AlmaLinux 9.2 [TuxCare] 安全性更新：bpftool / kernel / kernel-abi-stablelists / kernel-core / etc 多個弱點 （ALMALINUX9.2：CLSA-2026：1782151303）
high Nessus Plugin ID 361823
語言:
概要
AlmaLinux 主機缺少一或多個安全性更新。說明
AlmaLinux 9.2 主機已安裝的套件會受到 TuxCare ALMALINUX9.2：CLSA-2026：1782151303 公告中提及的多個弱點影響。- 已解決 Linux 核心中的下列弱點：netfilter: ebtables: fix memory leak when blob is malformed The bug fix was incomplete, it replaced crash with a memory leak. The old code had an assignment to ret embedded into the conditional, restore this. (CVE-2022-48641)
- 已解決 Linux 核心中的下列弱點：thermal/int340x_thermal: handle data_vault when the value is ZERO_SIZE_PTR In some case, the GDDV returns a package with a buffer which has zero length. It causes that kmemdup() returns ZERO_SIZE_PTR (0x10). Then the data_vault_read() got NULL point dereference problem when accessing the 0x10 value in data_vault. [ 71.024560] BUG: kernel NULL pointer dereference, address: 0000000000000010 This patch uses ZERO_OR_NULL_PTR() for checking ZERO_SIZE_PTR or NULL value in data_vault. (CVE-2022-48703)
- 已解決 Linux 核心中的下列弱點：ice: switch: fix potential memleak in ice_add_adv_recipe() When ice_add_special_words() fails, the 'rm' is not released, which will lead to a memory leak. Fix this up by going to 'err_unroll' label. Compile tested only. (CVE-2022-48709)
- 已解決 Linux 核心中的下列弱點：xen-netfront: Fix NULL sring after live migration A NAPI is setup for each network sring to poll data to kernel The sring with source host is destroyed before live migration and new sring with target host is setup after live migration. The NAPI for the old sring is not deleted until setup new sring with target host after migration. With busy_poll/busy_read enabled, the NAPI can be polled before got deleted when resume VM. BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: xennet_poll+0xae/0xd20 PGD 0 P4D 0 Oops:
0000 [#1] SMP PTI Call Trace: finish_task_switch+0x71/0x230 timerqueue_del+0x1d/0x40 hrtimer_try_to_cancel+0xb5/0x110 xennet_alloc_rx_buffers+0x2a0/0x2a0 napi_busy_loop+0xdb/0x270 sock_poll+0x87/0x90 do_sys_poll+0x26f/0x580 tracing_map_insert+0x1d4/0x2f0 event_hist_trigger+0x14a/0x260 finish_task_switch+0x71/0x230 __schedule+0x256/0x890 recalc_sigpending+0x1b/0x50 xen_sched_clock+0x15/0x20
__rb_reserve_next+0x12d/0x140 ring_buffer_lock_reserve+0x123/0x3d0 event_triggers_call+0x87/0xb0 trace_event_buffer_commit+0x1c4/0x210 xen_clocksource_get_cycles+0x15/0x20 ktime_get_ts64+0x51/0xf0 SyS_ppoll+0x160/0x1a0 SyS_ppoll+0x160/0x1a0 do_syscall_64+0x73/0x130 entry_SYSCALL_64_after_hwframe+0x41/0xa6 ... RIP: xennet_poll+0xae/0xd20 RSP: ffffb4f041933900 CR2:
0000000000000008 ---[ end trace f8601785b354351c ]--- xen frontend should remove the NAPIs for the old srings before live migration as the bond srings are destroyed There is a tiny window between the srings are set to NULL and the NAPIs are disabled, It is safe as the NAPI threads are still frozen at that time (CVE-2022-48969)
- 已解決 Linux 核心中的下列弱點：cifs: fix small mempool leak in SMB2_negotiate() In some cases of failure (dialect mismatches) in SMB2_negotiate(), after the request is sent, the checks would return -EIO when they should be rather setting rc = -EIO and jumping to neg_exit to free the response buffer from mempool. (CVE-2022-49938)
請注意，Nessus 並未測試這些問題，而是僅依據應用程式自我報告的版本號碼作出判斷。
解決方案
根據 TuxCare 公告 ALMALINUX9.2：CLSA-2026：1782151303 中的指引更新受影響的套件。另請參閱
Plugin 詳細資訊
嚴重性: High
ID: 361823
檔案名稱: tuxcare_alma_linux_9.2_CLSA-2026-1782151303.nasl
版本: 1.2
類型: Local
已發布: 2026/10/1
已更新: 2026/10/2
支援的感應器: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
風險資訊
VPR
風險因素: High
分數: 7.9
百分位數: 99.35
Vendor
Vendor Severity: Important
CVSS v2
風險因素: Medium
基本分數: 6.8
時間性分數: 5.9
媒介: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS 評分資料來源: CVE-2026-31485
CVSS v3
風險因素: High
基本分數: 7.8
時間性分數: 7.5
媒介: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
時間媒介: CVSS:3.0/E:H/RL:O/RC:C
弱點資訊
必要的 KB 項目: Host/OS/extended-third-party, Host/local_checks_enabled, Host/AlmaLinux/release, Host/AlmaLinux/rpm-list, Host/cpu
可被惡意程式利用: true
可輕鬆利用: Exploits are available
修補程式發佈日期: 2026/6/22
弱點發布日期: 2021/7/21
參考資訊
CVE: CVE-2022-48641, CVE-2022-48703, CVE-2022-48709, CVE-2022-48969, CVE-2022-49780, CVE-2022-49787, CVE-2022-49795, CVE-2022-49938, CVE-2022-50110, CVE-2022-50191, CVE-2022-50278, CVE-2022-50330, CVE-2022-50358, CVE-2022-50395, CVE-2022-50466, CVE-2022-50482, CVE-2022-50643, CVE-2022-50677, CVE-2022-50756, CVE-2022-50886, CVE-2023-52467, CVE-2023-52508, CVE-2023-52662, CVE-2023-52706, CVE-2023-52736, CVE-2023-52753, CVE-2023-52806, CVE-2023-52815, CVE-2023-52819, CVE-2023-52984, CVE-2023-53005, CVE-2023-53009, CVE-2023-53044, CVE-2023-53062, CVE-2023-53079, CVE-2023-53091, CVE-2023-53132, CVE-2023-53318, CVE-2023-53340, CVE-2023-53423, CVE-2023-53444, CVE-2023-53501, CVE-2023-53654, CVE-2023-53674, CVE-2023-53708, CVE-2023-53722, CVE-2023-53861, CVE-2023-54052, CVE-2023-54201, CVE-2023-54300, CVE-2024-26679, CVE-2024-27025, CVE-2024-35822, CVE-2024-35930, CVE-2024-35978, CVE-2024-40967, CVE-2024-41005, CVE-2024-41077, CVE-2024-42247, CVE-2024-43871, CVE-2024-43884, CVE-2024-43890, CVE-2024-43894, CVE-2024-43912, CVE-2024-44947, CVE-2024-44954, CVE-2024-44965, CVE-2024-44990, CVE-2024-45025, CVE-2024-46737, CVE-2024-46754, CVE-2024-46807, CVE-2024-46817, CVE-2024-46826, CVE-2024-46855, CVE-2024-47682, CVE-2024-49855, CVE-2024-49899, CVE-2024-49909, CVE-2024-49913, CVE-2024-49923, CVE-2024-49938, CVE-2024-49944, CVE-2024-50008, CVE-2024-50024, CVE-2024-50142, CVE-2024-50237, CVE-2024-50259, CVE-2024-50294, CVE-2024-53144, CVE-2024-53180, CVE-2024-56532, CVE-2024-56590, CVE-2024-56594, CVE-2024-56637, CVE-2024-56681, CVE-2024-56715, CVE-2024-57807, CVE-2024-57973, CVE-2024-58009, CVE-2024-58239, CVE-2025-21636, CVE-2025-21637, CVE-2025-21639, CVE-2025-21724, CVE-2025-21728, CVE-2025-21862, CVE-2025-21909, CVE-2025-21963, CVE-2025-21964, CVE-2025-21971, CVE-2025-37768, CVE-2025-37770, CVE-2025-37841, CVE-2025-38099, CVE-2025-38105, CVE-2025-38248, CVE-2025-38393, CVE-2025-38515, CVE-2025-38671, CVE-2025-38705, CVE-2025-38725, CVE-2025-39902, CVE-2025-39925, CVE-2025-40164, CVE-2025-40259, CVE-2025-68183, CVE-2025-71084, CVE-2026-23071, CVE-2026-23303, CVE-2026-23448, CVE-2026-31416, CVE-2026-31418, CVE-2026-31419, CVE-2026-31485, CVE-2026-31488, CVE-2026-31492, CVE-2026-31496, CVE-2026-31497, CVE-2026-31512, CVE-2026-31586, CVE-2026-31663, CVE-2026-31669, CVE-2026-31694, CVE-2026-31786, CVE-2026-43037, CVE-2026-43116, CVE-2026-43125, CVE-2026-43449, CVE-2026-43451, CVE-2026-46243
CLSA: 2026:1782151303