CVE-2022-49635

一、漏洞信息
 漏洞编号：[CVE-2022-49635](https://nvd.nist.gov/vuln/detail/CVE-2022-49635)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.1.8,6.4.0,6.6.0
 CVSS V3.0分值：
  BaseScore：N/A None
  Vector：CVSS：3.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:drm/i915/selftests: fix subtraction overflow bugOn some machines hole_end can be small enough to cause subtractionoverflow. On the other side (addr + 2 * min_alignment) can overflowin case of mock tests. This patch should handle both cases.(cherry picked from commit ab3edc679c552a466e4bf0b11af3666008bd65a2)
 漏洞公开时间：2025-02-26 15:01
 漏洞创建时间：2025-02-26 18:25:10
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2022-49635
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/333991c4e66b3d4b5613315f18016da80344f659 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/e8997d2d6b8d764e12489f1af2a1ce1d7384ca2a |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-49635 | https://bugzilla.suse.com/show_bug.cgi?id=1238806 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-49635.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1238806 |
| suse_bugzilla | https://git.kernel.org/stable/c/e8997d2d6b8d764e12489f1af2a1ce1d7384ca2a | https://bugzilla.suse.com/show_bug.cgi?id=1238806 |
| suse_bugzilla | https://git.kernel.org/stable/c/333991c4e66b3d4b5613315f18016da80344f659 | https://bugzilla.suse.com/show_bug.cgi?id=1238806 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2347656 | https://bugzilla.suse.com/show_bug.cgi?id=1238806 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2025022617-CVE-2022-49635-af1b@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2347656 |

</details>

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：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
| linux_kernel | 5.18.13 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e8997d2d6b8d764e12489f1af2a1ce1d7384ca2aIssue | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e1c5f754067b594de58d387aa5873dec83b6c9fd | linuxkernelcves |
| linux_kernel | 5.19 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=333991c4e66b3d4b5613315f18016da80344f659Please | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e1c5f754067b594de58d387aa5873dec83b6c9fd | linuxkernelcves |

</details>

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:drm/i915/selftests: fix subtraction overflow bugOn some machines hole_end can be small enough to cause subtractionoverflow. On the other side (addr + 2 * min_alignment) can overflowin case of mock tests. This patch should handle both cases.(cherry picked from commit ab3edc679c552a466e4bf0b11af3666008bd65a2)
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 受影响版本排查(受影响/不受影响)：
  1.openEuler-20.03-LTS-SP4(4.19.90):受影响
2.openEuler-22.03-LTS-SP3:受影响
3.openEuler-22.03-LTS-SP4:受影响
4.master:不受影响
5.openEuler-24.03-LTS:不受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1: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-SP3:否
3.master:否
4.openEuler-24.03-LTS:否
5.openEuler-24.03-LTS-Next:否
6.openEuler-22.03-LTS-SP4:否
7.openEuler-24.03-LTS-SP1:否

原因说明：
  1.openEuler-20.03-LTS-SP4(4.19.90):不修复-超出修复范围
2.openEuler-22.03-LTS-SP3:不修复-超出修复范围
3.openEuler-22.03-LTS-SP4:不修复-超出修复范围
4.master:不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
6.openEuler-24.03-LTS:不受影响-漏洞代码不存在
7.openEuler-24.03-LTS-SP1:不受影响-漏洞代码不存在

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