CVE-2023-53532— 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，该漏洞源于固件资源反初始化不当，可能导致空指针取消引用。
可能的 ATT&CK 技术 1 AI
T1499 · Endpoint Denial of Service影响版本矩阵 10
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Linux | Linux | f9eec4947add999e1251bf14365a48a655b786a4< 0324300dce3412d4737b4ec5898d0188495a7caa |
affected |
f9eec4947add999e1251bf14365a48a655b786a4< 8faf862d81ab197757761e87d0a99fbb96ab2cf0 |
affected | ||
f9eec4947add999e1251bf14365a48a655b786a4< a1548363582a8066edd4986f839d785f13dda3aa |
affected | ||
f9eec4947add999e1251bf14365a48a655b786a4< 5a78ac33e3cb8822da64dd1af196e83664b332b0 |
affected | ||
5.19 |
affected | ||
< 5.19 |
unaffected | ||
6.1.28≤ 6.1.* |
unaffected | ||
6.2.15≤ 6.2.* |
unaffected | ||
| … +2 条更多 | |||
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一、 漏洞 CVE-2023-53532 基础信息
漏洞信息
对漏洞内容有疑问？看看神龙的深度分析是否有帮助！
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Vulnerability Title
wifi: ath11k: fix deinitialization of firmware resources
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
wifi: ath11k: fix deinitialization of firmware resources
Currently, in ath11k_ahb_fw_resources_init(), iommu domain
mapping is done only for the chipsets having fixed firmware
memory. Also, for such chipsets, mapping is done only if it
does not have TrustZone support.
During deinitialization, only if TrustZone support is not there,
iommu is unmapped back. However, for non fixed firmware memory
chipsets, TrustZone support is not there and this makes the
condition check to true and it tries to unmap the memory which
was not mapped during initialization.
This leads to the following trace -
[ 83.198790] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
[ 83.259537] Modules linked in: ath11k_ahb ath11k qmi_helpers
.. snip ..
[ 83.280286] pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 83.287228] pc : __iommu_unmap+0x30/0x140
[ 83.293907] lr : iommu_unmap+0x5c/0xa4
[ 83.298072] sp : ffff80000b3abad0
.. snip ..
[ 83.369175] Call trace:
[ 83.376282] __iommu_unmap+0x30/0x140
[ 83.378541] iommu_unmap+0x5c/0xa4
[ 83.382360] ath11k_ahb_fw_resource_deinit.part.12+0x2c/0xac [ath11k_ahb]
[ 83.385666] ath11k_ahb_free_resources+0x140/0x17c [ath11k_ahb]
[ 83.392521] ath11k_ahb_shutdown+0x34/0x40 [ath11k_ahb]
[ 83.398248] platform_shutdown+0x20/0x2c
[ 83.403455] device_shutdown+0x16c/0x1c4
[ 83.407621] kernel_restart_prepare+0x34/0x3c
[ 83.411529] kernel_restart+0x14/0x74
[ 83.415781] __do_sys_reboot+0x1c4/0x22c
[ 83.419427] __arm64_sys_reboot+0x1c/0x24
[ 83.423420] invoke_syscall+0x44/0xfc
[ 83.427326] el0_svc_common.constprop.3+0xac/0xe8
[ 83.430974] do_el0_svc+0xa0/0xa8
[ 83.435659] el0_svc+0x1c/0x44
[ 83.438957] el0t_64_sync_handler+0x60/0x144
[ 83.441910] el0t_64_sync+0x15c/0x160
[ 83.446343] Code: aa0103f4 f9400001 f90027a1 d2800001 (f94006a0)
[ 83.449903] ---[ end trace 0000000000000000 ]---
This can be reproduced by probing an AHB chipset which is not
having a fixed memory region. During reboot (or rmmod) trace
can be seen.
Fix this issue by adding a condition check on firmware fixed memory
hw_param as done in the counter initialization function.
Tested-on: IPQ8074 hw2.0 AHB WLAN.HK.2.7.0.1-01744-QCAHKSWPL_SILICONZ-1
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，该漏洞源于固件资源反初始化不当，可能导致空指针取消引用。
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-2023-53532 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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同批安全公告 · Linux · 2025-10-01 · 共 169 条
| CVE-2023-53517 | 9.8 CRITICAL | Linux kernel 安全漏洞 |
| CVE-2025-39919 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-39918 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53454 | 8.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50442 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53493 | 8.4 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50437 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53510 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-39924 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53506 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2025-39927 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50421 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50423 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53504 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53495 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2022-50432 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53494 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53478 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53486 | 7.8 HIGH | Linux kernel 安全漏洞 |
| CVE-2023-53481 | 7.8 HIGH | Linux kernel 安全漏洞 |
显示前 20 条，共 169 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2023-53532
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