CVE-2025-38345— Linux kernel 安全漏洞
一分钟漏洞结论
影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ACPICA在操作数缓存中存在内存泄漏。
影响版本矩阵 18
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | 773069d48030e670cf2032a13ddf16a2e0034df3< 4fa430a8bca708c7776f6b9d001257f48b19a5b7 |
affected |
773069d48030e670cf2032a13ddf16a2e0034df3< 1c0d9115a001979cb446ba5e8331dd1d29a10bbf |
affected | ||
773069d48030e670cf2032a13ddf16a2e0034df3< 5a68893b594ee6ce0efce5f74c07e64e9dd0c2c4 |
affected | ||
773069d48030e670cf2032a13ddf16a2e0034df3< 64c4bcf0308dd1d752ef31d560040b8725e29984 |
affected | ||
773069d48030e670cf2032a13ddf16a2e0034df3< 755a8006b76792922ff7b1c9674d8897a476b5d7 |
affected | ||
773069d48030e670cf2032a13ddf16a2e0034df3< 76d37168155880f2b04a0aad92ceb0f9d799950e |
affected | ||
773069d48030e670cf2032a13ddf16a2e0034df3< e0783910ca4368b01466bc8dcdcc13c3e0b7db53 |
affected | ||
773069d48030e670cf2032a13ddf16a2e0034df3< 156fd20a41e776bbf334bd5e45c4f78dfc90ce1c |
affected | ||
| … +10 条更多 | |||
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一、 漏洞 CVE-2025-38345 基础信息
漏洞信息
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Vulnerability Title
ACPICA: fix acpi operand cache leak in dswstate.c
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
ACPICA: fix acpi operand cache leak in dswstate.c
ACPICA commit 987a3b5cf7175916e2a4b6ea5b8e70f830dfe732
I found an ACPI cache leak in ACPI early termination and boot continuing case.
When early termination occurs due to malicious ACPI table, Linux kernel
terminates ACPI function and continues to boot process. While kernel terminates
ACPI function, kmem_cache_destroy() reports Acpi-Operand cache leak.
Boot log of ACPI operand cache leak is as follows:
>[ 0.585957] ACPI: Added _OSI(Module Device)
>[ 0.587218] ACPI: Added _OSI(Processor Device)
>[ 0.588530] ACPI: Added _OSI(3.0 _SCP Extensions)
>[ 0.589790] ACPI: Added _OSI(Processor Aggregator Device)
>[ 0.591534] ACPI Error: Illegal I/O port address/length above 64K: C806E00000004002/0x2 (20170303/hwvalid-155)
>[ 0.594351] ACPI Exception: AE_LIMIT, Unable to initialize fixed events (20170303/evevent-88)
>[ 0.597858] ACPI: Unable to start the ACPI Interpreter
>[ 0.599162] ACPI Error: Could not remove SCI handler (20170303/evmisc-281)
>[ 0.601836] kmem_cache_destroy Acpi-Operand: Slab cache still has objects
>[ 0.603556] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.12.0-rc5 #26
>[ 0.605159] Hardware name: innotek gmb_h virtual_box/virtual_box, BIOS virtual_box 12/01/2006
>[ 0.609177] Call Trace:
>[ 0.610063] ? dump_stack+0x5c/0x81
>[ 0.611118] ? kmem_cache_destroy+0x1aa/0x1c0
>[ 0.612632] ? acpi_sleep_proc_init+0x27/0x27
>[ 0.613906] ? acpi_os_delete_cache+0xa/0x10
>[ 0.617986] ? acpi_ut_delete_caches+0x3f/0x7b
>[ 0.619293] ? acpi_terminate+0xa/0x14
>[ 0.620394] ? acpi_init+0x2af/0x34f
>[ 0.621616] ? __class_create+0x4c/0x80
>[ 0.623412] ? video_setup+0x7f/0x7f
>[ 0.624585] ? acpi_sleep_proc_init+0x27/0x27
>[ 0.625861] ? do_one_initcall+0x4e/0x1a0
>[ 0.627513] ? kernel_init_freeable+0x19e/0x21f
>[ 0.628972] ? rest_init+0x80/0x80
>[ 0.630043] ? kernel_init+0xa/0x100
>[ 0.631084] ? ret_from_fork+0x25/0x30
>[ 0.633343] vgaarb: loaded
>[ 0.635036] EDAC MC: Ver: 3.0.0
>[ 0.638601] PCI: Probing PCI hardware
>[ 0.639833] PCI host bridge to bus 0000:00
>[ 0.641031] pci_bus 0000:00: root bus resource [io 0x0000-0xffff]
> ... Continue to boot and log is omitted ...
I analyzed this memory leak in detail and found acpi_ds_obj_stack_pop_and_
delete() function miscalculated the top of the stack. acpi_ds_obj_stack_push()
function uses walk_state->operand_index for start position of the top, but
acpi_ds_obj_stack_pop_and_delete() function considers index 0 for it.
Therefore, this causes acpi operand memory leak.
This cache leak causes a security threat because an old kernel (<= 4.9) shows
memory locations of kernel functions in stack dump. Some malicious users
could use this information to neutralize kernel ASLR.
I made a patch to fix ACPI operand cache leak.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于ACPICA在操作数缓存中存在内存泄漏。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2025-38345 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2025-38345 补丁与修复 (1)
同批安全公告 · Linux · 2025-07-10 · 共 84 条
| CVE-2025-38325 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-38283 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38290 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38291 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38293 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38292 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38343 | 8.3 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38321 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38303 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38333 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38317 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38306 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38278 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38270 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38273 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38341 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38346 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38276 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38339 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-38287 | 7.5 HIGH | Linux kernel 安全漏洞 |
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IV. Related Vulnerabilities
V. Comments for CVE-2025-38345
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