CVE-2022-49621

一、漏洞信息
 漏洞编号：[CVE-2022-49621](https://nvd.nist.gov/vuln/detail/CVE-2022-49621)
 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：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:cpufreq: pmac32-cpufreq: Fix refcount leak bugIn pmac_cpufreq_init_MacRISC3(), we need to add correspondingof_node_put() for the three node pointers whose refcount havebeen incremented by of_find_node_by_name().
 漏洞公开时间：2025-02-26 15:01:37
 漏洞创建时间：2025-02-26 18:09:40
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2022-49621
<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/37c16fc2cb13a13f3c0193bfc6f2edef7d7df7d7 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/3ea9dbf7c2f436952bca331c6f5d72f75aca224e |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/4513018d0bd739097570d26a7760551cba3deb56 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/4585890ab2dbf455d80e254d3d859d4c1e357920 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/4f242486bf46d314b2e3838cc64b56f008a3c4d7 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/57289b6601fe78c09921599b042a0b430fb420ec |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/8dda30f81c751b01cd71f2cfaeef26ad4393b1d1 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/ccd7567d4b6cf187fdfa55f003a9e461ee629e36 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2022-49621 | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2022/CVE-2022-49621.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://git.kernel.org/stable/c/4f242486bf46d314b2e3838cc64b56f008a3c4d7 | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://git.kernel.org/stable/c/37c16fc2cb13a13f3c0193bfc6f2edef7d7df7d7 | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://git.kernel.org/stable/c/4585890ab2dbf455d80e254d3d859d4c1e357920 | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://git.kernel.org/stable/c/8dda30f81c751b01cd71f2cfaeef26ad4393b1d1 | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://git.kernel.org/stable/c/3ea9dbf7c2f436952bca331c6f5d72f75aca224e | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://git.kernel.org/stable/c/57289b6601fe78c09921599b042a0b430fb420ec | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://git.kernel.org/stable/c/4513018d0bd739097570d26a7760551cba3deb56 | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://git.kernel.org/stable/c/ccd7567d4b6cf187fdfa55f003a9e461ee629e36 | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2348274 | https://bugzilla.suse.com/show_bug.cgi?id=1239051 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2025022615-CVE-2022-49621-ac28@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2348274 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2025022615-CVE-2022-49621-ac28@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2348274 |

</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  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/37c16fc2cb13a13f3c0193bfc6f2edef7d7df7d7 |  | nvd |
|  |  | https://git.kernel.org/stable/c/3ea9dbf7c2f436952bca331c6f5d72f75aca224e |  | nvd |
|  |  | https://git.kernel.org/stable/c/4513018d0bd739097570d26a7760551cba3deb56 |  | nvd |
|  |  | https://git.kernel.org/stable/c/4585890ab2dbf455d80e254d3d859d4c1e357920 |  | nvd |
|  |  | https://git.kernel.org/stable/c/4f242486bf46d314b2e3838cc64b56f008a3c4d7 |  | nvd |
|  |  | https://git.kernel.org/stable/c/57289b6601fe78c09921599b042a0b430fb420ec |  | nvd |
|  |  | https://git.kernel.org/stable/c/8dda30f81c751b01cd71f2cfaeef26ad4393b1d1 |  | nvd |
|  |  | https://git.kernel.org/stable/c/ccd7567d4b6cf187fdfa55f003a9e461ee629e36 |  | nvd |
| linux_kernel | 4.9.324 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4f242486bf46d314b2e3838cc64b56f008a3c4d7Fixed |  | linuxkernelcves |
| linux_kernel | 4.14.289 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=37c16fc2cb13a13f3c0193bfc6f2edef7d7df7d7Fixed |  | linuxkernelcves |
| linux_kernel | 4.19.253 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4585890ab2dbf455d80e254d3d859d4c1e357920Fixed |  | linuxkernelcves |
| linux_kernel | 5.4.207 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=8dda30f81c751b01cd71f2cfaeef26ad4393b1d1Fixed |  | linuxkernelcves |
| linux_kernel | 5.10.132 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=3ea9dbf7c2f436952bca331c6f5d72f75aca224eFixed |  | linuxkernelcves |
| linux_kernel | 5.15.56 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=57289b6601fe78c09921599b042a0b430fb420ecFixed |  | linuxkernelcves |
| linux_kernel | 5.18.13 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=4513018d0bd739097570d26a7760551cba3deb56Fixed |  | linuxkernelcves |
| linux_kernel | 5.19 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=ccd7567d4b6cf187fdfa55f003a9e461ee629e36Please |  | 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:cpufreq: pmac32-cpufreq: Fix refcount leak bugIn pmac_cpufreq_init_MacRISC3(), we need to add correspondingof_node_put() for the three node pointers whose refcount havebeen incremented by of_find_node_by_name().
 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:不受影响
3.openEuler-22.03-LTS-SP4:不受影响
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):正常修复
2.master:不受影响-漏洞代码不能被攻击者触发
3.openEuler-24.03-LTS-Next:不受影响-漏洞代码不能被攻击者触发
4.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在
5.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在
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

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1408

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