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CentOS Linux 6 [TuxCare] 安全更新：kernel / kernel-abi-whitelists / kernel-debug / kernel-debug-devel / etc 多个漏洞 （CENTOS6：CLSA-2026：1792245431）

medium Nessus 插件 ID 369516

语言：

简介

CentOS Linux 主机缺少一个或多个安全更新。

描述

CentOS Linux 6 主机上存在安装的程序包，该程序包受到 TuxCare CENTOS6：CLSA-2026：1792245431公告中提及的多个漏洞的影响。

 - 已修复 Linux 内核中的下列漏洞：virtio_console: eliminate anonymous module_init & module_exit Eliminate anonymous module_init() and module_exit(), which can lead to confusion or ambiguity when reading System.map, crashes/oops/bugs, or an initcall_debug log. Give each of these init and exit functions unique driver-specific names to eliminate the anonymous names. Example 1: (System.map) ffffffff832fc78c t init ffffffff832fc79e t init ffffffff832fc8f8 t init Example 2: (initcall_debug log) calling init+0x0/0x12 @ 1 initcall init+0x0/0x12 returned 0 after 15 usecs calling init+0x0/0x60 @ 1 initcall init+0x0/0x60 returned 0 after 2 usecs calling init+0x0/0x9a @ 1 initcall init+0x0/0x9a returned 0 after 74 usecs (CVE-2022-49100)

 - 已修复 Linux 内核中的下列漏洞：mtd: Fix device name leak when register device failed in add_mtd_device() There is a kmemleak when register device failed: unreferenced object 0xffff888101aab550 (size 8): comm insmod, pid 3922, jiffies 4295277753 (age 925.408s) hex dump (first 8 bytes): 6d 74 64 30 00 88 ff ff mtd0.... backtrace: [<00000000bde26724>]
 __kmalloc_node_track_caller+0x4e/0x150 [<000000003c32b416>] kvasprintf+0xb0/0x130 [<000000001f7a8f15>] kobject_set_name_vargs+0x2f/0xb0 [<000000006e781163>] dev_set_name+0xab/0xe0 [<00000000e30d0c78>] add_mtd_device+0x4bb/0x700 [<00000000f3d34de7>] mtd_device_parse_register+0x2ac/0x3f0 [<00000000c0d88488>] 0xffffffffa0238457 [<00000000b40d0922>] 0xffffffffa02a008f [<0000000023d17b9d>] do_one_initcall+0x87/0x2a0 [<00000000770f6ca6>] do_init_module+0xdf/0x320 [<000000007b6768fe>] load_module+0x2f98/0x3330 [<00000000346bed5a>] __do_sys_finit_module+0x113/0x1b0 [<00000000674c2290>] do_syscall_64+0x35/0x80 [<000000004c6a8d97>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 If register device failed, should call put_device() to give up the reference. (CVE-2022-50566)

 - 已修复 Linux 内核中的下列漏洞：media: dvb-frontends: fix leak of memory fw (CVE-2022-50664)

 - 已修复 Linux 内核中的下列漏洞：acct: fix potential integer overflow in encode_comp_t() The integer overflow is descripted with following codes: > 317 static comp_t encode_comp_t(u64 value) > 318 { > 319 int exp, rnd; ...... > 341 exp <<= MANTSIZE; > 342 exp += value; > 343 return exp; > 344 } Currently comp_t is defined as type of '__u16', but the variable 'exp' is type of 'int', so overflow would happen when variable 'exp' in line 343 is greater than 65535. (CVE-2022-50749)

 - 已修复 Linux 内核中的下列漏洞：ext2: Add sanity checks for group and filesystem size Add sanity check that filesystem size does not exceed the underlying device size and that group size is big enough so that metadata can fit into it. This avoid trying to mount some crafted filesystems with extremely large group counts. (CVE-2022-50815)

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。

解决方案

根据 TuxCare 公告 CENTOS6：CLSA-2026：1792245431 中的指南更新受影响的程序包。

另见

https://cve.tuxcare.com/els/releases/CLSA-2026:1792245431

http://www.nessus.org/u?899ef146

插件详情

严重性: Medium

ID: 369516

文件名: tuxcare_centos_6_CLSA-2026-1792245431.nasl

版本: 1.1

类型: Local

代理: unix

发布时间: 2026/10/21

最近更新时间: 2026/10/21

支持的传感器: Nessus Agent, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

风险信息

VPR

风险因素: High

分数: 8

百分位: 99.7

Vendor

Vendor Severity: Moderate

CVSS v2

风险因素: Medium

基本分数: 6.8

时间分数: 5.3

矢量: CVSS2#AV:N/AC:L/Au:S/C:C/I:N/A:N

CVSS 分数来源: CVE-2024-50076

CVSS v3

风险因素: Medium

基本分数: 6.5

时间分数: 5.9

矢量: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

时间矢量: CVSS:3.0/E:P/RL:O/RC:C

漏洞信息

必需的 KB 项: Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list, Host/OS/extended-third-party

可利用: true

易利用性: Exploits are available

补丁发布日期: 2026/10/17

漏洞发布日期: 2021/7/21

参考资料信息

CVE: CVE-2022-49100, CVE-2022-50566, CVE-2022-50664, CVE-2022-50749, CVE-2022-50815, CVE-2022-50868, CVE-2022-50870, CVE-2023-53839, CVE-2024-50076, CVE-2024-50289, CVE-2026-63957, CVE-2026-80742, CVE-2026-80755, CVE-2026-80757, CVE-2026-80781, CVE-2026-80785, CVE-2026-80793, CVE-2026-80812, CVE-2026-80814, CVE-2026-80819, CVE-2026-80827, CVE-2026-80844, CVE-2026-80875, CVE-2026-80890, CVE-2026-80974, CVE-2026-89462, CVE-2026-89531, CVE-2026-89552, CVE-2026-89666, CVE-2026-98377, CVE-2026-99999

CLSA: 2026:1792245431