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。

  - 在 Linux 内核中，已解决以下漏洞： dmaengine: idxd: Ensure safe user copy of completion record If CONFIG_HARDENED_USERCOPY is enabled, copying completion record from event log cache to user triggers a kernel bug. [ 1987.159822] usercopy: Kernel memory exposure attempt detected from SLUB object 'dsa0' (offset 74, size 31)! [ 1987.170845] ------------[ cut here ]------------ [1987.176086] kernel BUG at mm/usercopy.c:102! [ 1987.180946] invalid opcode: 0000 [#1] PREEMPT SMP NOPTI [1987.186866] CPU: 17 PID: 528 Comm: kworker/17:1 Not tainted 6.8.0-rc2+ #5 [ 1987.194537] Hardware name:
    Intel Corporation AvenueCity/AvenueCity, BIOS BHSDCRB1.86B.2492.D03.2307181620 07/18/2023 [ 1987.206405] Workqueue: wq0.0 idxd_evl_fault_work [idxd] [ 1987.212338] RIP: 0010:usercopy_abort+0x72/0x90 [1987.217381] Code: 58 65 9c 50 48 c7 c2 17 85 61 9c 57 48 c7 c7 98 fd 6b 9c 48 0f 44 d6 48 c7 c6 b3 08 62 9c 4c 89 d1 49 0f 44 f3 e8 1e 2e d5 ff <0f> 0b 49 c7 c1 9e 42 61 9c 4c 89 cf 4d 89 c8 eb a9 66 66 2e 0f 1f [ 1987.238505] RSP: 0018:ff62f5cf20607d60 EFLAGS: 00010246 [ 1987.244423] RAX: 000000000000005f RBX:
    000000000000001f RCX: 0000000000000000 [ 1987.252480] RDX: 0000000000000000 RSI: ffffffff9c61429e RDI:
    00000000ffffffff [ 1987.260538] RBP: ff62f5cf20607d78 R08: ff2a6a89ef3fffe8 R09: 00000000fffeffff [1987.268595] R10: ff2a6a89eed00000 R11: 0000000000000003 R12: ff2a66934849c89a [ 1987.276652] R13:
    0000000000000001 R14: ff2a66934849c8b9 R15: ff2a66934849c899 [ 1987.284710] FS: 0000000000000000(0000) GS:ff2a66b22fe40000(0000) knlGS:0000000000000000 [ 1987.293850] CS: 0010 DS: 0000 ES: 0000 CR0:
    0000000080050033 [ 1987.300355] CR2: 00007fe291a37000 CR3: 000000010fbd4005 CR4: 0000000000f71ef0 [1987.308413] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1987.316470] DR3:
    0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400 [ 1987.324527] PKRU: 55555554 [ 1987.327622] Call Trace: [ 1987.330424] <TASK> [ 1987.332826] ? show_regs+0x6e/0x80 [ 1987.336703] ? die+0x3c/0xa0 [1987.339988] ? do_trap+0xd4/0xf0 [ 1987.343662] ? do_error_trap+0x75/0xa0 [ 1987.347922] ? usercopy_abort+0x72/0x90 [ 1987.352277] ? exc_invalid_op+0x57/0x80 [ 1987.356634] ? usercopy_abort+0x72/0x90 [ 1987.360988] ? asm_exc_invalid_op+0x1f/0x30 [ 1987.365734] ? usercopy_abort+0x72/0x90 [ 1987.370088] __check_heap_object+0xb7/0xd0 [ 1987.374739]
    __check_object_size+0x175/0x2d0 [ 1987.379588] idxd_copy_cr+0xa9/0x130 [idxd] [ 1987.384341] idxd_evl_fault_work+0x127/0x390 [idxd] [ 1987.389878] process_one_work+0x13e/0x300 [ 1987.394435] ?
    __pfx_worker_thread+0x10/0x10 [ 1987.399284] worker_thread+0x2f7/0x420 [ 1987.403544] ?
    _raw_spin_unlock_irqrestore+0x2b/0x50 [ 1987.409171] ? __pfx_worker_thread+0x10/0x10 [ 1987.414019] kthread+0x107/0x140 [ 1987.417693] ? __pfx_kthread+0x10/0x10 [ 1987.421954] ret_from_fork+0x3d/0x60 [1987.426019] ? __pfx_kthread+0x10/0x10 [ 1987.430281] ret_from_fork_asm+0x1b/0x30 [ 1987.434744] </TASK> The issue arises because event log cache is created using kmem_cache_create() which is not suitable for user copy. Fix the issue by creating event log cache with kmem_cache_create_usercopy(), ensuring safe user copy. (CVE-2024-26746)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

远程 Oracle Linux 9 主机上安装的程序包受到 ELSA-2024-9315 公告中提及的多个漏洞影响。

    - memcg：保护对 mem_cgroup_idr 的并发访问 (Rafael Aquini) [RHEL-56254] {CVE-2024-43892}
    - bnxt_en：修复 XDP_REDIRECT 的双重 DMA 取消映射 (Michal Schmidt) [RHEL-57259] {CVE-2024-44984}
    - dma：修复 dmam_free_coherent 中的调用顺序 (Eder Zulian) [RHEL-54751] {CVE-2024-43856}
    - dmaengine：idxd： 避免不必要的 file_ida 破坏 (Jerry Snitselaar) [RHEL-44508] {CVE-2024-38629}
    - tipc：发生错误时从 tipc_udp_addr2str() 返回非零值 (Xin Long) [RHEL-55074] {CVE-2024-42284}
    - net/mlx5e：SHAMPO，修复无效的 WQ 链接列表取消链接 (Michal Schmidt) [RHEL-57119] {CVE-2024-44970}
    - net/mlx5e： 修复修改标头上下文的 CT 条目更新泄漏 (Michal Schmidt) [RHEL-55628] {CVE-2024-43864}
    - net/mlx5：始终耗尽关闭回调中的运行状况 (Michal Schmidt) [RHEL-55616] {CVE-2024-43866}
    net/mlx5：修复同步重置重新加载时缺少的锁定 (Michal Schmidt) [RHEL-55121] {CVE-2024-42268}
    - ionic：修复 XDP_TX 操作中的内核错误 (CKI Backport Bot) [RHEL-47730] {CVE-2024-40907}
    - r8169：修复拆分后的 Tx 数据包上可能存在的环形缓冲区损坏。(Izabela Bakollari) [RHEL-44037] {CVE-2024-38586}
    - KVM: s390：修复关闭 gisa 时的有效性拦截问题 (CKI Backport Bot) [RHEL-57197] {CVE-2024-45005}
    - wifi：cfg80211：处理 cfg80211_calculate_bitrate_he() 中的 2x996 RU 分配 (Jose Ignacio Tornos Martinez) [RHEL-55579] {CVE-2024-43879}
    - wifi: mac80211：修复启动 tx ba 会话中 band 检查时的空取消引用 (Jose Ignacio Tornos Martinez) [RHEL-56191] {CVE-2024-43911}
    - wifi：rtw89：修复 rtw89_sta_info_get_iter() 中的数组索引错误 (Jose Ignacio Tornos Martinez) [RHEL-54805] {CVE-2024-43842}
    - gfs2：修复 gfs2_log_flush 中的空指针取消引用 (Andrew Price) [RHEL-51559] {CVE-2024-42079}
    - x86/mm：修复 pti_clone_pgtable() 对齐假设 (Rafael Aquini) [RHEL-57170] {CVE-2024-44965}
    - bnxt_en：调整对 __hwrm_send() 中已发布标记的固件消息的记录 (CKI Backport Bot) [RHEL-47822] {CVE-2024-40919}
    - netfilter：tproxy：如果设备上禁用了 IP，则应退出操作 (Phil Sutter) [RHEL-44369] {CVE-2024-36270}

Tenable 已直接从 Oracle Linux 安全公告中提取上述描述块。

请注意，Nessus 尚未测试这些问题，而是只依据应用程序自我报告的版本号进行判断。

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
227547	Linux Distros 未修补的漏洞: CVE-2024-26746	Nessus	Misc.	2025/3/5	2025/8/11	medium
211575	Oracle Linux 9：内核 (ELSA-2024-9315)	Nessus	Oracle Linux Local Security Checks	2024/11/19	2024/11/19	high
210815	RHEL 9：kernel (RHSA-2024:9315)	Nessus	Red Hat Local Security Checks	2024/11/12	2025/8/15	high

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