CVE-2025-40163 (CNNVD-202511-1443)

UNKNOWN
中文标题:
Linux kernel 安全漏洞
英文标题:
sched/deadline: Stop dl_server before CPU goes offline
CVSS分数: N/A
发布时间: 2025-11-12 10:26:23
漏洞类型: 其他
状态: PUBLISHED
数据质量分数: 0.40
数据版本: v3
漏洞描述
中文描述:

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞,该漏洞源于dl_server在CPU离线前未停止,可能导致内核崩溃。

英文描述:

In the Linux kernel, the following vulnerability has been resolved: sched/deadline: Stop dl_server before CPU goes offline IBM CI tool reported kernel warning[1] when running a CPU removal operation through drmgr[2]. i.e "drmgr -c cpu -r -q 1" WARNING: CPU: 0 PID: 0 at kernel/sched/cpudeadline.c:219 cpudl_set+0x58/0x170 NIP [c0000000002b6ed8] cpudl_set+0x58/0x170 LR [c0000000002b7cb8] dl_server_timer+0x168/0x2a0 Call Trace: [c000000002c2f8c0] init_stack+0x78c0/0x8000 (unreliable) [c0000000002b7cb8] dl_server_timer+0x168/0x2a0 [c00000000034df84] __hrtimer_run_queues+0x1a4/0x390 [c00000000034f624] hrtimer_interrupt+0x124/0x300 [c00000000002a230] timer_interrupt+0x140/0x320 Git bisects to: commit 4ae8d9aa9f9d ("sched/deadline: Fix dl_server getting stuck") This happens since: - dl_server hrtimer gets enqueued close to cpu offline, when kthread_park enqueues a fair task. - CPU goes offline and drmgr removes it from cpu_present_mask. - hrtimer fires and warning is hit. Fix it by stopping the dl_server before CPU is marked dead. [1]: https://lore.kernel.org/all/8218e149-7718-4432-9312-f97297c352b9@linux.ibm.com/ [2]: https://github.com/ibm-power-utilities/powerpc-utils/tree/next/src/drmgr [sshegde: wrote the changelog and tested it]

CWE类型:
(暂无数据)
标签:
(暂无数据)
受影响产品
厂商 产品 版本 版本范围 平台 CPE
Linux Linux - < ab6c0f158508bb16d483add70b73a73f95651c33 - cpe:2.3:a:linux:linux:*:*:*:*:*:*:*:*
Linux Linux 6.17 - - cpe:2.3:a:linux:linux:6.17:*:*:*:*:*:*:*
解决方案
中文解决方案:
(暂无数据)
英文解决方案:
(暂无数据)
临时解决方案:
(暂无数据)
参考链接
无标题 OTHER
cve.org
访问
无标题 OTHER
cve.org
访问
CVSS评分详情
暂无CVSS评分信息
时间信息
发布时间:
2025-11-12 10:26:23
修改时间:
2025-12-01 06:19:15
创建时间:
2026-01-12 02:11:43
更新时间:
2026-02-05 06:00:27
利用信息
暂无可利用代码信息
数据源详情
数据源 记录ID 版本 提取时间
CVE cve_CVE-2025-40163 2025-12-03 03:24:31 2026-01-12 02:11:43
NVD nvd_CVE-2025-40163 2025-11-14 03:00:08 2026-01-12 02:27:46
CNNVD cnnvd_CNNVD-202511-1443 2026-01-15 01:52:30 2026-01-15 01:52:58
版本与语言
当前版本: v3
主要语言: EN
支持语言:
EN ZH
安全公告
暂无安全公告信息
变更历史
v3 CNNVD
2026-01-15 01:52:58
vulnerability_type: 未提取 → 其他; severity: SeverityLevel.MEDIUM → SeverityLevel.UNKNOWN; cvss_score: 未提取 → 0.0; cnnvd_id: 未提取 → CNNVD-202511-1443; data_sources: ['cve', 'nvd'] → ['cnnvd', 'cve', 'nvd']
查看详细变更
  • vulnerability_type: 未提取 -> 其他
  • severity: SeverityLevel.MEDIUM -> SeverityLevel.UNKNOWN
  • cvss_score: 未提取 -> 0.0
  • cnnvd_id: 未提取 -> CNNVD-202511-1443
  • data_sources: ['cve', 'nvd'] -> ['cnnvd', 'cve', 'nvd']
v2 NVD
2026-01-12 02:27:46
affected_products_count: 3 → 2; data_sources: ['cve'] → ['cve', 'nvd']
查看详细变更
  • affected_products_count: 3 -> 2
  • data_sources: ['cve'] -> ['cve', 'nvd']