Описание
ELSA-2026-83156: kernel security update (IMPORTANT)
[5.14.0-687.58.1]
- 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]
[5.14.0-687.58.1]
- net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry (Jan Polensky) [RHEL-271472] {CVE-2026-80985}
- net/smc: bound the peer rkey counts in SMC-Rv2 LLC messages (Jan Polensky) [RHEL-271472] {CVE-2026-80985}
- net/smc: fix use-after-free of the LLC qentry in smc_llc_srv_add_link() (Jan Polensky) [RHEL-271472] {CVE-2026-80985}
- KVM: arm64: vgic: Handle race between interrupt affinity change and LPI disabling (Mohammadfaiz Bawa) [RHEL-243814] {CVE-2026-72288}
- SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry (Olga Kornievskaia) [RHEL-275058] {CVE-2026-93207}
- svcrdma: Reject Write/Reply chunks with segcount 0 (Olga Kornievskaia) [RHEL-275076] {CVE-2026-93228}
- NFSD: Prevent client use-after-free during blocked-lock reaping (Olga Kornievskaia) [RHEL-270929] {CVE-2026-90036}
- NFSD: Prevent client use-after-free during delegation revoke (Olga Kornievskaia) [RHEL-270929] {CVE-2026-89659}
- svcrdma: Validate Read chunk positions before reconstruction (Olga Kornievskaia) [RHEL-271453] {CVE-2026-89526}
- udp: fix potential use-after-free in tunnel segmentation (Antoine Tenart) [RHEL-268122] {CVE-2026-74705}
- net/iucv: filter frames in afiucv_hs_rcv() by ingress device (CKI Backport Bot) [RHEL-270908] {CVE-2026-81003}
- wifi: cfg80211: use wiphy work for socket owner autodisconnect (Jose Ignacio Tornos Martinez) [RHEL-240485] {CVE-2026-68404}
- wifi: cfg80211: convert pmsr_free_wk to wiphy_work to fix deadlock (Jose Ignacio Tornos Martinez) [RHEL-240485] {CVE-2026-68404}
- wifi: cfg80211: cancel pmsr_free_wk in cfg80211_pmsr_wdev_down (Jose Ignacio Tornos Martinez) [RHEL-240485] {CVE-2026-68404}
- wifi: mac80211: defer link RX stats percpu free to RCU (Jose Ignacio Tornos Martinez) [RHEL-263788] {CVE-2026-68409}
- wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs (Jose Ignacio Tornos Martinez) [RHEL-259560] {CVE-2026-64030}
- ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get (CKI Backport Bot) [RHEL-261686] {CVE-2026-72262}
- net/iucv: fix use-after-free of a severed iucv_path (CKI Backport Bot) [RHEL-260511] {CVE-2026-68140}
- netfilter: nft_lookup: fix catchall element handling with inverted lookups (CKI Backport Bot) [RHEL-261293] {CVE-2026-72320}
- ALSA: usx2y: bound the hwdep mmap fault offset (CKI Backport Bot) [RHEL-256448] {CVE-2026-74641}
- net/sched: act_tunnel_key: Defer dst_release to RCU callback (CKI Backport Bot) [RHEL-237219] {CVE-2026-68377}
- net/sched: act_ct: Only release RCU read lock after ct_ft (CKI Backport Bot) [RHEL-229654] {CVE-2026-46319}
- net/sched: taprio: fix use-after-free in advance_sched() on schedule switch (CKI Backport Bot) [RHEL-226490] {CVE-2026-53011}
Обновленные пакеты
Oracle Linux 9
Oracle Linux aarch64
kernel-cross-headers
5.14.0-687.58.1.el9_8
kernel-tools-libs-devel
5.14.0-687.58.1.el9_8
libperf
5.14.0-687.58.1.el9_8
kernel-tools
5.14.0-687.58.1.el9_8
kernel-tools-libs
5.14.0-687.58.1.el9_8
kernel-headers
5.14.0-687.58.1.el9_8
perf
5.14.0-687.58.1.el9_8
python3-perf
5.14.0-687.58.1.el9_8
rtla
5.14.0-687.58.1.el9_8
rv
5.14.0-687.58.1.el9_8
Oracle Linux x86_64
kernel-uki-virt-addons
5.14.0-687.58.1.el9_8
kernel-debug-devel
5.14.0-687.58.1.el9_8
kernel-debug-devel-matched
5.14.0-687.58.1.el9_8
kernel-devel
5.14.0-687.58.1.el9_8
kernel-devel-matched
5.14.0-687.58.1.el9_8
kernel-doc
5.14.0-687.58.1.el9_8
kernel-headers
5.14.0-687.58.1.el9_8
perf
5.14.0-687.58.1.el9_8
python3-perf
5.14.0-687.58.1.el9_8
rtla
5.14.0-687.58.1.el9_8
rv
5.14.0-687.58.1.el9_8
kernel-cross-headers
5.14.0-687.58.1.el9_8
kernel-tools-libs-devel
5.14.0-687.58.1.el9_8
libperf
5.14.0-687.58.1.el9_8
kernel
5.14.0-687.58.1.el9_8
kernel-abi-stablelists
5.14.0-687.58.1.el9_8
kernel-core
5.14.0-687.58.1.el9_8
kernel-debug
5.14.0-687.58.1.el9_8
kernel-debug-core
5.14.0-687.58.1.el9_8
kernel-debug-modules
5.14.0-687.58.1.el9_8
kernel-debug-modules-core
5.14.0-687.58.1.el9_8
kernel-debug-modules-extra
5.14.0-687.58.1.el9_8
kernel-debug-uki-virt
5.14.0-687.58.1.el9_8
kernel-modules
5.14.0-687.58.1.el9_8
kernel-modules-core
5.14.0-687.58.1.el9_8
kernel-modules-extra
5.14.0-687.58.1.el9_8
kernel-tools
5.14.0-687.58.1.el9_8
kernel-tools-libs
5.14.0-687.58.1.el9_8
kernel-uki-virt
5.14.0-687.58.1.el9_8
Ссылки на источники
Связанные уязвимости
ELSA-2026-83207: kernel security, bug fix, and enhancement update (IMPORTANT)
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: Only release RCU read lock after ct_ft When looking up a flow table in act_ct in tcf_ct_flow_table_get(), rhashtable_lookup_fast() internally opens and closes an RCU read critical section before returning ct_ft. The tcf_ct_flow_table_cleanup_work() can complete before refcount_inc_not_zero() is invoked on the returned ct_ft resulting in a UAF on the already freed ct_ft object. This vulnerability can lead to privilege escalation. Analysis from zdi-disclosures@trendmicro.com: When initializing act_ct, tcf_ct_init() is called, which internally triggers tcf_ct_flow_table_get(). static int tcf_ct_flow_table_get(struct net *net, struct tcf_ct_params *params) { struct zones_ht_key key = { .net = net, .zone = params->zone }; struct tcf_ct_flow_table *ct_ft; int err = -ENOMEM; mutex_lock(&zones_mutex); ct_ft = rhashtable_lookup_fast(&zones_ht, &key, zones_params); // [1] if (ct_ft && refcount_inc_not_zero(...
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_ct: Only release RCU read lock after ct_ft When looking up a flow table in act_ct in tcf_ct_flow_table_get(), rhashtable_lookup_fast() internally opens and closes an RCU read critical section before returning ct_ft. The tcf_ct_flow_table_cleanup_work() can complete before refcount_inc_not_zero() is invoked on the returned ct_ft resulting in a UAF on the already freed ct_ft object. This vulnerability can lead to privilege escalation. Analysis from zdi-disclosures@trendmicro.com: When initializing act_ct, tcf_ct_init() is called, which internally triggers tcf_ct_flow_table_get(). static int tcf_ct_flow_table_get(struct net *net, struct tcf_ct_params *params) { struct zones_ht_key key = { .net = net, .zone = params->zone }; struct tcf_ct_flow_table *ct_ft; int err = -ENOMEM; mutex_lock(&zones_mutex); ct_ft = rhashtable_lookup_fast(&zones_ht, &key, zones_params); // [1] if (ct_ft && refcount_inc_not_zero(...