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。

  - Drivers： hv：不要在錯誤/結束路徑上重設 VMBus 連線狀態 在兩個地方，目前的程式碼會強制 vmbus_connection.conn_state 在呼叫 vmbus_disconnect（） 之前設為 DISCONNECTED。但 vmbus_disconnect（） 會呼叫 vmbus_initiate_unload（），只有在 conn_state 為 CONNECTED 時，才會卸載 VMBus 連線。
    因此，連線會保持不變，而且 Hyper-V 主機可能會繼續傳送訊息或張貼 VMBus 中斷。此問題是在提交 74347a99e73ae （x86/Hyper-V：在 hv 錯誤回呼中卸載 vmbus 通道） 中引入的，因為 vmbus_initiate_unload（） 在執行卸載之前會開始檢查目前的連線狀態。此提交刪除了一些 conn_state 被迫斷開連接的情況，但這兩個事件仍然存在，顯然是由於當時的疏忽。在 VMBus 結束期間，或者在一開始建立連線時發生故障時，不要強制 conn_state DISCONNECTED，以修正此問題。然後，vmbus_initiate_unload（） 會讀取conn_state當時具有的任何值，以判斷是否有要卸載的連線。（CVE-2026-99216）

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。

  - Drivers：hv：不在错误/退出路径上重置 VMBus 连接状态 在两个位置，当前代码在调用 vmbus_disconnect（） 之前强制 vmbus_connection.conn_state 为 DISCONNECTED。但 vmbus_disconnect（） 会调用 vmbus_initiate_unload（），而后者仅在conn_state为 CONNECTED 时才会卸载 VMBus 连接。
    因此，连接保持不变，Hyper-V 主机可能会继续发送消息或发布 VMBus 中断。提交 74347a99e73ae（x86/Hyper-V：在 hv 错误回调中卸载 vmbus 通道）引入此问题，因为 vmbus_initiate_unload（） 在执行卸载之前会开始检查当前的连接状态。此提交删除了一些 conn_state 被强制处于断开连接状态的情况，但这两者仍然存在，显然是因为当时的疏忽所致。通过在 VMBus 退出期间或在首先建立连接时发生失败时不强制 conn_state 断开连接，从而修复此问题。然后 vmbus_initiate_unload（） 读取conn_state当时具有的任何值，以确定是否存在要卸载的连接。（CVE-2026-99216）

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。

  - ドライバー:hv:エラー/終了パスの VMBus 接続状態をリセットしません。2 か所で、現在のコードは vmbus_connection.conn_state を強制的に DISCONNECTED にしてから vmbus_disconnect() を呼び出します。しかし、vmbus_disconnect()はvmbus_initiate_unload()を呼び出し、conn_stateがCONNECTEDの場合のみVMBus接続をアンロードします。
    その結果、接続は維持され、Hyper-V ホストは引き続きメッセージの送信や VMBus 中断のポストを実行することがあります。この問題は、コミット 74347a99e73ae(x86/Hyper-V:hv パニックコールバックでの vmbus チャネルのアンロード)で導入され、vmbus_initiate_unload() がアンロードを行う前に現在の接続状態のチェックを開始することが原因でした。このコミットにより、conn_stateが強制的に DISCONNECTED にされるいくつかのアカレンスが削除されましたが、この 2 つは当時の見落としがあったためと思われる残りです。VMBus の終了中、または接続の初回確立時に障害が発生した場合に、conn_state を強制的に DISCONNECTED にしないことで、これを修正します。その時点でconn_stateが持つ値がすべてvmbus_initiate_unload()に読み取られ、アンロードする接続があるかどうかが判定されます。(CVE-2026-99216)

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 CentOS Linux 8.4 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare CENTOS8.4:CLSA-2026:1794319150 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: xprtrdma: Repost Receive buffers for     malformed replies rpcrdma_wc_receive() decrements the transport's Receive count for every completion     before it dispatches a successful Receive to rpcrdma_reply_handler(). The handler must post a replacement     Receive WR before returning unless ownership of the rep has moved elsewhere, as on the backchannel path.
    Commit 2ae50ad68cd7 (xprtrdma: Close window between waking RPC senders and posting Receives) moved the     Receive refill out of rpcrdma_wc_receive(), where it had run ahead of every reply, into     rpcrdma_reply_handler() so that the responder's credit grant could be parsed before reposting. The bad-     version and short-reply exits never reach that refill: they recycle the rep and return without calling     rpcrdma_post_recvs(). A remote peer can therefore drain the client's posted Receive queue by sending a     sustained stream of replies that are shorter than the fixed transport header or that carry an unrecognized     RPC/RDMA version. Each such reply consumes one posted Receive without replacing it. Once the queue     empties, the peer's next Send finds no posted Receive and the transport stalls until reconnect. Route both     malformed-reply exits through the shared repost tail after recycling the rep, refilling against     buf->rb_credits, the most recent accepted credit grant. Neither exit updates the congestion window, so     RPCs admitted under the previous grant remain in flight awaiting replies. A smaller refill target would     let a stream of malformed replies ratchet the posted Receive count down to the batch floor while the     congestion window still admits rb_credits RPCs; a burst of valid replies to those RPCs could then overrun     the posted Receives, and because the client connects with rnr_retry_count of zero, a single RNR NAK     terminates the connection. Refilling against rb_credits also restores the target that applied to malformed     replies before commit 2ae50ad68cd7 (xprtrdma: Close window between waking RPC senders and posting     Receives) when rpcrdma_post_recvs() computed it from rb_credits internally. rb_credits is at least one     from connection establishment onward, so the repost path always keeps Receives posted. (CVE-2026-72464)

  - In the Linux kernel, the following vulnerability has been resolved: sctp: check RCV_SHUTDOWN after the     sendmsg connect wait sctp_wait_for_connect() drops the socket lock while it sleeps. An out-of-the-blue     ABORT can then be processed from the socket backlog and unlink the association. If a concurrent     shutdown(fd, SHUT_RD) sets RCV_SHUTDOWN, the waiter breaks with err == 0 before checking asoc->base.dead.
    Its final sctp_association_put() can then free the association, leaving sctp_sendmsg_to_asoc() to continue     with a dangling pointer. Check RCV_SHUTDOWN along with the wait error in sctp_sendmsg_to_asoc() before     using the association again. The check only accesses the socket, so it needs no additional association     reference. Return the existing -ESRCH so that sctp_sendmsg() skips freeing a new association that may     already have been destroyed. Keep sctp_wait_for_connect() unchanged to preserve its behavior for the     connect() caller. (CVE-2026-98846)

  - In the Linux kernel, the following vulnerability has been resolved: tipc: restrict socket queue dumps in     enqueue tracepoints tipc_sk_enqueue() runs with sk->sk_lock.slock held while the socket is owned by user     context. The spinlock protects the backlog queue in this path, but it does not serialize against the     socket owner consuming or purging sk_receive_queue. KASAN reported: CPU: 14 UID: 0 PID: 1050 Comm: tipc3     Not tainted 7.1.0-rc6+ #126 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS     1.15.0-1 04/01/2014 Call Trace: <TASK> dump_stack_lvl+0x76/0xa0 lib/dump_stack.c:123     print_report+0xce/0x5b0 mm/kasan/report.c:482 kasan_report+0xc6/0x100 mm/kasan/report.c:597
    __asan_report_load4_noabort+0x14/0x30 mm/kasan/report_generic.c:380 tipc_skb_dump+0x1327/0x16f0     net/tipc/trace.c:73 tipc_list_dump+0x208/0x2e0 net/tipc/trace.c:187 tipc_sk_dump+0xaf6/0xd60     net/tipc/socket.c:3996 trace_event_raw_event_tipc_sk_class+0x312/0x5a0 net/tipc/trace.h:188     tipc_sk_rcv+0xb1d/0x1d50 net/tipc/socket.c:2497 tipc_node_xmit+0x1c3/0x1440 net/tipc/node.c:1689
    __tipc_sendmsg+0x97a/0x1440 net/tipc/socket.c:1512 tipc_sendmsg+0x52/0x80 net/tipc/socket.c:1400     sock_sendmsg+0x2f6/0x3e0 net/socket.c:825 splice_to_socket+0x7f9/0x1010 fs/splice.c:884     do_splice+0xe21/0x2330 fs/splice.c:936 __do_splice+0x153/0x260 fs/splice.c:1431
    __x64_sys_splice+0x150/0x230 fs/splice.c:1616 x64_sys_call+0xeb5/0x2790 arch/x86/entry/syscall_64.c:41     do_syscall_64+0xf3/0x620 arch/x86/entry/syscall_64.c:63 entry_SYSCALL_64_after_hwframe+0x76/0x7e     arch/x86/entry/entry_64.S:130 RIP: 0033:0x71624e8aafe2 Code: 08 0f 85 71 3a ff ff 49 89 fb 48 89 f0 48 89     d7 48 89 ce 4c 89 c2 4d 89 ca 4c 8b 44 24 08 4c 8b 4c 24 10 4c 89 5c 24 08 0f 05 <c3> 66 2e 0f 1f 84 00 00     00 00 00 66 2e 0f 1f 84 00 00 00 00 00 66 RSP: 002b:0000716157ffed68 EFLAGS: 00000246 ORIG_RAX:
    0000000000000113 RAX: ffffffffffffffda RBX: 0000716157fff6c0 RCX: 000071624e8aafe2 RDX: 000000000000005f     RSI: 0000000000000000 RDI: 0000000000000066 RBP: 0000716157ffed90 R08: 0000000000008000 R09:
    0000000000000001 R10: 0000000000000000 R11: 0000000000000246 R12: ffffffffffffff00 R13: 0000000000000021     R14: 0000000000000000 R15: 00007fff89799c40 </TASK> The TIPC_DUMP_ALL tracepoints in tipc_sk_enqueue()     also dump sk_receive_queue and can therefore dereference skbs that the socket owner has already dequeued     or freed. Restrict these dumps to TIPC_DUMP_SK_BKLGQ, which matches the queue protected by the held     spinlock. Keep the change limited to the enqueue path, where the unsafe queue dump is reachable while the     socket is owned by user context. (CVE-2026-72299)

  - In the Linux kernel, the following vulnerability has been resolved: ceph: bound copied dentry name length     in NFS export get_name ceph_get_name() copies the MDS-supplied name into the caller's NAME_MAX-sized     buffer with memcpy(name, rinfo->dname, rinfo->dname_len) and then writes name[rinfo->dname_len] = 0,     without checking dname_len against NAME_MAX. A malicious or buggy MDS that returns a LOOKUPNAME reply with     dname_len > NAME_MAX overflows the buffer. __get_snap_name() copies rde->name / rde->name_len the same     unchecked way. Impact: a malicious or compromised Ceph MDS overflows the NAME_MAX name buffer in a     client's NFS-export get_name path, a slab out-of-bounds write reported by KASAN. Reachable when a CephFS     mount is re-exported over NFS. Add ceph_export_copy_name(), which rejects lengths above NAME_MAX with
    -ENAMETOOLONG before the copy, and use it in both ceph_get_name() and __get_snap_name(). (CVE-2026-89652)

  - In the Linux kernel, the following vulnerability has been resolved: nfsd: reject out-of-range nseconds in     NFSv3 SETATTR and create ops A client can send an NFSv3 SETATTR, CREATE, MKDIR, SYMLINK or MKNOD carrying     an atime or mtime whose nseconds field is out of range. The value is well-formed on the wire and decodes     cleanly into a valid uint32, but it is not a valid timespec64: tv_nsec must be less than NSEC_PER_SEC.
    Nothing in the setattr path clamps it. notify_change() runs the time through timestamp_truncate(), which     does not reduce tv_nsec below NSEC_PER_SEC when the filesystem supports nanosecond granularity     (s_time_gran == 1), and the inode atime/mtime setters store it verbatim (only ctime is normalized, via     inode_set_ctime_to_ts()). The un-normalized value then corrupts on-disk metadata: ext4's     ext4_encode_extra_time() shifts tv_nsec left by EXT4_EPOCH_BITS, which overflows the 32-bit extra field     and clobbers the seconds-epoch bits, so the stored seconds (and thus the year) are wrong on read-back. XFS     with bigtime mis-stores the timestamp for the same reason. Validate the client-supplied atime/mtime in the     proc handlers and return NFS3ERR_INVAL before anything is changed. RFC 1813 lists NFS3ERR_INVAL for     SETATTR and describes it as the error for a value the server 'can not store ... in its own     representation'; the client maps it to EINVAL. Checking in the proc handlers, rather than in     nfsd_setattr(), keeps the rejection in front of object creation. The create operations create the object     before nfsd_create_setattr() runs, so a late failure would leave the new object behind and turn a non-     idempotent request into a namespace change that reports failure. The check is therefore done up front, for     the create operations before the object is created. tv_nsec is a long, so the comparison casts it to     unsigned long (the same width) rather than to u32, matching timespec64_valid(). A u32 cast would truncate     on 64-bit; the unsigned long cast also rejects a value that became negative when an out-of-range u32 wire     nseconds was assigned to a 32-bit long. Only client-supplied times are checked: SET_TO_SERVER_TIME     requests carry no client value. The sattrguard3 ctime is deliberately left alone: an out-of-range guard     simply never matches the object's ctime and yields NFS3ERR_NOT_SYNC via the existing guardtime comparison,     which is the protocol-correct outcome rather than rejecting the request. (CVE-2026-89666)

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.

  - Drivers: hv: Don't reset VMBus connection state on error/exit paths In two places, current code forces     vmbus_connection.conn_state to DISCONNECTED prior to calling vmbus_disconnect(). But vmbus_disconnect()     calls vmbus_initiate_unload(), which unloads the VMBus connection only if the conn_state is CONNECTED.
    Consequently, the connection remains and the Hyper-V host might continue to send messages or post VMBus     interrupts. The problem was introduced in commit 74347a99e73ae (x86/Hyper-V: Unload vmbus channel in hv     panic callback), in that vmbus_initiate_unload() started checking the current connection state before     doing the unload. This commit removed some occurrences where conn_state was forced to DISCONNECTED, but     these two remained, apparently due to an oversight at the time. Fix this by not forcing conn_state to     DISCONNECTED during VMBus exit, or if a failure occurs when establishing the connection in the first     place. Whatever value conn_state has at the time is then read by vmbus_initiate_unload() to determine if     there is a connection to be unloaded. (CVE-2026-99216)

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

The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.2:CLSA-2026:1793786843 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: soc: qcom: qmi_encdec: Restrict string     length in decode The QMI TLV value for strings in a lot of qmi element info structures account for null     terminated strings with MAX_LEN + 1. If a string is actually MAX_LEN + 1 length, this will cause an out of     bounds access when the NULL character is appended in decoding. (CVE-2023-53729)

  - In the Linux kernel, the following vulnerability has been resolved: rv: Use strings in da monitors     tracepoints Using DA monitors tracepoints with KASAN enabled triggers the following warning: BUG: KASAN:
    global-out-of-bounds in do_trace_event_raw_event_event_da_monitor+0xd6/0x1a0 Read of size 32 at addr     ffffffffaada8980 by task ... Call Trace: <TASK> [...] do_trace_event_raw_event_event_da_monitor+0xd6/0x1a0     ? __pfx_do_trace_event_raw_event_event_da_monitor+0x10/0x10 ? trace_event_sncid+0x83/0x200     trace_event_sncid+0x163/0x200 [...] The buggy address belongs to the variable: automaton_snep+0x4e0/0x5e0     This is caused by the tracepoints reading 32 bytes __array instead of __string from the automata     definition. Such strings are literals and reading 32 bytes ends up in out of bound memory accesses (e.g.
    the next automaton's data in this case). The error is harmless as, while printing the string, we stop at     the null terminator, but it should still be fixed. Use the __string facilities while defining the     tracepoints to avoid reading out of bound memory. (CVE-2025-38636)

  - In the Linux kernel, the following vulnerability has been resolved: perf: arm_spe: Prevent overflow in     PERF_IDX2OFF() Cast nr_pages to unsigned long to avoid overflow when handling large AUX buffer sizes (>= 2     GiB). (CVE-2025-40081)

  - In the Linux kernel, the following vulnerability has been resolved: arch_topology: Fix incorrect error     check in topology_parse_cpu_capacity() Fix incorrect use of PTR_ERR_OR_ZERO() in     topology_parse_cpu_capacity() which causes the code to proceed with NULL clock pointers. The current logic     uses !PTR_ERR_OR_ZERO(cpu_clk) which evaluates to true for both valid pointers and NULL, leading to     potential NULL pointer dereference in clk_get_rate(). Per include/linux/err.h documentation,     PTR_ERR_OR_ZERO(ptr) returns: The error code within @ptr if it is an error pointer; 0 otherwise. This     means PTR_ERR_OR_ZERO() returns 0 for both valid pointers AND NULL pointers. Therefore     !PTR_ERR_OR_ZERO(cpu_clk) evaluates to true (proceed) when cpu_clk is either valid or NULL, causing     clk_get_rate(NULL) to be called when of_clk_get() returns NULL. Replace with !IS_ERR_OR_NULL(cpu_clk)     which only proceeds for valid pointers, preventing potential NULL pointer dereference in clk_get_rate().
    (CVE-2025-40346)

  - In the Linux kernel, the following vulnerability has been resolved: platform/x86/amd/pmc: Add support for     Van Gogh SoC The ROG Xbox Ally (non-X) SoC features a similar architecture to the Steam Deck. While the     Steam Deck supports S3 (s2idle causes a crash), this support was dropped by the Xbox Ally which only S0ix     suspend. Since the handler is missing here, this causes the device to not suspend and the AMD GPU driver     to crash while trying to resume afterwards due to a power hang. (CVE-2025-68334)

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

ID	名前	製品	ファミリー	公開日	更新日	深刻度
373233	Linux Distros 未修補弱點：CVE-2026-99216	Nessus	Misc.	2026/10/28	2026/11/11	high
373233	Linux Distros 未修补的漏洞：CVE-2026-99216	Nessus	Misc.	2026/10/28	2026/11/11	high
373233	Linux Distros のパッチ未適用の脆弱性: CVE-2026-99216	Nessus	Misc.	2026/10/28	2026/11/11	high
378425	CentOS Linux 8.4 [TuxCare] Security Update: bpftool / kernel / kernel-core / kernel-cross-headers / etc Multiple Vulnerabilities (CENTOS8.4:CLSA-2026:1794319150)	Nessus	CentOS Local Security Checks	2026/11/10	2026/11/10	high
373233	Linux Distros Unpatched Vulnerability : CVE-2026-99216	Nessus	Misc.	2026/10/28	2026/11/11	high
376201	AlmaLinux 9.2 [TuxCare] Security Update: bpftool / kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1793786843)	Nessus	Alma Linux Local Security Checks	2026/11/5	2026/11/5	high
379474	SUSE SLES16: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:24662-1)	Nessus	SuSE Local Security Checks	2026/11/12	2026/11/12	high
379497	SUSE SLES16 Security Update : kernel (SUSE-SU-2026:24651-1)	Nessus	SuSE Local Security Checks	2026/11/12	2026/11/12	high

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