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一、漏洞信息
漏洞编号：CVE-2024-40956
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
CVSS V2.0分值：
BaseScore：0.0 High
Vector：CVSS：2.0/
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_listUse list_for_each_entry_safe() to allow iterating through the list anddeleting the entry in the iteration process. The descriptor is freed viaidxd_desc_complete() and there s a slight chance may cause issue forthe list iterator when the descriptor is reused by another threadwithout it being deleted from the list.
漏洞公开时间：2024-07-12 21:15:17
漏洞创建时间：2024-07-15 13:35:59
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2024-40956
漏洞分析指导链接：
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
漏洞数据来源:
openBrain开源漏洞感知系统
漏洞补丁信息：
| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源 |
|---|---|---|---|---|
| linux | https://git.kernel.org/linus/e3215deca4520773cd2b155bed164c12365149a7 | https://git.kernel.org/linus/16e19e11228ba660d9e322035635e7dcf160d5c2 | ubuntu |
二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:dmaengine: idxd: Fix possible Use-After-Free in irq_process_work_listUse list_for_each_entry_safe() to allow iterating through the list anddeleting the entry in the iteration process. The descriptor is freed viaidxd_desc_complete() and there's a slight chance may cause issue forthe list iterator when the descriptor is reused by another threadwithout it being deleted from the list.The Linux kernel CVE team has assigned CVE-2024-40956 to this issue.
openEuler评分：
7.0
Vector：CVSS：2.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
受影响版本排查(受影响/不受影响)：
1.openEuler-22.03-LTS-SP1(5.10.0):受影响
2.openEuler-22.03-LTS-SP3(5.10.0):受影响
3.openEuler-22.03-LTS-SP4(5.10.0):受影响
4.openEuler-24.03-LTS(6.6.0):受影响
5.openEuler-20.03-LTS-SP4(4.19.90):不受影响
6.master(6.1.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):不受影响
修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.1.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否
三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-1994
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