CentOS Linux 7 [TuxCare] 安全更新：bpftool / kernel / kernel-debug / kernel-debug-devel / kernel-devel / etc 多个漏洞 （CENTOS7：CLSA-2026：1768110920）
high Nessus 插件 ID 362238
语言：
简介
CentOS Linux 主机缺少一个或多个安全更新。描述
CentOS Linux 7 主机上存在安装的程序包，该程序包受到 TuxCare CENTOS7：CLSA-2026：2026：1768110920公告中提及的多个漏洞的影响。- 在用户触发 security_inode_alloc 函数失败并随后调用 nilfs_mdt_destroy 函数的方式中，发现 Linux 内核的 NILFS 文件系统中存在释放后使用缺陷。本地攻击者可利用此缺陷造成系统崩溃，或可能提升其在系统中的权限。(CVE-2022-2978)
- 低于 5.19.17 和 6.0.2 版的 Linux 内核 NFSD 实现容易受到缓冲区溢出的影响。NFSD 通过将远程过程调用 (RPC) 的接收和发送缓冲区合并到一个页面数组中，来跟踪每个 NFSD 线程占用的页面数量。客户端可以通过在消息末尾添加垃圾数据的 TCP 发送 RPC 消息来强制缩小发送缓冲区。系统仍会根据规范正确形成包含垃圾数据的 RPC 消息，并将其传递给处理程序。NFSD 中的漏洞代码未预期超出分配的缓冲区空间的超大请求和写入。CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (CVE-2022-43945)
- 已修复 Linux 内核中的下列漏洞：fs: fix UAF/GPF bug in nilfs_mdt_destroy In alloc_inode, inode_init_always() could return -ENOMEM if security_inode_alloc() fails, which causes inode->i_private uninitialized. Then nilfs_is_metadata_file_inode() returns true and nilfs_free_inode() wrongly calls nilfs_mdt_destroy(), which frees the uninitialized inode->i_private and leads to crashes(e.g., UAF/GPF). Fix this by moving security_inode_alloc just prior to this_cpu_inc(nr_inodes) (CVE-2022-50367)
- 已修复 Linux 内核中的下列漏洞：NFSD: Protect against send buffer overflow in NFSv2 READ Since before the git era, NFSD has conserved the number of pages held by each nfsd thread by combining the RPC receive and send buffers into a single array of pages. This works because there are no cases where an operation needs a large RPC Call message and a large RPC Reply at the same time. Once an RPC Call has been received, svc_process() updates svc_rqst::rq_res to describe the part of rq_pages that can be used for constructing the Reply. This means that the send buffer (rq_res) shrinks when the received RPC record containing the RPC Call is large. A client can force this shrinkage on TCP by sending a correctly- formed RPC Call header contained in an RPC record that is excessively large. The full maximum payload size cannot be constructed in that case. (CVE-2022-50410)
- 已修复 Linux 内核中的下列漏洞：scsi: qla2xxx: Wait for io return on terminate rport System crash due to use after free. Current code allows terminate_rport_io to exit before making sure all IOs has returned. For FCP-2 device, IO's can hang on in HW because driver has not tear down the session in FW at first sign of cable pull. When dev_loss_tmo timer pops, terminate_rport_io is called and upper layer is about to free various resources. Terminate_rport_io trigger qla to do the final cleanup, but the cleanup might not be fast enough where it leave qla still holding on to the same resource. Wait for IO's to return to upper layer before resources are freed. (CVE-2023-53322)
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 CENTOS7：CLSA-2026：1768110920 中的指南更新受影响的程序包。另见
插件详情
严重性: High
ID: 362238
文件名: tuxcare_centos_7_CLSA-2026-1768110920.nasl
版本: 1.1
类型: Local
代理: unix
发布时间: 2026/10/1
最近更新时间: 2026/10/1
支持的传感器: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus
风险信息
VPR
风险因素: High
分数: 7.6
百分位: 98.58
Vendor
Vendor Severity: Important
CVSS v2
风险因素: Medium
基本分数: 6.8
时间分数: 5
矢量: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C
CVSS 分数来源: CVE-2025-39955
CVSS v3
风险因素: High
基本分数: 7.8
时间分数: 6.8
矢量: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
时间矢量: CVSS:3.0/E:U/RL:O/RC:C
漏洞信息
必需的 KB 项: Host/OS/extended-third-party, Host/local_checks_enabled, Host/CentOS/release, Host/CentOS/rpm-list
易利用性: No known exploits are available
补丁发布日期: 2026/1/11
漏洞发布日期: 2021/7/21
参考资料信息
CVE: CVE-2022-2978, CVE-2022-43945, CVE-2022-50367, CVE-2022-50403, CVE-2022-50410, CVE-2023-53322, CVE-2024-35886, CVE-2025-38004, CVE-2025-38051, CVE-2025-38068, CVE-2025-38157, CVE-2025-38245, CVE-2025-38415, CVE-2025-38459, CVE-2025-38729, CVE-2025-39757, CVE-2025-39863, CVE-2025-39955, CVE-2025-40186
CLSA: 2026:1768110920