non-tunnel destroy path and avoiding additional synchronization under RTNL.
In the Linux kernel, the following vulnerability has been resolved: openvswitch: defer tunnel netdev_put to RCU release ovs_netdev_tunnel_destroy() may run after NETDEV_UNREGISTER already detached the device. Dropping the netdev reference in destroy can race with concurrent readers that still observe vport->dev. Do not release vport->dev in ovs_netdev_tunnel_destroy(). Instead, let vport_netdev_free() drop the reference from the RCU callback, matching the non-tunnel destroy path and avoiding additional synchronization under RTNL.
