CVE-2024-39476— Linux kernel 安全漏洞
可能的 ATT&CK 技术 1AI
T1499 · Endpoint Denial of Service影响版本矩阵 28
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | f3d55bd5b7b928ad82f8075d89c908702f3593ab< b32aa95843cac6b12c2c014d40fca18aef24a347 | affected |
1c00bb624cd084e2006520ad0edacaff0fb941c4< 634ba3c97ec413cb10681c7b196db43ee461ecf4 | affected | ||
782b3e71c957991ac8ae53318bc369049d49bb53< aa64464c8f4d2ab92f6d0b959a1e0767b829d787 | affected | ||
9e86dffd0b02594d2e7c60c6db9e889c0395414b< 098d54934814dd876963abfe751c3b1cf7fbe56a | affected | ||
5e2cf333b7bd5d3e62595a44d598a254c697cd74< 3f8d5e802d4cedd445f9a89be8c3fd2d0e99024b | affected | ||
5e2cf333b7bd5d3e62595a44d598a254c697cd74< cd2538e5af495b3c747e503db346470fc1ffc447 | affected | ||
5e2cf333b7bd5d3e62595a44d598a254c697cd74< e332a12f65d8fed8cf63bedb4e9317bb872b9ac7 | affected | ||
5e2cf333b7bd5d3e62595a44d598a254c697cd74< 151f66bb618d1fd0eeb84acb61b4a9fa5d8bb0fa | affected | ||
| … +20 条更多 | |||
获取后续新漏洞提醒登录后订阅
一、 漏洞 CVE-2024-39476 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
查看神龙十问 ↗ 尽管我们使用了先进的大模型技术，但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性，但请您根据实际情况进行核实和判断。
Vulnerability Title
md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: md/raid5: fix deadlock that raid5d() wait for itself to clear MD_SB_CHANGE_PENDING Xiao reported that lvm2 test lvconvert-raid-takeover.sh can hang with small possibility, the root cause is exactly the same as commit bed9e27baf52 ("Revert "md/raid5: Wait for MD_SB_CHANGE_PENDING in raid5d"") However, Dan reported another hang after that, and junxiao investigated the problem and found out that this is caused by plugged bio can't issue from raid5d(). Current implementation in raid5d() has a weird dependence: 1) md_check_recovery() from raid5d() must hold 'reconfig_mutex' to clear MD_SB_CHANGE_PENDING; 2) raid5d() handles IO in a deadloop, until all IO are issued; 3) IO from raid5d() must wait for MD_SB_CHANGE_PENDING to be cleared; This behaviour is introduce before v2.6, and for consequence, if other context hold 'reconfig_mutex', and md_check_recovery() can't update super_block, then raid5d() will waste one cpu 100% by the deadloop, until 'reconfig_mutex' is released. Refer to the implementation from raid1 and raid10, fix this problem by skipping issue IO if MD_SB_CHANGE_PENDING is still set after md_check_recovery(), daemon thread will be woken up when 'reconfig_mutex' is released. Meanwhile, the hang problem will be fixed as well.
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
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。攻击者利用该漏洞可以导致死锁问题。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-39476 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC高级
未找到公开 POC。
登录以生成 AI POC三、漏洞 CVE-2024-39476 的情报信息
请登录查看更多情报信息。
CVE-2024-39476 补丁与修复 (1)
CVE-2024-39476 其他参考 (7)
同批安全公告 · Linux · 2024-07-05 · 共 14 条
| CVE-2024-39485 | Linux kernel 安全漏洞 | |
| CVE-2024-39484 | Linux kernel 安全漏洞 | |
| CVE-2024-39482 | Linux kernel 安全漏洞 | |
| CVE-2024-39483 | Linux kernel 安全漏洞 | |
| CVE-2024-39481 | Linux kernel 安全漏洞 | |
| CVE-2024-39479 | Linux kernel 安全漏洞 | |
| CVE-2024-39480 | Linux kernel 安全漏洞 | |
| CVE-2024-39478 | Linux kernel 安全漏洞 | |
| CVE-2024-39477 | Linux kernel 安全漏洞 | |
| CVE-2024-39475 | Linux kernel 安全漏洞 | |
| CVE-2024-39474 | Linux kernel 安全漏洞 | |
| CVE-2024-39473 | Linux kernel 安全漏洞 | |
| CVE-2024-39472 | Linux kernel 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2024-39476
暂无评论