Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - net：删除 dev_validate_header dev_validate_header（） 中的 CAP_SYS_RAWIO 零填充 当对 CAP_SYS_RAWIO 持有者的短链路层标头进行零填充时直接读取 dev->hard_header_len：if （capable（CAP_SYS_RAWIO）） { memset（ll_header + len， 0， dev->hard_header_len - len）; return true; }数据包发送路径在从之前的 hard_header_len 读取分配余量的 skbs 上调用 dev_validate_header（）。如果重新配置设备，使得在验证前 dev->hard_header_len 增加，则 memset 会写过预留的缓冲区，即越界写入。如今，这种越界写入在某些SOCK_RAW路径中被掩盖，因为相同的并发增加首先可使 skb_push（） 超出预留余量并触发 skb_under_panic（）。在使这些hard_header_len读取保持一致之前删除零填充分支，如此一来快照补丁就不会将响亮的错误变成无声覆盖。只有可变长度 L2 协议才能使用此路径，其中长度< hard_header_len但长度 >= min_header_len。没有剩余的树内变量长度 L2 协议实现 header_ops->validate，并且零填充和接受短标头的CAP_SYS_RAWIO绕过除了允许测试蓄意畸形输入之外，没有任何实际价值。删除 CAP_SYS_RAWIO 分支。dev_validate_header（） 中 dev->hard_header_len 的其余读取仅作比较，对内存安全没有影响。（CVE-2026-80731）

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且廠商未提供可用的修補程式。

  - net：移除 dev_validate_header dev_validate_header（） 中的CAP_SYS_RAWIO零填充當 CAP_SYS_RAWIO 持有者的短連結層標頭為零填充時，直接讀取 dev->hard_header_len：if （capable（CAP_SYS_RAWIO）） { memset（ll_header + len， 0， dev->hard_header_len - len）; 返回 true; }封包傳送路徑會在 skbs 上呼叫 dev_validate_header（），其餘量是從較早的 hard_header_len 讀取中配置的。如果重新設定裝置，讓 dev->hard_header_len 在驗證前增加，則 memset 會寫入超過保留的緩衝區，即越界寫入。如今，這種越界寫入在某些SOCK_RAW路徑中被遮罩，因為相同的並行增加首先會使 skb_push（） 超過保留的餘量並觸發 skb_under_panic（）。在使這些hard_header_len讀取一致之前，先移除零填充分支，這樣快照修正就不會將大聲的錯誤變成無訊息的覆寫。只有可變長度的 L2 通訊協定才能到達此路徑，其中 len < hard_header_len但 len >= min_header_len。沒有剩餘的樹內可變長度 L2 協議實現 header_ops->validate，並且零填充和接受短標頭的CAP_SYS_RAWIO繞過除了允許測試故意格式錯誤的輸入之外沒有實際價值。刪除 CAP_SYS_RAWIO 分支。dev_validate_header（） 中 dev->hard_header_len 的其餘讀取只是比較，對記憶體安全沒有影響。（CVE-2026-80731）

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

Linux/Unix ホストには、ベンダーが提供するパッチが利用できない脆弱性の影響を受ける複数のパッケージがインストールされています。

  - net:CAP_SYS_RAWIO ホルダーのショートリンクレイヤーヘッダーをゼロパディングするとき、dev_validate_header dev_validate_header() でCAP_SYS_RAWIOゼロパディングを削除します dev->hard_header_len を直接読み取ります:if (capable(CAP_SYS_RAWIO)) { memset(ll_header + len, 0, dev->hard_header_len - len); true を返します; }パケット送信パスは、以前の hard_header_len 読み取りからヘッドルームが割り当てられた skbs で dev_validate_header() を呼び出します。検証前に dev->hard_header_len が増加するようにデバイスが再構成されると、memset は予約されたバッファを超えて書き込み、領域外書き込みを行います。この領域外書き込みは現在、一部の SOCK_RAW パスでマスクされています。これは、同じ同時数の増加が、最初に skb_push() に予約されたヘッドルームを超過させ、skb_under_panic() を発生させる可能性があるためです。これらのhard_header_len読み込みを整合性を持たせる前にゼロパディングブランチを削除し、スナップショットの修正によって大きなパニックがサイレント上書きに変わらないようにします。このパスは可変長 L2 プロトコルに対してのみ到達され、len < hard_header_len が len >= min_header_len です。残りのツリー内可変長 L2 プロトコルは header_ops->validate を実装せず、ゼロパッドと短いヘッダーを受け入れる CAP_SYS_RAWIO バイパスには、意図的に無効な形式の入力のテストを許可する以上の実用的な価値はありません。CAP_SYS_RAWIO ブランチをドロップします。dev_validate_header()のdev->hard_header_lenの残りの読み取りは比較のみであり、メモリの安全性には影響しません。(CVE-2026-80731)

Nessus は、ベンダーから報告されたパッケージの存在に依存していることに注意してください。

The remote Oracle Linux 8 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-500249 advisory.

    - inet: frags: strip GSO state from fragments before reassembly (Xinyang Ge)  [Orabug: 39974835]     {CVE-2026-80590}
    - KVM: x86/mmu: Stop needlessly making MMU pages available for TDP MMU faults (David Matlack) [Orabug:
    39830590] {CVE-2026-64561}
    - KVM: x86: Check for invalid/obsolete root *after* making MMU pages available (Sean Christopherson)     [Orabug: 39830590,39832946] {CVE-2026-64561}
    - KVM: x86/mmu: Rename __direct_map() to direct_map() (David Matlack) [Orabug: 39830590] {CVE-2026-64561}
    - KVM: x86/mmu: Split out TDP MMU page fault handling (David Matlack) [Orabug: 39830590] {CVE-2026-64561}
    - KVM: Rename mmu_notifier_* to mmu_invalidate_* (Chao Peng) [Orabug: 39830590] {CVE-2026-64561}
    - KVM: x86/mmu: Document the 'rules' for using host_pfn_mapping_level() (Sean Christopherson) [Orabug:
    39830590] {CVE-2026-64561}
    - KVM: x86/mmu: Rename pte_list_{destroy,remove}() to show they zap SPTEs (Sean Christopherson) [Orabug:
    39830590] {CVE-2026-64561}
    - KVM: x86/mmu: Directly 'destroy' PTE list when recycling rmaps (Sean Christopherson) [Orabug: 39830590]     {CVE-2026-64561}
    - x86/bugs: Make Safe-RET robust against interrupt injection (Borislav Petkov) [Orabug: 39784615,39853775]     {CVE-2026-68480}
    - x86/alternatives: Disable interrupts and sync when optimizing NOPs in place (Thomas Gleixner) [Orabug:
    39784615] {CVE-2026-68480}
    - x86/alternative: Support relocations in alternatives (Peter Zijlstra) [Orabug: 39784615]     {CVE-2026-68480}
    - x86/alternative: Make debug-alternative selective (Peter Zijlstra) [Orabug: 39784615] {CVE-2026-68480}
    - x86/alternatives: Add alt_instr.flags (Borislav Petkov) [Orabug: 39784615] {CVE-2026-68480}
    - x86/asm: Provide ALTERNATIVE_3 (Peter Zijlstra) [Orabug: 39784615] {CVE-2026-68480}
    - posix-cpu-timers: Prevent UAF caused by non-leader exec() race (Thomas Gleixner) [Orabug: 39807438]     {CVE-2026-64560}
    - ALSA: seq: Fix uninitialised heap leak in snd_seq_event_dup() (Hyeongjun An) [Orabug: 39853280]     {CVE-2026-64479}
    - crypto: qat - validate RSA CRT component lengths (Giovanni Cabiddu) [Orabug: 39785885] {CVE-2026-64304}
    - btrfs: do not trim a device which is not writeable (Qu Wenruo) [Orabug: 39843586] {CVE-2026-64593}
    - bpf: Allow LPM map access from sleepable BPF programs (Vlad Poenaru) [Orabug: 39786046] {CVE-2026-64352}
    - bpf: Reject fragmented frames in devmap (Zhao Zhang) [Orabug: 39786052] {CVE-2026-64355}
    - HID: appleir: fix UAF on pending key_up_timer in remove() (Manish Khadka) [Orabug: 39786074]     {CVE-2026-64363}
    - proc: protect ptrace_may_access() with exec_update_lock (part 1) (Jann Horn) [Orabug: 39786095]     {CVE-2026-64371}
    - HID: multitouch: fix out-of-bounds bit access on mt_io_flags (Trung Nguyen) [Orabug: 39786078]     {CVE-2026-64364}
    - proc: protect ptrace_may_access() with exec_update_lock (FD links) (Jann Horn) [Orabug: 39786112]     {CVE-2026-64375}
    - smb: client: harden POSIX SID length parsing (Zihan Xi) [Orabug: 39786128] {CVE-2026-64380}
    - smb: client: mask server-provided mode to 07777 in modefromsid (Norbert Manthey) [Orabug: 39786124]     {CVE-2026-64379}
    - smb: client: resolve SWN tcon from live registrations (Michael Bommarito) [Orabug: 39786200]     {CVE-2026-64401}
    - smb: client: Fix next buffer leak in receive_encrypted_standard() (Haoxiang Li) [Orabug: 39786131]     {CVE-2026-64381}
    - Bluetooth: L2CAP: cancel pending_rx_work before taking conn->lock (Runyu Xiao) [Orabug: 39760901]     {CVE-2026-64206}
    - netfilter: ebtables: zero chainstack array (Florian Westphal) [Orabug: 39786232] {CVE-2026-64413}
    - staging: rtl8723bs: fix OOB reads in rtw_get_sec_ie(), rtw_get_wapi_ie(), and rtw_get_wps_attr()     (Alexandru Hossu) [Orabug: 39786307] {CVE-2026-64441}
    - PCI: mediatek: Fix IRQ domain leak when port fails to enable (Manivannan Sadhasivam) [Orabug: 39786366]     {CVE-2026-64461}
    - staging: rtl8723bs: fix heap buffer overflow in rtw_cfg80211_set_wpa_ie() (Alexandru Hossu) [Orabug:
    39786327] {CVE-2026-64446}
    - smb: client: restrict implied bcc[0] exemption to responses without data area (Shoichiro Miyamoto)     [Orabug: 39786332] {CVE-2026-64448}
    - vfio/pci: Release the VGA arbiter client on register_device() failure (Alex Williamson) [Orabug:
    39786409] {CVE-2026-64475}
    - ACPI: NFIT: core: Fix acpi_nfit_init() error cleanup (Rafael J. Wysocki) [Orabug: 39786502]     {CVE-2026-64510}
    - ACPI: CPPC: Suppress UBSAN warning caused by field misuse (Jeremy Linton) [Orabug: 39786508]     {CVE-2026-64512}
    - net: openvswitch: reject oversized nested action attrs (Asim Viladi Oglu Manizada) [Orabug:
    39789564,39816016,39819143] {CVE-2026-64531}
    - nvmet-tcp: check INIT_FAILED before nvmet_req_uninit in digest error path (Shivam Kumar) [Orabug:
    39789573] {CVE-2026-64534}
    - sctp: validate STALE_COOKIE cause length before reading staleness (Weiming Shi) [Orabug: 39794431]     {CVE-2026-64551}
    - netfilter: bridge: fix stale prevhdr pointer in br_ip6_fragment() (Xiang Mei) [Orabug: 39794442]     {CVE-2026-64554}
    - Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup() (Weiming Shi) [Orabug: 39794421]     {CVE-2026-64549}
    - net: usb: net1080: validate packet_len before pad-byte access in rx_fixup (Xiang Mei) [Orabug: 39794412]     {CVE-2026-64547}
    - usbnet: gl620a: fix out-of-bounds read in genelink_rx_fixup() (Xiang Mei) [Orabug: 39794387]     {CVE-2026-64540}
    - net/sched: cls_api: Handle TC_ACT_CONSUMED in tcf_qevent_handle (Jamal Hadi Salim) [Orabug: 39787017]     {CVE-2026-64530}
    - net, bpf: check master for NULL in xdp_master_redirect() (Xiang Mei) [Orabug: 39794405] {CVE-2026-64545}
    - ipv6: Fix null-ptr-deref in fib6_nh_mtu_change(). (Xiang Mei) [Orabug: 39794379] {CVE-2026-64538}
    - drm/edid: fix OOB read in drm_parse_tiled_block() (Xiang Mei) [Orabug: 39794408] {CVE-2026-64546}
    - net: psample: fix info leak in PSAMPLE_ATTR_DATA (Jakub Kicinski) [Orabug: 39794438] {CVE-2026-64553}
    - bpf, sockmap: reject overflowing copy + len in bpf_msg_push_data() (Weiming Shi) [Orabug: 39794417]     {CVE-2026-64548}
    - crypto: asymmetric_keys - fix OOB read in pefile_digest_pe_contents (Weiming Shi) [Orabug: 39794401]     {CVE-2026-64544}
    - xfs: fail recovery on a committed log item with no regions (Weiming Shi) [Orabug: 39760871]     {CVE-2026-64187}
    - fuse: re-lock request before returning from fuse_ref_folio() (Joanne Koong) [Orabug: 39785786]     {CVE-2026-64266}
    - Input: touchwin - reset the packet index on every complete packet (Bryam Vargas) [Orabug: 39785802]     {CVE-2026-64271}
    - Input: elan_i2c - prevent division by zero and arithmetic underflow (Ranjan Kumar) [Orabug: 39785819]     {CVE-2026-64275}
    - Input: synaptics-rmi4 - bound the F30 keymap to the GPIO/LED count (Bryam Vargas) [Orabug: 39785823]     {CVE-2026-64276}
    - i2c: core: fix adapter deregistration race (Johan Hovold) [Orabug: 39785831] {CVE-2026-64279}
    - KVM: VMX: Grab vmcs12 on CR8 interception update iff vCPU is in guest mode (Sean Christopherson)     [Orabug: 39843616] {CVE-2026-64604}
    - exfat: bound uniname advance in exfat_find_dir_entry() (Bryam Vargas) [Orabug: 39785863]     {CVE-2026-64296}
    - NFSv4: include MAY_WRITE in open permission mask for O_TRUNC (Benjamin Coddington) [Orabug: 39785868]     {CVE-2026-64298}
    - tracing: Prevent out-of-bounds read in glob matching (Huihui Huang) [Orabug: 39785872] {CVE-2026-64299}
    - crypto: drbg - Fix returning success on failure in CTR_DRBG (Eric Biggers) [Orabug: 39785893]     {CVE-2026-64306}
    - crypto: pcrypt - restore callback for non-parallel fallback (Ruijie Li) [Orabug: 39785906]     {CVE-2026-64312}
    - crypto: ecc - Fix carry overflow in vli multiplication (Anastasia Tishchenko) [Orabug: 39785910]     {CVE-2026-64313}
    - isofs: bound Rock Ridge symlink components to the SL record (Bryam Vargas) [Orabug: 39785923]     {CVE-2026-64317}
    - udf: validate sparing table length as an entry count, not a byte count (Bryam Vargas) [Orabug: 39785940]     {CVE-2026-64322}
    - udf: validate VAT header length against the VAT inode size (Bryam Vargas) [Orabug: 39785944]     {CVE-2026-64323}
    - udf: validate free block extents against the partition length (Michael Bommarito) [Orabug: 39785948]     {CVE-2026-64324}
    - usb: typec: tcpm: Validate SVID index in svdm_consume_modes() (Badhri Jagan Sridharan) [Orabug:
    39785963] {CVE-2026-64330}
    - usbip: vudc: fix NULL deref in vep_dequeue() (Sam Day) [Orabug: 39785967] {CVE-2026-64331}
    - USB: ulpi: fix memory leak on registration failure (Johan Hovold) [Orabug: 39785971] {CVE-2026-64332}
    - USB: serial: digi_acceleport: fix write buffer corruption (Johan Hovold) [Orabug: 39785975]     {CVE-2026-64333}
    - USB: serial: digi_acceleport: fix hard lockup on disconnect (Johan Hovold) [Orabug: 39785979]     {CVE-2026-64334}
    - USB: serial: digi_acceleport: fix broken rx after throttle (Johan Hovold) [Orabug: 39785983]     {CVE-2026-64335}
    - USB: serial: keyspan_pda: fix information leak (Johan Hovold) [Orabug: 39785987] {CVE-2026-64336}
    - USB: misc: uss720: unregister parport on probe failure (Myeonghun Pak) [Orabug: 39785994]     {CVE-2026-64338}
    - USB: legousbtower: fix use-after-free on disconnect race (Johan Hovold) [Orabug: 39785999]     {CVE-2026-64340}
    - USB: iowarrior: fix use-after-free on disconnect (Johan Hovold) [Orabug: 39786007] {CVE-2026-64342}
    - USB: ldusb: fix use-after-free on disconnect race (Johan Hovold) [Orabug: 39786012] {CVE-2026-64343}
    - USB: idmouse: fix use-after-free on disconnect race (Johan Hovold) [Orabug: 39786017] {CVE-2026-64344}
    - usb: gadget: udc: Fix use-after-free in gadget_match_driver (Jimmy Hu) [Orabug: 39786026]     {CVE-2026-64346}
    - usb: gadget: composite: fix dead empty check in the USB_DT_OTG handler (Maoyi Xie) [Orabug: 39786030]     {CVE-2026-64347}
    - net: usb: kalmia: bound RX frame length in kalmia_rx_fixup() (Maoyi Xie) [Orabug: 39786042]     {CVE-2026-64351}
    - HID: lg-g15: cancel pending work on remove to fix a use-after-free (Maoyi Xie) [Orabug: 39786071]     {CVE-2026-64362}
    - HID: wacom: stop hardware after post-start probe failures (Myeonghun Pak) [Orabug: 39859299]     {CVE-2026-68091}
    - posix-cpu-timers: Fix pid refcount leak in do_cpu_nanosleep() error path (Xu Wang) [Orabug: 39786091]     {CVE-2026-64370}
    - cpufreq: pcc: fix use-after-free and double free in _OSC evaluation (Yuho Choi) [Orabug: 39786100]     {CVE-2026-64372}
    - cpufreq: Fix hotplug-suspend race during reboot (Tianxiang Chen) [Orabug: 39786104] {CVE-2026-64373}
    - sched/rt: Have RT_PUSH_IPI be default off for non PREEMPT_RT (Steven Rostedt) [Orabug: 39786108]     {CVE-2026-64374}
    - net: Drop the lock in skb_may_tx_timestamp() (Sebastian Andrzej Siewior) [Orabug: 39331701]     {CVE-2026-43216}
    - Bluetooth: L2CAP: validate option length before reading conf opt value (Muhammad Bilal) [Orabug:
    39786205] {CVE-2026-64403}
    - Bluetooth: fix UAF in bt_accept_dequeue() (Yousef Alhouseen) [Orabug: 39786578] {CVE-2026-64406}
    - Bluetooth: bnep: pin L2CAP connection during netdev registration (Yousef Alhouseen) [Orabug: 39786217]     {CVE-2026-64408}
    - netfilter: ebtables: terminate table name before find_table_lock() (Xiang Mei) [Orabug: 39786224]     {CVE-2026-64411}
    - netfilter: ebtables: module names must be null-terminated (Florian Westphal) [Orabug: 39786228]     {CVE-2026-64412}
    - mfd: cros_ec: Delay dev_set_drvdata() until probe success (Andrei Kuchynski) [Orabug: 39786248]     {CVE-2026-64420}
    - net: ipv4: bound TCP reordering sysctl writes and MTU probe sizes (Wyatt Feng) [Orabug: 39786254]     {CVE-2026-64422}
    - ipv4: igmp: remove multicast group from hash table on device destruction (Yuyang Huang) [Orabug:
    39786259] {CVE-2026-64423}
    - io_uring/io-wq: re-check IO_WQ_BIT_EXIT for each linked work item (Runyu Xiao) [Orabug: 39786574]     {CVE-2026-64425}
    - audit: Fix data races of skb_queue_len() readers on audit_queue (Chi Wang) [Orabug: 39786289]     {CVE-2026-64435}
    - net: af_key: initialize alg_key_len for IPComp states (Zijing Yin) [Orabug: 39786293] {CVE-2026-64436}
    - crypto: amlogic - avoid double cleanup in meson_crypto_probe() (Dawei Feng) [Orabug: 39843604]     {CVE-2026-64599}
    - staging: rtl8723bs: fix OOB write in HT_caps_handler() (Alexandru Hossu) [Orabug: 39786303]     {CVE-2026-64440}
    - staging: rtl8723bs: fix OOB reads in is_ap_in_tkip() IE loop (Alexandru Hossu) [Orabug: 39789581]     {CVE-2026-64536}
    - staging: rtl8723bs: fix OOB reads in IE loops in issue_assocreq() and join_cmd_hdl() (Alexandru Hossu)     [Orabug: 39786311] {CVE-2026-64442}
    - staging: rtl8723bs: fix OOB read in update_beacon_info() IE loop (Alexandru Hossu) [Orabug: 39786315]     {CVE-2026-64443}
    - staging: rtl8723bs: fix OOB read in OnAssocRsp() IE loop (Alexandru Hossu) [Orabug: 39786319]     {CVE-2026-64444}
    - staging: rtl8723bs: fix WEP length underflow and OOB read in OnAuth() (Alexandru Hossu) [Orabug:
    39786323] {CVE-2026-64445}
    - tipc: fix out-of-bounds read in broadcast Gap ACK blocks (Samuel Page) [Orabug: 39786340]     {CVE-2026-64450}
    - 6lowpan: fix NHC entry use-after-free on error path (Yizhou Zhao) [Orabug: 39786344] {CVE-2026-64452}
    - usb: dwc3: run gadget disconnect from sleepable suspend context (Runyu Xiao) [Orabug: 39786349]     {CVE-2026-64454}
    - USB: chaoskey: Fix slab-use-after-free in chaoskey_release() (Alan Stern) [Orabug: 39786352]     {CVE-2026-64455}
    - hwrng: virtio: clamp device-reported used.len at copy_data() (Michael Bommarito) [Orabug: 39786356]     {CVE-2026-64456}
    - netfilter: ipset: fix race between dump and ip_set_list resize (Xiang Mei) [Orabug: 39760883]     {CVE-2026-64189}
    - usb: xhci: Fix sleep in atomic context in xhci_free_streams() (Lianqin Hu) [Orabug: 39786379]     {CVE-2026-64465}
    - Bluetooth: btusb: fix use-after-free on marvell probe failure (Johan Hovold) [Orabug: 39786393]     {CVE-2026-64470}
    - Bluetooth: btusb: fix use-after-free on registration failure (Johan Hovold) [Orabug: 39786397]     {CVE-2026-64471}
    - ALSA: usb-audio: avoid kobject path lookup in DualSense match (Darvell Long) [Orabug: 39786416]     {CVE-2026-64478}
    - ALSA: firewire: isight: bound the sample count to the packet payload (Maoyi Xie) [Orabug: 39786428]     {CVE-2026-64483}
    - ALSA: es1938: check snd_ctl_new1() return value (Zhao Dongdong) [Orabug: 39786432] {CVE-2026-64484}
    - ALSA: caiaq: fix out-of-bounds read in the Traktor Kontrol S4 input parser (Maoyi Xie) [Orabug:
    39786439] {CVE-2026-64487}
    - iio: event: Fix event FIFO reset race (Lars-Peter Clausen) [Orabug: 39786462] {CVE-2026-64496}
    - iio: accel: kxsd9: fix runtime PM imbalance on write_raw() error (Biren Pandya) [Orabug: 39786478]     {CVE-2026-64503}
    - iio: accel: bmc150: clamp the device-reported FIFO frame count (Bryam Vargas) [Orabug: 39786482]     {CVE-2026-64504}
    - NFSv4/flexfiles: reject zero filehandle version count (Michael Bommarito) [Orabug: 39753894]     {CVE-2026-53392}
    - fbdev: fbcon: fix out-of-bounds read in err_out of fbcon_do_set_font() (Mingyu Wang) [Orabug: 39753924]     {CVE-2026-53402}
    - i2c: core: fix adapter registration race (Johan Hovold) [Orabug: 39753916] {CVE-2026-53400}
    - block: Avoid mounting the bdev pseudo-filesystem in userspace (Denis Arefev) [Orabug: 39753985]     {CVE-2026-63810}
    - net: ip_gre: require CAP_NET_ADMIN in the device netns for changelink (Maoyi Xie) [Orabug: 39754045]     {CVE-2026-63829}
    - net: skmsg: preserve sg.copy across SG transforms (Yiming Qian) [Orabug: 39754049] {CVE-2026-63830}
    - netfilter: nf_tables: restore set elements when delete set fails (Pablo Neira Ayuso) [Orabug: 36598010]     {CVE-2024-27012}
    - KVM: Replace guest-triggerable BUG_ON() in ioeventfd datamatch with get_unaligned() (Sean     Christopherson) [Orabug: 39753972] {CVE-2026-63806}
    - userfaultfd: gate must_wait writability check on pte_present() (Kiryl Shutsemau) [Orabug: 39786515]     {CVE-2026-64514}
    - nfsd: reset write verifier on deferred writeback errors (Jeff Layton) [Orabug: 39753898]     {CVE-2026-53393}
    - nfsd: release layout stid on setlease failure (Chris Mason) [Orabug: 39753912] {CVE-2026-53399}
    - nvmet-tcp: fix race between ICReq handling and queue teardown (Chaitanya Kulkarni) [Orabug: 39460310]     {CVE-2026-46135}
    - net: tap: set skb->dev before parsing virtio net header in tap_get_user_xdp() (Dongli Zhang) [Orabug:
    39558744] {CVE-2026-74684}
    - net/rds: zero per-item info buffer before handing it to visitors (Michael Bommarito) [Orabug:
    39621715,39638197] {CVE-2026-52995}
    - x86/sev: Evict cache lines during SNP memory validation (Tom Lendacky) [Orabug: 38334919]     {CVE-2025-38560}
    - xfs: resample the data fork mapping after cycling ILOCK (Darrick Wong) [Orabug: 39776791]     {CVE-2026-64600}

Tenable has extracted the preceding description block directly from the Oracle 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.

  - net: remove CAP_SYS_RAWIO zero-padding in dev_validate_header dev_validate_header() reads     dev->hard_header_len directly when zero-padding short link layer headers for CAP_SYS_RAWIO holders: if     (capable(CAP_SYS_RAWIO)) { memset(ll_header + len, 0, dev->hard_header_len - len); return true; } Packet     send paths call dev_validate_header() on skbs whose headroom was allocated from an earlier hard_header_len     read. If the device is reconfigured so that dev->hard_header_len increases before validation, the memset     writes past the reserved buffer, an out-of-bounds write. This out-of-bounds write is masked in some     SOCK_RAW paths today because the same concurrent increase can first make skb_push() exceed the reserved     headroom and trigger skb_under_panic(). Remove the zero-padding branch before making those hard_header_len     reads consistent, so the snapshot fixes do not turn a loud panic into a silent overwrite. This path is     only reached for variable length L2 protocols, where len < hard_header_len but len >= min_header_len. No     remaining in-tree variable length L2 protocol implements header_ops->validate, and the CAP_SYS_RAWIO     bypass that zero-pads and accepts short headers has no real value beyond allowing testing of intentionally     malformed input. Drop the CAP_SYS_RAWIO branch. The remaining reads of dev->hard_header_len in     dev_validate_header() are comparisons only and have no memory safety impact. (CVE-2026-80731)

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

ID	Name	Product	Family	Published	Updated	Severity
342723	Linux Distros 未修补的漏洞：CVE-2026-80731	Nessus	Misc.	9/4/2026	9/5/2026	high
342723	Linux Distros 未修補弱點：CVE-2026-80731	Nessus	Misc.	9/4/2026	9/5/2026	high
342723	Linux Distros のパッチ未適用の脆弱性: CVE-2026-80731	Nessus	Misc.	9/4/2026	9/5/2026	high
343048	Oracle Linux 8 / 9 : Unbreakable Enterprise kernel (ELSA-2026-500249)	Nessus	Oracle Linux Local Security Checks	9/4/2026	9/5/2026	high
342723	Linux Distros Unpatched Vulnerability : CVE-2026-80731	Nessus	Misc.	9/4/2026	9/5/2026	high

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