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。

  - 工作佇列：修正擱置中 pwq 的未綁定集區存留期 KASAN 在 node_activate_pending_pwq（） 中報告未綁定worker_pool的釋放後使用： 錯誤： KASAN：slab-use-after-free
    _raw_spin_trylock+0x6d/0x120 透過任務 kworker/u22：0/318 在 addr ffff8880089ce000 讀取大小 4 CPU：1 UID：
    0 PID：318 通訊：kworker/u22：0 未受 7.2.0 #1 污染 PREEMPT（延遲） 硬體名稱：QEMU 標準 PC （i440FX + PIIX， 1996）， BIOS 1.15.0-1 04/01/2014 工作佇列：0x0 （flush-8：0） 呼叫追蹤： <TASK> dump_stack_lvl+0x53/0x70 print_report+0xce/0x610 kasan_report+0xce/0x100 _raw_spin_trylock+0x6d/0x120 pwq_dec_nr_in_flight+0x4b4/0xcb0 process_one_work+0x921/0x11a0 worker_thread+0x4d0/0xd20 kthread+0x2de/0x3c0 ret_from_fork+0x3aa/0x620 ret_from_fork_asm+0x1a/0x30 </TASK> 由作業 311 分配：
    alloc_pwq+0x439/0xca0 apply_wqattrs_prepare+0x75e/0xd10 apply_workqueue_attrs_locked+0x44/0xa0 wq_nice_store+0x350/0x450 由任務 0 釋放：kfree+0x127/0x3b0 rcu_core+0x523/0x1780 handle_softirqs+0x1b3/0x610 上次可能相關的工作建立：put_unbound_pool+0x3f3/0x7d0 pwq_release_workfn+0x494/0x8e0 kthread_worker_fn+0x1ff/0x790 取消最後一個非活動工作會跳過 pwq_dec_nr_active（）， 因此，當空白 pwq 的 refcnt 達到零時，其 pwq 可以保持在 pending_pwqs 上。
    pwq_release_workfn（） 目前會在移除該 pwq 之前放置集區。如果這會刪除最後一個集區參照，則可以在 pwq 保持可存取的同時釋放集區 RCU 釋放，並且 node_activate_pending_pwq（） 可能會嘗試鎖定釋放的集區>鎖定。在放置水池之前，請從pending_pwqs取下 pwq。（CVE-2026-99103）

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。

  - workqueue：修复待定 pwq 的 unbound 池生存期 KASAN 报告 node_activate_pending_pwq（） 中的 unbound worker_pool释放后使用： 缺陷：KASAN：中的 slab-after-free
    _raw_spin_trylock+0x6d/0x120 任务 kworker/u22：0/318 在地址 ffff8880089ce000 处读取大小为 4 CPU：1 UID：
    0 PID：318 通信：kworker/u22：0 未受 7.2.0 #1 感染 PREEMPT（lazy） 硬件名称：QEMU Standard PC （i440FX + PIIX， 1996）， BIOS 1.15.0-1 04/01/2014 工作队列：0x0 （flush-8：0） 调用跟踪： <TASK> dump_stack_lvl+0x53/0x70 print_report+0xce/0x610 kasan_report+0xce/0x100 _raw_spin_trylock+0x6d/0x120 pwq_dec_nr_in_flight+0x4b4/0xcb0 process_one_work+0x921/0x11a0 worker_thread+0x4d0/0xd20 kthread+0x2de/0x3c0 ret_from_fork+0x3aa/0x620 ret_from_fork_asm+0x1a/0x30 </TASK> 按任务 311 分配：
    alloc_pwq+0x439/0xca0 apply_wqattrs_prepare+0x75e/0xd10 apply_workqueue_attrs_locked+0x44/0xa0 wq_nice_store+0x350/0x450 由任务 0 释放：kfree+0x127/0x3b0 rcu_core+0x523/0x1780 handle_softirqs+0x1b3/0x610 上一次可能相关的工作创建：put_unbound_pool+0x3f3/0x7d0 pwq_release_workfn+0x494/0x8e0 kthread_worker_fn+0x1ff/0x790 取消上一个不活动的工作会跳过 pwq_dec_nr_active（）， 因此，当空 PWQ 的 refcnt 等于零时，可保留在pending_pwqs上。
    pwq_release_workfn（） 目前在删除该 pwq 之前放置池。如果这样丢弃最后一个池引用，则可在 pwq 保持可访问性期间释放池 RCU 且 node_activate_pending_pwq（） 可尝试锁定释放的池>lock。放置池之前，请先从 pending_pwqs 中移除 pwq。（CVE-2026-99103）

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。

  - workqueue:保留中の pwq のバインドされていないプールの寿命を修正します KASAN が、node_activate_pending_pwq() のバインドされていないworker_poolの use-after-free を報告しています: バグ: KASAN:slab-use-after-free
    _raw_spin_trylock+0x6d/0x120 タスク kworker/u22:0/318 による addr ffff8880089ce000 のサイズ 4 の読み取り CPU:1 UID:
    0 PID:318 通信:kworker/u22:0 汚染されていません 7.2.0 #1 PREEMPT(lazy) ハードウェア名:QEMU Standard PC(i440FX + PIIX、1996)、BIOS 1.15.0-1 2014/04/01 Workqueue:0x0(flush-8:0) コールトレース: <TASK> dump_stack_lvl+0x53/0x70 print_report+0xce/0x610 kasan_report+0xce/0x100 _raw_spin_trylock+0x6d/0x120 pwq_dec_nr_in_flight+0x4b4/0xcb0 process_one_work+0x921/0x11a0 worker_thread+0x4d0/0xd20 kthread+0x2de/0x3c0 ret_from_fork+0x3aa/0x620 ret_from_fork_asm+0x1a/0x30 </TASK> タスク 311 によって割り当てられます:
    alloc_pwq+0x439/0xca0 apply_wqattrs_prepare+0x75e/0xd10 apply_workqueue_attrs_locked+0x44/0xa0 wq_nice_store+0x350/0x450 タスク 0 により解放されます: kfree+0x127/0x3b0 rcu_core+0x523/0x1780 handle_softirqs+0x1b3/0x610 最後の潜在的に関連する作業の作成: put_unbound_pool+0x3f3/0x7d0 pwq_release_workfn+0x494/0x8e0 kthread_worker_fn+0x1ff/0x790 最後の非アクティブな作業をキャンセルすると、pwq_dec_nr_active()、 したがって、空の pwq は、その refcnt がゼロになると、pending_pwqs のままになります。
    pwq_release_workfn() は現在、その pwq を削除する前にプールを配置します。これにより最後のプール参照がドロップされる場合、pwq が到達可能なままでプールを RCU 解放することができ、node_activate_pending_pwq() が解放されたプール>ロックを試行する可能性があります。プールを配置する前に、pending_pwqsから pwq を削除してください。(CVE-2026-99103)

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 AlmaLinux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1793866396 advisory.

  - 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: iommufd: Prevent ALIGN() overflow When     allocating IOVA the candidate range gets aligned to the target alignment. If the range is close to     ULONG_MAX then the ALIGN() can wrap resulting in a corrupted iova. Open code the ALIGN() using     get_add_overflow() to prevent this. This simplifies the checks as we don't need to check for length     earlier either. Consolidate the two copies of this code under a single helper. This bug would allow     userspace to create a mapping that overlaps with some other mapping or a reserved range. (CVE-2025-38688)

  - In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix NULL dereference in     ath11k_qmi_m3_load() If ab->fw.m3_data points to data, then fw pointer remains null. Further, if m3_mem is     not allocated, then fw is dereferenced to be passed to ath11k_err function. Replace fw->size by m3_len.
    Found by Linux Verification Center (linuxtesting.org) with SVACE. (CVE-2025-39991)

  - In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-     bounds writes in handle_auth_session_key() The len field originates from untrusted network packets.
    Boundary checks have been added to prevent potential out-of-bounds writes when decrypting the connection     secret or processing service tickets. [ idryomov: changelog ] (CVE-2025-68284)

  - In the Linux kernel, the following vulnerability has been resolved: tipc: fix bc_ackers underflow on     duplicate GRP_ACK_MSG The GRP_ACK_MSG handler in tipc_group_proto_rcv() currently decrements bc_ackers on     every inbound group ACK, even when the same member has already acknowledged the current broadcast round.
    Because bc_ackers is a u16, a duplicate ACK received after the last legitimate ACK wraps the counter to     65535. Once wrapped, tipc_group_bc_cong() keeps reporting congestion and later group broadcasts on the     affected socket stay blocked until the group is recreated. Fix this by ignoring duplicate or stale ACKs     before touching bc_acked or bc_ackers. This makes repeated GRP_ACK_MSG handling idempotent and prevents     the underflow path. (CVE-2026-31662)

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.

  - workqueue: Fix unbound pool lifetime for pending pwqs KASAN reports a use-after-free of an unbound     worker_pool in node_activate_pending_pwq(): BUG: KASAN: slab-use-after-free in
    _raw_spin_trylock+0x6d/0x120 Read of size 4 at addr ffff8880089ce000 by task kworker/u22:0/318 CPU: 1 UID:
    0 PID: 318 Comm: kworker/u22:0 Not tainted 7.2.0 #1 PREEMPT(lazy) Hardware name: QEMU Standard PC (i440FX     + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Workqueue: 0x0 (flush-8:0) Call Trace: <TASK>     dump_stack_lvl+0x53/0x70 print_report+0xce/0x610 kasan_report+0xce/0x100 _raw_spin_trylock+0x6d/0x120     pwq_dec_nr_in_flight+0x4b4/0xcb0 process_one_work+0x921/0x11a0 worker_thread+0x4d0/0xd20     kthread+0x2de/0x3c0 ret_from_fork+0x3aa/0x620 ret_from_fork_asm+0x1a/0x30 </TASK> Allocated by task 311:
    alloc_pwq+0x439/0xca0 apply_wqattrs_prepare+0x75e/0xd10 apply_workqueue_attrs_locked+0x44/0xa0     wq_nice_store+0x350/0x450 Freed by task 0: kfree+0x127/0x3b0 rcu_core+0x523/0x1780     handle_softirqs+0x1b3/0x610 Last potentially related work creation: put_unbound_pool+0x3f3/0x7d0     pwq_release_workfn+0x494/0x8e0 kthread_worker_fn+0x1ff/0x790 Canceling the last inactive work skips     pwq_dec_nr_active(), so an empty pwq can remain on pending_pwqs when its refcnt reaches zero.
    pwq_release_workfn() currently puts the pool before removing that pwq. If this drops the last pool     reference, the pool can be RCU-freed while the pwq remains reachable, and node_activate_pending_pwq() may     trylock the freed pool->lock. Remove the pwq from pending_pwqs before putting the pool. (CVE-2026-99103)

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

The Rocky Linux 9.6 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare ALMALINUX9.6:CLSA-2026:1793866396 advisory.

  - 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: iommufd: Prevent ALIGN() overflow When     allocating IOVA the candidate range gets aligned to the target alignment. If the range is close to     ULONG_MAX then the ALIGN() can wrap resulting in a corrupted iova. Open code the ALIGN() using     get_add_overflow() to prevent this. This simplifies the checks as we don't need to check for length     earlier either. Consolidate the two copies of this code under a single helper. This bug would allow     userspace to create a mapping that overlaps with some other mapping or a reserved range. (CVE-2025-38688)

  - In the Linux kernel, the following vulnerability has been resolved: wifi: ath11k: fix NULL dereference in     ath11k_qmi_m3_load() If ab->fw.m3_data points to data, then fw pointer remains null. Further, if m3_mem is     not allocated, then fw is dereferenced to be passed to ath11k_err function. Replace fw->size by m3_len.
    Found by Linux Verification Center (linuxtesting.org) with SVACE. (CVE-2025-39991)

  - In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-     bounds writes in handle_auth_session_key() The len field originates from untrusted network packets.
    Boundary checks have been added to prevent potential out-of-bounds writes when decrypting the connection     secret or processing service tickets. [ idryomov: changelog ] (CVE-2025-68284)

  - In the Linux kernel, the following vulnerability has been resolved: tipc: fix bc_ackers underflow on     duplicate GRP_ACK_MSG The GRP_ACK_MSG handler in tipc_group_proto_rcv() currently decrements bc_ackers on     every inbound group ACK, even when the same member has already acknowledged the current broadcast round.
    Because bc_ackers is a u16, a duplicate ACK received after the last legitimate ACK wraps the counter to     65535. Once wrapped, tipc_group_bc_cong() keeps reporting congestion and later group broadcasts on the     affected socket stay blocked until the group is recreated. Fix this by ignoring duplicate or stale ACKs     before touching bc_acked or bc_ackers. This makes repeated GRP_ACK_MSG handling idempotent and prevents     the underflow path. (CVE-2026-31662)

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
373282	Linux Distros 未修補弱點：CVE-2026-99103	Nessus	Misc.	2026/10/28	2026/11/7	high
373282	Linux Distros 未修补的漏洞：CVE-2026-99103	Nessus	Misc.	2026/10/28	2026/11/7	high
373282	Linux Distros のパッチ未適用の脆弱性: CVE-2026-99103	Nessus	Misc.	2026/10/28	2026/11/7	high
376433	AlmaLinux 9.6 [TuxCare] Security Update: kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1793866396)	Nessus	Alma Linux Local Security Checks	2026/11/5	2026/11/5	high
373282	Linux Distros Unpatched Vulnerability : CVE-2026-99103	Nessus	Misc.	2026/10/28	2026/11/7	high
376432	Rocky Linux 9.6 [TuxCare] Security Update: kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (ALMALINUX9.6:CLSA-2026:1793866396)	Nessus	Rocky Linux Local Security Checks	2026/11/5	2026/11/5	high

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