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。

  - bpf：修正 sock 複製早期救助中的 UAF 與最近的提交 9b51a6155d14 （bpf，fork： wipe
    ->bpf_storage） 在存取它的救助之前），sk_clone（） 透過 sock_copy（） 對複製的通訊端 newsk 執行通訊端欄位 ->sk_bpf_storage 的初始淺層複製。如果 sk_clone（） 在呼叫 bpf_sk_storage_clone（） 之前提前退出（例如，如果 sk_filter_charge（） 失敗），newsk->sk_bpf_storage 仍指向父通訊端的 BPF 本機儲存。當 newsk 隨後透過 sk_free（） 釋放時，解除分配路徑 （__sk_destruct（） -> bpf_sk_storage_free（）） 會破壞父通訊端的 BPF 本機存儲，從而導致父通訊端上出現釋放後使用 （UAF）。透過在 sk_clone（） 中的 sock_copy（） 之後立即將 newsk->sk_bpf_storage 重設為 NULL 來解決此問題，並從 bpf_sk_storage_clone（） 中移除現在多餘的初始化。（CVE-2026-68399）

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

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。

  - bpf：修复 sock 克隆中的 UAF 及早的 bailouts 与最近的提交 9b51a6155d14 类似（bpf，fork：擦除
    ->bpf_storage 在访问它的 bailout 之前），sk_clone（） 通过 sock_copy（） 对克隆的套接字 newsk 执行套接字字段 ->sk_bpf_storage 的初始浅表复制。如果 sk_clone（） 在调用 bpf_sk_storage_clone（） 之前提早退出（例如，如果 sk_filter_charge（） 失败），newsk->sk_bpf_storage 仍指向父套接字的 BPF 本地存储。随后通过 sk_free（） 释放 newsk 时，解除分配路径 （__sk_destruct（） -> bpf_sk_storage_free（）） 会破坏父套接字的 BPF 本地存储，从而在父套接字上导致释放后使用 （UAF）。通过在 sk_clone（） 中 sock_copy（） 之后立即将 newsk->sk_bpf_storage 重置为空来修复此问题，并从 bpf_sk_storage_clone（） 中删除现在冗余的初始化。（CVE-2026-68399）

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 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。

  - bpf:sock クローン早期救済の UAF を修正します。最近のコミット 9b51a6155d14 に類似しています(bpf、fork:wipe
    ->bpf_storage それにアクセスする救済の前に)、sk_clone() は、クローンされたソケット newsk に対して sock_copy() を介してソケットフィールド ->sk_bpf_storage の最初の浅いコピーを実行します。sk_clone() が bpf_sk_storage_clone() を呼び出す前に早期に(sk_filter_charge() が失敗した場合など)救済する場合、newsk->sk_bpf_storage は依然として親ソケットの BPF ローカルストレージを指し示します。その後、sk_free()を介してnewskが解放されると、割り当て解除パス(__sk_destruct() -> bpf_sk_storage_free())が親ソケットのBPFローカルストレージを破壊するため、親ソケットでメモリ解放後使用(Use After Free)が発生します。sk_clone() の sock_copy() の直後に newsk->sk_bpf_storage を NULL にリセットし、現在冗長になっている初期化を bpf_sk_storage_clone() から削除することで、これを修正します。(CVE-2026-68399)

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 version of kernel installed on the remote host is prior to 5.10.265-265.1078. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2026-130 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    tls: separate no-async decryption request handling from async (CVE-2024-58240)

    In the Linux kernel, the following vulnerability has been resolved:

    xsk: Fix race condition in AF_XDP generic RX path (CVE-2025-37920)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: Fix slab-out-of-bounds access in auth message processing (CVE-2026-46119)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf: Fix ld_{abs,ind} failure path analysis in subprogs (CVE-2026-53090)

    In the Linux kernel, the following vulnerability has been resolved:

    nvmet: fix pre-auth out-of-bounds heap read in Discovery Get Log Page (CVE-2026-64320)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: fix use-after-free of the discoverer in tipc_disc_rcv() (CVE-2026-64543)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: nVMX: Hide shadow VMCS right after VMCLEAR (CVE-2026-64562)

    In the Linux kernel, the following vulnerability has been resolved:

    rhashtable: clear stale iter->p on table restart (CVE-2026-64563)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: don't free the ASCONF's own transport in DEL-IP processing (CVE-2026-64564)

    In the Linux kernel, the following vulnerability has been resolved:

    btrfs: reject free space cache with more entries than pages (CVE-2026-64567)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv4: fib: free fib_alias with kfree_rcu() on insert error path (CVE-2026-64572)

    In the Linux kernel, the following vulnerability has been resolved:

    xfrm: policy: preallocate inexact bins before xfrm_hash_rebuild reinsert (CVE-2026-64579)

    In the Linux kernel, the following vulnerability has been resolved:

    xfrm: fix sk_dst_cache double-free in xfrm_user_policy() (CVE-2026-64581)

    In the Linux kernel, the following vulnerability has been resolved:

    RDMA/rxe: Fix a use-after-free problem in rxe_mmap (CVE-2026-64582)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: clear sock->sk on the failed-insert path in tipc_sk_create() (CVE-2026-68117)

    In the Linux kernel, the following vulnerability has been resolved:

    pppoe: reload header pointer after dev_hard_header() (CVE-2026-68121)

    In the Linux kernel, the following vulnerability has been resolved:

    openvswitch: fix GSO userspace truncation underflow (CVE-2026-68123)

    In the Linux kernel, the following vulnerability has been resolved:

    ila: reload IPv6 header after pskb_may_pull in checksum adjust (CVE-2026-68127)

    In the Linux kernel, the following vulnerability has been resolved:

    rbd: Reset positive result codes to zero in object map update path (CVE-2026-68131)

    In the Linux kernel, the following vulnerability has been resolved:

    net/sched: serialize qdisc_rtab_list against concurrent get/put (CVE-2026-68138)

    In the Linux kernel, the following vulnerability has been resolved:

    geneve: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-68142)

    In the Linux kernel, the following vulnerability has been resolved:

    net: slip: serialize receive against buffer reallocation (CVE-2026-68143)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: remove debugfs files before client teardown (CVE-2026-68153)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: reject zero bucket types in crush_decode (CVE-2026-68154)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: Reject monmaps advertising zero monitors (CVE-2026-68155)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: refresh auth->authorizer_buf{,_len} after authorizer update (CVE-2026-68156)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: guard missing CRUSH type name lookup (CVE-2026-68157)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: Fix multiplication overflow in decode_new_up_state_weight() (CVE-2026-68158)

    In the Linux kernel, the following vulnerability has been resolved:

    ceph: fix pre-auth out-of-bounds read on snaptrace in ceph_handle_caps() (CVE-2026-68160)

    In the Linux kernel, the following vulnerability has been resolved:

    cdrom: fix stack out-of-bounds read in CDROMVOLCTRL (CVE-2026-68184)

    In the Linux kernel, the following vulnerability has been resolved:

    binfmt_misc: set have_execfd only once the interpreter is opened (CVE-2026-68186)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf, sockmap: Fix cork use-after-free in tcp_bpf_sendmsg() (CVE-2026-68284)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: fix u16 MTU truncation in media and bearer MTU validation (CVE-2026-68297)

    In the Linux kernel, the following vulnerability has been resolved:

    vmxnet3: fix BUG_ON in vmxnet3_get_hdr_len() for Geneve packets (CVE-2026-68299)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: auth: verify auth requirement when auth_chunk is NULL (CVE-2026-68300)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: fix infinite loop in __tipc_nl_compat_dumpit (CVE-2026-68313)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: validate stream count in sctp_process_strreset_inreq() (CVE-2026-68315)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: fix auth_chunk_list capacity check in sctp_auth_ep_add_chunkid (CVE-2026-68320)

    In the Linux kernel, the following vulnerability has been resolved:

    rds: Fix inet6_addr_lst NULL dereference when IPv6 is disabled (CVE-2026-68322)

    In the Linux kernel, the following vulnerability has been resolved:

    iommu/amd: Bound the early ACPI HID map (CVE-2026-68325)

    In the Linux kernel, the following vulnerability has been resolved:

    rds: drop incoming messages that cross network namespace boundaries (CVE-2026-68335)

    In the Linux kernel, the following vulnerability has been resolved:

    net/packet: avoid fanout hook re-registration after unregister (CVE-2026-68338)

    In the Linux kernel, the following vulnerability has been resolved:

    USB: serial: io_edgeport: cap received transmit credits (CVE-2026-68365)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: fix auth_hmacs array size in struct sctp_cookie (CVE-2026-68376)

    In the Linux kernel, the following vulnerability has been resolved:

    net/sched: act_tunnel_key: Defer dst_release to RCU callback (CVE-2026-68377)

    In the Linux kernel, the following vulnerability has been resolved:

    smb/client: handle overlapping allocated ranges in fallocate (CVE-2026-68388)

    In the Linux kernel, the following vulnerability has been resolved:

    ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF (CVE-2026-68398)

    In the Linux kernel, the following vulnerability has been resolved:

    bpf: Fix UAF in sock clone early bailouts (CVE-2026-68399)

    In the Linux kernel, the following vulnerability has been resolved:

    IB/mad: Drop unmatched RMPP responses before reassembly (CVE-2026-68425)

    In the Linux kernel, the following vulnerability has been resolved:

    KVM: x86/mmu: Fix use-after-free on vendor module reload (CVE-2026-68428)

    In the Linux kernel, the following vulnerability has been resolved:

    vxlan: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-68432)

    In the Linux kernel, the following vulnerability has been resolved:

    libceph: bound get_version reply decode to front len (CVE-2026-68433)

    In the Linux kernel, the following vulnerability has been resolved:

    x86/bugs: Make Safe-RET robust against interrupt injection (CVE-2026-68480)

    In the Linux kernel, the following vulnerability has been resolved:

    macsec: don't read an unset MAC header in macsec_encrypt() (CVE-2026-72019)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ip6_tunnel: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-72051)

    In the Linux kernel, the following vulnerability has been resolved:

    net: ipip: require CAP_NET_ADMIN in the device netns for changelink (CVE-2026-72053)

    In the Linux kernel, the following vulnerability has been resolved:

    cpu: hotplug: Bound hotplug states sysfs output (CVE-2026-72066)

    In the Linux kernel, the following vulnerability has been resolved:

    can: bcm: add missing device refcount for CAN filter removal (CVE-2026-72113)

    In the Linux kernel, the following vulnerability has been resolved:

    can: bcm: validate frame length in bcm_rx_setup() for RTR replies (CVE-2026-72114)

    In the Linux kernel, the following vulnerability has been resolved:

    can: bcm: track a single source interface for ANYDEV timeout/throttle ops (CVE-2026-72115)

    In the Linux kernel, the following vulnerability has been resolved:

    can: bcm: fix stale rx/tx ops after device removal (CVE-2026-72116)

    In the Linux kernel, the following vulnerability has been resolved:

    can: bcm: fix data race on rx_stamp/rx_ifindex in bcm_rx_handler() (CVE-2026-72117)

    In the Linux kernel, the following vulnerability has been resolved:

    can: bcm: fix CAN frame rx/tx statistics (CVE-2026-72118)

    In the Linux kernel, the following vulnerability has been resolved:

    can: bcm: extend bcm_tx_lock usage for data and timer updates (CVE-2026-72119)

    In the Linux kernel, the following vulnerability has been resolved:

    can: bcm: add locking when updating filter and timer values (CVE-2026-72121)

    In the Linux kernel, the following vulnerability has been resolved:

    can: bcm: defer rx_op deallocation to workqueue to fix thrtimer UAF (CVE-2026-72123)

    In the Linux kernel, the following vulnerability has been resolved:

    ipv6: fib6: fix NULL deref in fib6_walk_continue() on multi-batch dump (CVE-2026-72392)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: reject inverted service ranges from peer bindings (CVE-2026-74281)

    In the Linux kernel, the following vulnerability has been resolved:

    net: openvswitch: fix skb leak on flow key update failure during ct (CVE-2026-74464)

    In the Linux kernel, the following vulnerability has been resolved:

    net: openvswitch: fix potential UAF on meter attach failure (CVE-2026-74465)

    In the Linux kernel, the following vulnerability has been resolved:

    sctp: prevent peer transport count overflow (CVE-2026-74469)

    In the Linux kernel, the following vulnerability has been resolved:

    tracing: Check return value of __register_event() in trace_module_add_events() (CVE-2026-74471)

    In the Linux kernel, the following vulnerability has been resolved:

    vxlan: use pskb_network_may_pull() in route_shortcircuit() (CVE-2026-74473)

    In the Linux kernel, the following vulnerability has been resolved:

    vxlan: use neigh_ha_snapshot() in route_shortcircuit() (CVE-2026-74475)

    In the Linux kernel, the following vulnerability has been resolved:

    net: bridge: stop fast-leave after deleting a port group (CVE-2026-74480)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/page_reporting: use system_freezable_wq to fix UAF during suspend (CVE-2026-74481)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/huge_memory: unlock i_mmap_rwsem before releasing after-split folios (CVE-2026-74482)

    In the Linux kernel, the following vulnerability has been resolved:

    binfmt_misc: reject a flag character as the field delimiter (CVE-2026-74485)

    In the Linux kernel, the following vulnerability has been resolved:

    tipc: avoid use-after-free in poll trace queue dumps (CVE-2026-74490)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: ipset: do not update comments from kernel-side hash adds (CVE-2026-74492)

    In the Linux kernel, the following vulnerability has been resolved:

    igbvf: Fix leak in TX DMA error cleanup (CVE-2026-74495)

    In the Linux kernel, the following vulnerability has been resolved:

    audit: fix potential use-after-free in audit_del_rule() (CVE-2026-74512)

    In the Linux kernel, the following vulnerability has been resolved:

    mm/hugetlb: fix list corruption in allocate_file_region_entries() (CVE-2026-74518)

    In the Linux kernel, the following vulnerability has been resolved:

    pinctrl: devicetree: don't free uninitialized dev_name on error path (CVE-2026-74519)

    In the Linux kernel, the following vulnerability has been resolved:

    qede: sync udp_tunnel ports outside qede_lock in the recovery path (CVE-2026-74523)

    In the Linux kernel, the following vulnerability has been resolved:

    hwmon: (adt7470) Fix busy-loop and I2C flooding in update thread (CVE-2026-74547)

    In the Linux kernel, the following vulnerability has been resolved:

    hwmon: (nct6775-core) Prevent access to unsupported weight registers (CVE-2026-74549)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: libiscsi_tcp: Bound SCSI Response data segment to the connection buffer (CVE-2026-74556)

    In the Linux kernel, the following vulnerability has been resolved:

    scsi: libiscsi: Fix stale-data leak into the SCSI sense buffer (CVE-2026-74557)

    In the Linux kernel, the following vulnerability has been resolved:

    rds: tcp: hold the RCU lock across ipv6_chk_addr() in rds_tcp_laddr_check() (CVE-2026-74563)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: xt_hashlimit: validate hashtable supports XT_HASHLIMIT_RATE_MATCH (CVE-2026-74564)

    In the Linux kernel, the following vulnerability has been resolved:

    keys: make keyring key-chunk byte order agree with keyring_diff_objects() (CVE-2026-74566)

    In the Linux kernel, the following vulnerability has been resolved:

    keys: fix out-of-bounds read in keyring_get_key_chunk() (CVE-2026-74567)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nf_conntrack_sip: widen NAT rewrite delta to s32 in sip_help_tcp() (CVE-2026-74569)

    In the Linux kernel, the following vulnerability has been resolved:

    net: mpls: initialize rtm_tos in mpls_getroute() (CVE-2026-74577)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: nft_payload: fix mask build for partial field offload (CVE-2026-74579)

    In the Linux kernel, the following vulnerability has been resolved:

    vhost: reset the vring metadata cache on vring reconfiguration (CVE-2026-74580)

    In the Linux kernel, the following vulnerability has been resolved:

    netfilter: bridge: release template ct on non-IP path (CVE-2026-74625)

Tenable has extracted the preceding description block directly from the tested product 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.

  - bpf: Fix UAF in sock clone early bailouts Similar to recent commit 9b51a6155d14 (bpf,fork: wipe
    ->bpf_storage before bailouts that access it), sk_clone() performs an initial shallow copy of the socket     field ->sk_bpf_storage via sock_copy() for the cloned socket newsk. If sk_clone() bails out early (e.g. if     sk_filter_charge() fails) prior to calling bpf_sk_storage_clone(), newsk->sk_bpf_storage still points to     the parent socket's BPF local storage. When newsk is subsequently freed via sk_free(), the deallocation     path (__sk_destruct() -> bpf_sk_storage_free()) destroys the parent socket's BPF local storage, leading to     a use-after-free (UAF) on the parent socket. Fix this by resetting newsk->sk_bpf_storage to NULL     immediately after sock_copy() in sk_clone(), and remove the now redundant initialization from     bpf_sk_storage_clone(). (CVE-2026-68399)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
334405	Linux Distros 未修補弱點：CVE-2026-68399	Nessus	Misc.	2026/8/10	2026/8/28	high
334405	Linux Distros 未修补的漏洞：CVE-2026-68399	Nessus	Misc.	2026/8/10	2026/8/28	high
334405	Linux Distros のパッチ未適用の脆弱性: CVE-2026-68399	Nessus	Misc.	2026/8/10	2026/8/28	high
341859	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-130 (ALASKERNEL-5.10-2026-130)	Nessus	Amazon Linux Local Security Checks	2026/8/31	2026/8/31	high
334405	Linux Distros Unpatched Vulnerability : CVE-2026-68399	Nessus	Misc.	2026/8/10	2026/8/28	high

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