CVE-2025-38032

一、漏洞信息
 漏洞编号：[CVE-2025-38032](https://nvd.nist.gov/vuln/detail/CVE-2025-38032)
 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:mr: consolidate the ipmr_can_free_table() checks.Guoyu Yin reported a splat in the ipmr netns cleanup path:WARNING: CPU: 2 PID: 14564 at net/ipv4/ipmr.c:440 ipmr_free_table net/ipv4/ipmr.c:440 [inline]WARNING: CPU: 2 PID: 14564 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x135/0x1c0 net/ipv4/ipmr.c:361Modules linked in:CPU: 2 UID: 0 PID: 14564 Comm: syz.4.838 Not tainted 6.14.0 #1Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014RIP: 0010:ipmr_free_table net/ipv4/ipmr.c:440 [inline]RIP: 0010:ipmr_rules_exit+0x135/0x1c0 net/ipv4/ipmr.c:361Code: ff df 48 c1 ea 03 80 3c 02 00 75 7d 48 c7 83 60 05 00 00 00 00 00 00 5b 5d 41 5c 41 5d 41 5e e9 71 67 7f 00 e8 4c 2d 8a fd 90 <0f> 0b 90 eb 93 e8 41 2d 8a fd 0f b6 2d 80 54 ea 01 31 ff 89 ee e8RSP: 0018:ffff888109547c58 EFLAGS: 00010293RAX: 0000000000000000 RBX: ffff888108c12dc0 RCX: ffffffff83e09868RDX: ffff8881022b3300 RSI: ffffffff83e098d4 RDI: 0000000000000005RBP: ffff888104288000 R08: 0000000000000000 R09: ffffed10211825c9R10: 0000000000000001 R11: ffff88801816c4a0 R12: 0000000000000001R13: ffff888108c13320 R14: ffff888108c12dc0 R15: fffffbfff0b74058FS:  00007f84f39316c0(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 00007f84f3930f98 CR3: 0000000113b56000 CR4: 0000000000350ef0Call Trace: <TASK> ipmr_net_exit_batch+0x50/0x90 net/ipv4/ipmr.c:3160 ops_exit_list+0x10c/0x160 net/core/net_namespace.c:177 setup_net+0x47d/0x8e0 net/core/net_namespace.c:394 copy_net_ns+0x25d/0x410 net/core/net_namespace.c:516 create_new_namespaces+0x3f6/0xaf0 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0xc3/0x180 kernel/nsproxy.c:228 ksys_unshare+0x78d/0x9a0 kernel/fork.c:3342 __do_sys_unshare kernel/fork.c:3413 [inline] __se_sys_unshare kernel/fork.c:3411 [inline] __x64_sys_unshare+0x31/0x40 kernel/fork.c:3411 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa6/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7fRIP: 0033:0x7f84f532cc29Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007f84f3931038 EFLAGS: 00000246 ORIG_RAX: 0000000000000110RAX: ffffffffffffffda RBX: 00007f84f5615fa0 RCX: 00007f84f532cc29RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000400RBP: 00007f84f53fba18 R08: 0000000000000000 R09: 0000000000000000R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000R13: 0000000000000000 R14: 00007f84f5615fa0 R15: 00007fff51c5f328 </TASK>The running kernel has CONFIG_IP_MROUTE_MULTIPLE_TABLES disabled, andthe sanity check for such build is still too loose.Address the issue consolidating the relevant sanity check in a singlehelper regardless of the kernel configuration. Also share it betweenthe ipv4 and ipv6 code.
 漏洞公开时间：2025-06-18 18:15:35
 漏洞创建时间：2025-06-19 11:54:26
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-38032
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
|  | https://git.kernel.org/stable/c/1c518ae98302ab37786d5ba5d43e9ac6d6f894e3 |  |
|  | https://git.kernel.org/stable/c/c46286fdd6aa1d0e33c245bcffe9ff2428a777bd |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2373341 |  |
|  | https://access.redhat.com/security/cve/CVE-2025-38032 |  |
|  | https://www.cve.org/CVERecord?id=CVE-2025-38032 |  |
|  | https://nvd.nist.gov/vuln/detail/CVE-2025-38032 |  |
|  | https://lore.kernel.org/linux-cve-announce/2025061825-CVE-2025-38032-037c@gregkh/T |  |
|  | https://bugzilla.redhat.com/show_bug.cgi?id=2373341 |  |
|  | https://vigilance.fr/vulnerability/Linux-kernel-multiple-vulnerabilities-dated-18-06-2025-47466 |  |

</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:
  七彩瞬析开源风险感知平台
 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  |
| ------- | -------- | ------- | -------- | --------- |
| gregkh/linux |  | https://github.com/gregkh/linux/commit/c46286fdd6aa1d0e33c245bcffe9ff2428a777bd.patch |  | ljqc |
|  |  | https://git.kernel.org/stable/c/1c518ae98302ab37786d5ba5d43e9ac6d6f894e3 |  | nvd |
|  |  | https://git.kernel.org/stable/c/c46286fdd6aa1d0e33c245bcffe9ff2428a777bd |  | nvd |

</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:mr: consolidate the ipmr_can_free_table() checks.Guoyu Yin reported a splat in the ipmr netns cleanup path:WARNING: CPU: 2 PID: 14564 at net/ipv4/ipmr.c:440 ipmr_free_table net/ipv4/ipmr.c:440 [inline]WARNING: CPU: 2 PID: 14564 at net/ipv4/ipmr.c:440 ipmr_rules_exit+0x135/0x1c0 net/ipv4/ipmr.c:361Modules linked in:CPU: 2 UID: 0 PID: 14564 Comm: syz.4.838 Not tainted 6.14.0 #1Hardware name: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996), BIOS 1.16.3-debian-1.16.3-2 04/01/2014RIP: 0010:ipmr_free_table net/ipv4/ipmr.c:440 [inline]RIP: 0010:ipmr_rules_exit+0x135/0x1c0 net/ipv4/ipmr.c:361Code: ff df 48 c1 ea 03 80 3c 02 00 75 7d 48 c7 83 60 05 00 00 00 00 00 00 5b 5d 41 5c 41 5d 41 5e e9 71 67 7f 00 e8 4c 2d 8a fd 90 &lt;0f&gt; 0b 90 eb 93 e8 41 2d 8a fd 0f b6 2d 80 54 ea 01 31 ff 89 ee e8RSP: 0018:ffff888109547c58 EFLAGS: 00010293RAX: 0000000000000000 RBX: ffff888108c12dc0 RCX: ffffffff83e09868RDX: ffff8881022b3300 RSI: ffffffff83e098d4 RDI: 0000000000000005RBP: ffff888104288000 R08: 0000000000000000 R09: ffffed10211825c9R10: 0000000000000001 R11: ffff88801816c4a0 R12: 0000000000000001R13: ffff888108c13320 R14: ffff888108c12dc0 R15: fffffbfff0b74058FS:  00007f84f39316c0(0000) GS:ffff88811b100000(0000) knlGS:0000000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 00007f84f3930f98 CR3: 0000000113b56000 CR4: 0000000000350ef0Call Trace: &lt;TASK&gt; ipmr_net_exit_batch+0x50/0x90 net/ipv4/ipmr.c:3160 ops_exit_list+0x10c/0x160 net/core/net_namespace.c:177 setup_net+0x47d/0x8e0 net/core/net_namespace.c:394 copy_net_ns+0x25d/0x410 net/core/net_namespace.c:516 create_new_namespaces+0x3f6/0xaf0 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0xc3/0x180 kernel/nsproxy.c:228 ksys_unshare+0x78d/0x9a0 kernel/fork.c:3342 __do_sys_unshare kernel/fork.c:3413 [inline] __se_sys_unshare kernel/fork.c:3411 [inline] __x64_sys_unshare+0x31/0x40 kernel/fork.c:3411 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xa6/0x1a0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7fRIP: 0033:0x7f84f532cc29Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 &lt;48&gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48RSP: 002b:00007f84f3931038 EFLAGS: 00000246 ORIG_RAX: 0000000000000110RAX: ffffffffffffffda RBX: 00007f84f5615fa0 RCX: 00007f84f532cc29RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000040000400RBP: 00007f84f53fba18 R08: 0000000000000000 R09: 0000000000000000R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000R13: 0000000000000000 R14: 00007f84f5615fa0 R15: 00007fff51c5f328 &lt;/TASK&gt;The running kernel has CONFIG_IP_MROUTE_MULTIPLE_TABLES disabled, andthe sanity check for such build is still too loose.Address the issue consolidating the relevant sanity check in a singlehelper regardless of the kernel configuration. Also share it betweenthe ipv4 and ipv6 code.The Linux kernel CVE team has assigned CVE-2025-38032 to this issue.
 openEuler评分：
  3.9
 Vector：CVSS：3.0/AV:L/AC:H/PR:H/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.master(6.12.33):不受影响
2.openEuler-20.03-LTS-SP4(4.19.90):不受影响
3.openEuler-22.03-LTS-SP3(5.10.0):不受影响
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响
5.openEuler-24.03-LTS(6.6.0):不受影响
6.openEuler-24.03-LTS-Next(6.6.0):不受影响
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响
8.openEuler-24.03-LTS-SP2(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(5.10.0):否
4.openEuler-22.03-LTS-SP4(5.10.0):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.master(6.12.33):不受影响-漏洞代码不能被攻击者触发
2.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
3.openEuler-20.03-LTS-SP4(4.19.90):不受影响-漏洞代码不存在
4.openEuler-22.03-LTS-SP3(5.10.0):不受影响-漏洞代码不存在
5.openEuler-22.03-LTS-SP4(5.10.0):不受影响-漏洞代码不存在
6.openEuler-24.03-LTS(6.6.0):不受影响-漏洞代码不存在
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响-漏洞代码不存在
8.openEuler-24.03-LTS-SP2(6.6.0):不受影响-漏洞代码不存在

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