CVE-2025-39903

一、漏洞信息
 漏洞编号：[CVE-2025-39903](https://nvd.nist.gov/vuln/detail/CVE-2025-39903)
 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:of_numa: fix uninitialized memory nodes causing kernel panicWhen there are memory-only nodes (nodes without CPUs), these nodes are notproperly initialized, causing kernel panic during boot.of_numa_init	of_numa_parse_cpu_nodes		node_set(nid, numa_nodes_parsed);	of_numa_parse_memory_nodesIn of_numa_parse_cpu_nodes, numa_nodes_parsed gets updated only for nodescontaining CPUs.  Memory-only nodes should have been updated inof_numa_parse_memory_nodes, but they weren t.Subsequently, when free_area_init() attempts to access NODE_DATA() forthese uninitialized memory nodes, the kernel panics due to NULL pointerdereference.This can be reproduced on ARM64 QEMU with 1 CPU and 2 memory nodes:qemu-system-aarch64  -cpu host -nographic  -m 4G -smp 1  -machine virt,accel=kvm,gic-version=3,iommu=smmuv3  -object memory-backend-ram,size=2G,id=mem0  -object memory-backend-ram,size=2G,id=mem1  -numa node,nodeid=0,memdev=mem0  -numa node,nodeid=1,memdev=mem1  -kernel $IMAGE  -hda $DISK  -append  console=ttyAMA0 root=/dev/vda rw earlycon [    0.000000] Booting Linux on physical CPU 0x0000000000 [0x481fd010][    0.000000] Linux version 6.17.0-rc1-00001-gabb4b3daf18c-dirty (yintirui@local) (gcc (GCC) 12.3.1, GNU ld (GNU Binutils) 2.41) #52 SMP PREEMPT Mon Aug 18 09:49:40 CST 2025[    0.000000] KASLR enabled[    0.000000] random: crng init done[    0.000000] Machine model: linux,dummy-virt[    0.000000] efi: UEFI not found.[    0.000000] earlycon: pl11 at MMIO 0x0000000009000000 (options   )[    0.000000] printk: legacy bootconsole [pl11] enabled[    0.000000] OF: reserved mem: Reserved memory: No reserved-memory node in the DT[    0.000000] NODE_DATA(0) allocated [mem 0xbfffd9c0-0xbfffffff][    0.000000] node 1 must be removed before remove section 23[    0.000000] Zone ranges:[    0.000000]   DMA      [mem 0x0000000040000000-0x00000000ffffffff][    0.000000]   DMA32    empty[    0.000000]   Normal   [mem 0x0000000100000000-0x000000013fffffff][    0.000000] Movable zone start for each node[    0.000000] Early memory node ranges[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff][    0.000000]   node   1: [mem 0x00000000c0000000-0x000000013fffffff][    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff][    0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0[    0.000000] Mem abort info:[    0.000000]   ESR = 0x0000000096000004[    0.000000]   EC = 0x25: DABT (current EL), IL = 32 bits[    0.000000]   SET = 0, FnV = 0[    0.000000]   EA = 0, S1PTW = 0[    0.000000]   FSC = 0x04: level 0 translation fault[    0.000000] Data abort info:[    0.000000]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000[    0.000000]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0[    0.000000]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0[    0.000000] [00000000000000a0] user address but active_mm is swapper[    0.000000] Internal error: Oops: 0000000096000004 [#1]  SMP[    0.000000] Modules linked in:[    0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.17.0-rc1-00001-g760c6dabf762-dirty #54 PREEMPT[    0.000000] Hardware name: linux,dummy-virt (DT)[    0.000000] pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)[    0.000000] pc : free_area_init+0x50c/0xf9c[    0.000000] lr : free_area_init+0x5c0/0xf9c[    0.000000] sp : ffffa02ca0f33c00[    0.000000] x29: ffffa02ca0f33cb0 x28: 0000000000000000 x27: 0000000000000000[    0.000000] x26: 4ec4ec4ec4ec4ec5 x25: 00000000000c0000 x24: 00000000000c0000[    0.000000] x23: 0000000000040000 x22: 0000000000000000 x21: ffffa02ca0f3b368[    0.000000] x20: ffffa02ca14c7b98 x19: 0000000000000000 x18: 0000000000000002[    0.000000] x17: 000000000000cacc x16: 0000000000000001 x15: 0000000000000001[    0.000000] x14: 0000000080000000 x13: 0000000000000018 x12: 0000000000000002[    0.0---truncated---
 漏洞公开时间：2025-10-01 16:15:33
 漏洞创建时间：2025-10-01 16:13:14
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2025-39903
<details>
<summary>更多参考(点击展开)</summary>

无
</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://git.kernel.org/stable/c/c2daa6eb4740720b5bd0e06267d7c93a3eed844e |  | ljqc |
| gregkh/linux |  | https://git.kernel.org/stable/c/f3286ad8eeae15fd4bd5c12f9adfe888b26baf62 |  | ljqc |
| gregkh/linux |  | https://git.kernel.org/stable/c/ee4d098cbc9160f573b5c1b5a51d6158efdb2896 |  | ljqc |

</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:of_numa: fix uninitialized memory nodes causing kernel panicWhen there are memory-only nodes (nodes without CPUs), these nodes are notproperly initialized, causing kernel panic during boot.of_numa_initof_numa_parse_cpu_nodesnode_set(nid, numa_nodes_parsed);of_numa_parse_memory_nodesIn of_numa_parse_cpu_nodes, numa_nodes_parsed gets updated only for nodescontaining CPUs.  Memory-only nodes should have been updated inof_numa_parse_memory_nodes, but they weren&#39;t.Subsequently, when free_area_init() attempts to access NODE_DATA() forthese uninitialized memory nodes, the kernel panics due to NULL pointerdereference.This can be reproduced on ARM64 QEMU with 1 CPU and 2 memory nodes:qemu-system-aarch64  -cpu host -nographic  -m 4G -smp 1  -machine virt,accel=kvm,gic-version=3,iommu=smmuv3  -object memory-backend-ram,size=2G,id=mem0  -object memory-backend-ram,size=2G,id=mem1  -numa node,nodeid=0,memdev=mem0  -numa node,nodeid=1,memdev=mem1  -kernel $IMAGE  -hda $DISK  -append &#34;console=ttyAMA0 root=/dev/vda rw earlycon&#34;[    0.000000] Booting Linux on physical CPU 0x0000000000 [0x481fd010][    0.000000] Linux version 6.17.0-rc1-00001-gabb4b3daf18c-dirty (yintirui@local) (gcc (GCC) 12.3.1, GNU ld (GNU Binutils) 2.41) #52 SMP PREEMPT Mon Aug 18 09:49:40 CST 2025[    0.000000] KASLR enabled[    0.000000] random: crng init done[    0.000000] Machine model: linux,dummy-virt[    0.000000] efi: UEFI not found.[    0.000000] earlycon: pl11 at MMIO 0x0000000009000000 (options &#39;&#39;)[    0.000000] printk: legacy bootconsole [pl11] enabled[    0.000000] OF: reserved mem: Reserved memory: No reserved-memory node in the DT[    0.000000] NODE_DATA(0) allocated [mem 0xbfffd9c0-0xbfffffff][    0.000000] node 1 must be removed before remove section 23[    0.000000] Zone ranges:[    0.000000]   DMA      [mem 0x0000000040000000-0x00000000ffffffff][    0.000000]   DMA32    empty[    0.000000]   Normal   [mem 0x0000000100000000-0x000000013fffffff][    0.000000] Movable zone start for each node[    0.000000] Early memory node ranges[    0.000000]   node   0: [mem 0x0000000040000000-0x00000000bfffffff][    0.000000]   node   1: [mem 0x00000000c0000000-0x000000013fffffff][    0.000000] Initmem setup node 0 [mem 0x0000000040000000-0x00000000bfffffff][    0.000000] Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0[    0.000000] Mem abort info:[    0.000000]   ESR = 0x0000000096000004[    0.000000]   EC = 0x25: DABT (current EL), IL = 32 bits[    0.000000]   SET = 0, FnV = 0[    0.000000]   EA = 0, S1PTW = 0[    0.000000]   FSC = 0x04: level 0 translation fault[    0.000000] Data abort info:[    0.000000]   ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000[    0.000000]   CM = 0, WnR = 0, TnD = 0, TagAccess = 0[    0.000000]   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0[    0.000000] [00000000000000a0] user address but active_mm is swapper[    0.000000] Internal error: Oops: 0000000096000004 [#1]  SMP[    0.000000] Modules linked in:[    0.000000] CPU: 0 UID: 0 PID: 0 Comm: swapper Not tainted 6.17.0-rc1-00001-g760c6dabf762-dirty #54 PREEMPT[    0.000000] Hardware name: linux,dummy-virt (DT)[    0.000000] pstate: 800000c5 (Nzcv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)[    0.000000] pc : free_area_init+0x50c/0xf9c[    0.000000] lr : free_area_init+0x5c0/0xf9c[    0.000000] sp : ffffa02ca0f33c00[    0.000000] x29: ffffa02ca0f33cb0 x28: 0000000000000000 x27: 0000000000000000[    0.000000] x26: 4ec4ec4ec4ec4ec5 x25: 00000000000c0000 x24: 00000000000c0000[    0.000000] x23: 0000000000040000 x22: 0000000000000000 x21: ffffa02ca0f3b368[    0.000000] x20: ffffa02ca14c7b98 x19: 0000000000000000 x18: 0000000000000002[    0.000000] x17: 000000000000cacc x16: 0000000000000001 x15: 0000000000000001[    0.000000] x14: 0000000080000000 x13: 0000000000000018 x12: 0000000000000002[    0.000000] x11: ffffa02ca0fd4f00 x10: ffffa02ca14bab20 x9 : ffffa02ca14bab38[    0.000000] x8 : 00000000000c0000 x7 : 0000000000000001 x6 : 0000000000000002[    0.000000] x5 : 0000000140000000 x4 : ffffa02ca0f33c90 x3 : ffffa02ca0f33ca0[    0.000000] x2 : ffffa02ca0f33c98 x1 : 0000000080000000 x0 : 0000000000000001[    0.000000] Call trace:[    0.000000]  free_area_init+0x50c/0xf9c (P)[    0.000000]  bootmem_init+0x110/0x1dc[    0.000000]  setup_arch+0x278/0x60c[    0.000000]  start_kernel+0x70/0x748[    0.000000]  __primary_switched+0x88/0x90[    0.000000] Code: d503201f b98093e0 52800016 f8607a93 (f9405260)[    0.000000] ---[ end trace 0000000000000000 ]---[    0.000000] Kernel panic - not syncing: Attempted to kill the idle task![    0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---The Linux kernel CVE team has assigned CVE-2025-39903 to this issue.
 openEuler评分：
  7.3
 Vector：CVSS：3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
 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:不受影响
6.openEuler-24.03-LTS-Next:不受影响
7.openEuler-24.03-LTS-SP1:不受影响
8.openEuler-24.03-LTS-SP2: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:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-24.03-LTS-SP1:否
8.openEuler-24.03-LTS-SP2: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: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: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
8.openEuler-24.03-LTS-SP2:不受影响-漏洞代码不存在

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