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ELSA-2026-83156

Опубликовано: 15 окт. 2026
Источник: oracle-oval
Платформа: Oracle Linux 9

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

Связанные уязвимости

rocky
9 дней назад

Important: kernel security update

rocky
9 дней назад

Important: kernel security, bug fix, and enhancement update

oracle-oval
10 дней назад

ELSA-2026-83207: kernel security, bug fix, and enhancement update (IMPORTANT)

CVSS3: 7.8
ubuntu
5 месяцев назад

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(...

CVSS3: 7
redhat
5 месяцев назад

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(...