In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs IEEE80211_MLE_STA_EPCS_CONTROL_LINK_ID is 0x000f, so link_id extracted from a PRIO_ACCESS ML element PER_STA_PROFILE subelement can be 0..15. sdata->link[] has IEEE80211_MLD_MAX_NUM_LINKS (15) entries (indices 0..14), making index 15 out-of-bounds. A connected WiFi 7 AP can trigger this by sending an EPCS Enable Response action frame with a PER_STA_PROFILE subelement where link_id = 15. The unsolicited-notification path (dialog_token = 0) is reachable any time EPCS is already enabled, without any prior client request. sdata->link[15] reads into the first word of sdata->activate_links_work (a wiphy_work whose embedded list_head is non-NULL after INIT_LIST_HEAD), so the NULL check on the result does not catch the invalid access. The garbage pointer is then passed to ieee80211_sta_wmm_params(), which dereferences link->sdata and crashes the kernel. The same class of bug was fixed for ieee80211_ml_reconfiguration() by commit 162d331d833d ("wifi: mac80211: bounds-check link_id in ieee80211_ml_reconfiguration").

rocky_linux RLSA-2026:83156: RLSA-2026:83156: kernel security update (Important)

rocky_linux RLSA-2026:83207: RLSA-2026:83207: kernel security, bug fix, and enhancement update (Important)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:83156 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: net/sched: act_ct: Only release RCU read lock after ct_ft (CVE-2026-46319)

    * kernel: net/sched: taprio: fix use-after-free in advance_sched() on schedule switch (CVE-2026-53011)

    * kernel: wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs (CVE-2026-64030)

    * kernel: wifi: cfg80211: use wiphy work for socket owner autodisconnect (CVE-2026-68404)

    * kernel: Linux kernel: Denial of Service due to use-after-free in act_tunnel_key (CVE-2026-68377)

    * kernel: net/iucv: fix use-after-free of a severed iucv_path (CVE-2026-68140)

    * kernel: wifi: mac80211: defer link RX stats percpu free to RCU (CVE-2026-68409)

    * kernel: KVM: arm64: vgic: Handle race between interrupt affinity change and LPI disabling     (CVE-2026-72288)

    * kernel: ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get (CVE-2026-72262)

    * kernel: netfilter: nft_lookup: fix catchall element handling with inverted lookups (CVE-2026-72320)

    * kernel: ALSA: usx2y: bound the hwdep mmap fault offset (CVE-2026-74641)

    * kernel: udp: fix potential use-after-free in tunnel segmentation (CVE-2026-74705)

    * kernel: net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry (CVE-2026-80985)

    * kernel: svcrdma: Validate Read chunk positions before reconstruction (CVE-2026-89526)

    * kernel: net/iucv: filter frames in afiucv_hs_rcv() by ingress device (CVE-2026-81003)

    * kernel: NFSD: Prevent client use-after-free during blocked-lock reaping (CVE-2026-90036)

    * kernel: SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry (CVE-2026-93207)

    * kernel: svcrdma: Reject Write/Reply chunks with segcount 0 (CVE-2026-93228)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:83207 advisory.

    The kernel packages contain the Linux kernel, the core of any Linux operating system.

    Security Fix(es):

    * kernel: netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation (CVE-2026-45859)

    * kernel: net/sched: act_ct: Only release RCU read lock after ct_ft (CVE-2026-46319)

    * kernel: net/sched: taprio: fix use-after-free in advance_sched() on schedule switch (CVE-2026-53011)

    * kernel: USB: serial: mxuport: fix memory corruption with small endpoint (CVE-2026-63899)

    * kernel: bridge: mcast: Fix a possible use-after-free when removing a bridge port (CVE-2026-64032)

    * kernel: wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs (CVE-2026-64030)

    * kernel: Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close (CVE-2026-63974)

    * kernel: idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init() (CVE-2026-64162)

    * kernel: Linux kernel: Denial of Service due to use-after-free in act_tunnel_key (CVE-2026-68377)

    * kernel: net/iucv: fix use-after-free of a severed iucv_path (CVE-2026-68140)

    * kernel: ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get (CVE-2026-72262)

    * kernel: dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open() (CVE-2026-74574)

    * kernel: ALSA: usx2y: bound the hwdep mmap fault offset (CVE-2026-74641)

    * kernel: net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry (CVE-2026-80985)

    * kernel: svcrdma: Validate Read chunk positions before reconstruction (CVE-2026-89526)

    * kernel: nfsd: don't free session slots that are still in use (CVE-2026-89689)

    * kernel: NFSD: Prevent client use-after-free during blocked-lock reaping (CVE-2026-90036)

    * kernel: media: cx231xx: reject geometry changes while the VBI queue is busy (CVE-2026-89894)

    * kernel: SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry (CVE-2026-93207)

    * kernel: svcrdma: Reject Write/Reply chunks with segcount 0 (CVE-2026-93228)

    Bug Fix(es) and Enhancement(s):

    * cannot use VFs of i40e/ice NIC in bond device (JIRA:RHEL-143410)

    * ionic: commit backported to 9.8 missing in 10.2 (JIRA:RHEL-165657)

    For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and     other related information, refer to the CVE page(s) listed in the References section.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: bounds-check link_id     in ieee80211_ml_epcs IEEE80211_MLE_STA_EPCS_CONTROL_LINK_ID is 0x000f, so link_id extracted from a     PRIO_ACCESS ML element PER_STA_PROFILE subelement can be 0..15. sdata->link[] has     IEEE80211_MLD_MAX_NUM_LINKS (15) entries (indices 0..14), making index 15 out-of-bounds. A connected WiFi     7 AP can trigger this by sending an EPCS Enable Response action frame with a PER_STA_PROFILE subelement     where link_id = 15. The unsolicited-notification path (dialog_token = 0) is reachable any time EPCS is     already enabled, without any prior client request. sdata->link[15] reads into the first word of     sdata->activate_links_work (a wiphy_work whose embedded list_head is non-NULL after INIT_LIST_HEAD), so     the NULL check on the result does not catch the invalid access. The garbage pointer is then passed to     ieee80211_sta_wmm_params(), which dereferences link->sdata and crashes the kernel. The same class of bug     was fixed for ieee80211_ml_reconfiguration() by commit 162d331d833d (wifi: mac80211: bounds-check link_id     in ieee80211_ml_reconfiguration). (CVE-2026-64030)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
366029	RHEL 9 : kernel (RHSA-2026:83156)	Nessus	Red Hat Local Security Checks	Local	critical
366024	RHEL 10 : kernel (RHSA-2026:83207)	Nessus	Red Hat Local Security Checks	Local	critical
343532	Ubuntu 24.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (GCP) vulnerabilities (USN-8728-1)	Nessus	Ubuntu Local Security Checks	Local	high
340681	Ubuntu 24.04 LTS / 26.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8663-1)	Nessus	Ubuntu Local Security Checks	Local	high
340045	Ubuntu 26.04 LTS : Linux kernel (NVIDIA BaseOS) vulnerabilities (USN-8664-1)	Nessus	Ubuntu Local Security Checks	Local	high
328296	Linux Distros Unpatched Vulnerability : CVE-2026-64030	Nessus	Misc.	Local	high

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