CVE-2025-37960

一、漏洞信息
 漏洞编号：[CVE-2025-37960](https://nvd.nist.gov/vuln/detail/CVE-2025-37960)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/kernel)
 漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.19,6.4.0,6.6.0
 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:memblock: Accept allocated memory before use in memblock_double_array()When increasing the array size in memblock_double_array() and the slabis not yet available, a call to memblock_find_in_range() is used toreserve/allocate memory. However, the range returned may not have beenaccepted, which can result in a crash when booting an SNP guest:  RIP: 0010:memcpy_orig+0x68/0x130  Code: ...  RSP: 0000:ffffffff9cc03ce8 EFLAGS: 00010006  RAX: ff11001ff83e5000 RBX: 0000000000000000 RCX: fffffffffffff000  RDX: 0000000000000bc0 RSI: ffffffff9dba8860 RDI: ff11001ff83e5c00  RBP: 0000000000002000 R08: 0000000000000000 R09: 0000000000002000  R10: 000000207fffe000 R11: 0000040000000000 R12: ffffffff9d06ef78  R13: ff11001ff83e5000 R14: ffffffff9dba7c60 R15: 0000000000000c00  memblock_double_array+0xff/0x310  memblock_add_range+0x1fb/0x2f0  memblock_reserve+0x4f/0xa0  memblock_alloc_range_nid+0xac/0x130  memblock_alloc_internal+0x53/0xc0  memblock_alloc_try_nid+0x3d/0xa0  swiotlb_init_remap+0x149/0x2f0  mem_init+0xb/0xb0  mm_core_init+0x8f/0x350  start_kernel+0x17e/0x5d0  x86_64_start_reservations+0x14/0x30  x86_64_start_kernel+0x92/0xa0  secondary_startup_64_no_verify+0x194/0x19bMitigate this by calling accept_memory() on the memory range returnedbefore the slab is available.Prior to v6.12, the accept_memory() interface used a  start  and  end parameter instead of  start  and  size , therefore the accept_memory()call must be adjusted to specify  start + size  for  end  when applyingto kernels prior to v6.12.
 漏洞公开时间：2025-05-21 00:15:34
 漏洞创建时间：2025-05-21 01:24:25
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-37960
<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/7bcd29181bab8d508d2adfdbb132de8b1e088698 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/aa513e69e011a2b19fa22ce62ce35effbd5e0c81 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/d66a22f6a432a9dd376c9b365d7dc89bd416909c |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/da8bf5daa5e55a6af2b285ecda460d6454712ff4 |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2025-37960 | https://bugzilla.suse.com/show_bug.cgi?id=1243519 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2025-37960 | https://bugzilla.suse.com/show_bug.cgi?id=1243519 |
| suse_bugzilla | https://git.kernel.org/stable/c/aa513e69e011a2b19fa22ce62ce35effbd5e0c81 | https://bugzilla.suse.com/show_bug.cgi?id=1243519 |
| suse_bugzilla | https://git.kernel.org/stable/c/d66a22f6a432a9dd376c9b365d7dc89bd416909c | https://bugzilla.suse.com/show_bug.cgi?id=1243519 |
| suse_bugzilla | https://git.kernel.org/stable/c/da8bf5daa5e55a6af2b285ecda460d6454712ff4 | https://bugzilla.suse.com/show_bug.cgi?id=1243519 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2025/CVE-2025-37960.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1243519 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2367588 | https://bugzilla.suse.com/show_bug.cgi?id=1243519 |
| suse_bugzilla | https://git.kernel.org/stable/c/7bcd29181bab8d508d2adfdbb132de8b1e088698 | https://bugzilla.suse.com/show_bug.cgi?id=1243519 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2025052004-CVE-2025-37960-97de@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2367588 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2025-37960 |

</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 | 6.12.29 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=d66a22f6a432a9dd376c9b365d7dc89bd416909c | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=dcdfdd40fa82b6704d2841938e5c8ec3051eb0d6 | linuxkernelcves |
| linux_kernel | 6.14.7 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=aa513e69e011a2b19fa22ce62ce35effbd5e0c81 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=dcdfdd40fa82b6704d2841938e5c8ec3051eb0d6 | linuxkernelcves |
| linux_kernel | 6.15-rc6 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=da8bf5daa5e55a6af2b285ecda460d6454712ff4 | https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=dcdfdd40fa82b6704d2841938e5c8ec3051eb0d6 | 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:memblock: Accept allocated memory before use in memblock_double_array()When increasing the array size in memblock_double_array() and the slabis not yet available, a call to memblock_find_in_range() is used toreserve/allocate memory. However, the range returned may not have beenaccepted, which can result in a crash when booting an SNP guest:  RIP: 0010:memcpy_orig+0x68/0x130  Code: ...  RSP: 0000:ffffffff9cc03ce8 EFLAGS: 00010006  RAX: ff11001ff83e5000 RBX: 0000000000000000 RCX: fffffffffffff000  RDX: 0000000000000bc0 RSI: ffffffff9dba8860 RDI: ff11001ff83e5c00  RBP: 0000000000002000 R08: 0000000000000000 R09: 0000000000002000  R10: 000000207fffe000 R11: 0000040000000000 R12: ffffffff9d06ef78  R13: ff11001ff83e5000 R14: ffffffff9dba7c60 R15: 0000000000000c00  memblock_double_array+0xff/0x310  memblock_add_range+0x1fb/0x2f0  memblock_reserve+0x4f/0xa0  memblock_alloc_range_nid+0xac/0x130  memblock_alloc_internal+0x53/0xc0  memblock_alloc_try_nid+0x3d/0xa0  swiotlb_init_remap+0x149/0x2f0  mem_init+0xb/0xb0  mm_core_init+0x8f/0x350  start_kernel+0x17e/0x5d0  x86_64_start_reservations+0x14/0x30  x86_64_start_kernel+0x92/0xa0  secondary_startup_64_no_verify+0x194/0x19bMitigate this by calling accept_memory() on the memory range returnedbefore the slab is available.Prior to v6.12, the accept_memory() interface used a &#39;start&#39; and &#39;end&#39;parameter instead of &#39;start&#39; and &#39;size&#39;, therefore the accept_memory()call must be adjusted to specify &#39;start + size&#39; for &#39;end&#39; when applyingto kernels prior to v6.12.The Linux kernel CVE team has assigned CVE-2025-37960 to this issue.
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
 受影响版本排查(受影响/不受影响)：
  1.openEuler-24.03-LTS(6.6.0):受影响
2.openEuler-24.03-LTS-SP1(6.6.0):受影响
3.openEuler-24.03-LTS-SP2(6.6.0):受影响
4.master(6.12.33):不受影响
5.openEuler-20.03-LTS-SP4(4.19.90):不受影响
6.openEuler-22.03-LTS-SP3:不受影响
7.openEuler-22.03-LTS-SP4:不受影响
8.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
  1.master(6.12.33):否
2.openEuler-20.03-LTS-SP4(4.19.90):否
3.openEuler-22.03-LTS-SP3:否
4.openEuler-22.03-LTS-SP4:否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-24.03-LTS-SP1(6.6.0):否
8.openEuler-24.03-LTS-SP2(6.6.0):否

原因说明：
  1.openEuler-24.03-LTS(6.6.0):正常修复
2.openEuler-24.03-LTS-SP1(6.6.0):正常修复
3.openEuler-24.03-LTS-SP2(6.6.0):正常修复
4.master(6.12.33):不受影响-漏洞代码不能被攻击者触发
5.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
6.openEuler-20.03-LTS-SP4(4.19.90):不受影响-漏洞代码不存在
7.openEuler-22.03-LTS-SP3:不受影响-漏洞代码不存在
8.openEuler-22.03-LTS-SP4:不受影响-漏洞代码不存在

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