Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2023-53532— wifi: ath11k: fix deinitialization of firmware resources

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

AI Predicted 5.5 Difficulty: Hard EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 10

VendorProduct Version RangeStatus
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 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2023-53532

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
wifi: ath11k: fix deinitialization of firmware resources
Source: 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
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
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。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux f9eec4947add999e1251bf14365a48a655b786a4 ~ 0324300dce3412d4737b4ec5898d0188495a7caa -
Linux Linux 5.19 -

II. Public POCs for CVE-2023-53532

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2023-53532

请登录查看更多情报信息。

Same Patch Batch · Linux · 2025-10-01 · 169 CVEs total

CVE-2023-53517 9.8 CRITICAL tipc: do not update mtu if msg_max is too small in mtu negotiation
CVE-2025-39919 8.8 HIGH wifi: mt76: mt7996: add missing check for rx wcid entries
CVE-2025-39918 8.8 HIGH wifi: mt76: fix linked list corruption
CVE-2023-53454 8.8 HIGH HID: multitouch: Correct devm device reference for hidinput input_dev name
CVE-2022-50442 8.4 HIGH fs/ntfs3: Validate buffer length while parsing index
CVE-2023-53493 8.4 HIGH accel/qaic: tighten bounds checking in decode_message()
CVE-2022-50437 7.8 HIGH drm/msm/hdmi: fix memory corruption with too many bridges
CVE-2023-53510 7.8 HIGH scsi: ufs: core: Fix handling of lrbp->cmd
CVE-2025-39924 7.8 HIGH erofs: fix invalid algorithm for encoded extents
CVE-2023-53506 7.8 HIGH udf: Do not bother merging very long extents
CVE-2025-39927 7.8 HIGH ceph: fix race condition validating r_parent before applying state
CVE-2022-50421 7.8 HIGH rpmsg: char: Avoid double destroy of default endpoint
CVE-2022-50423 7.8 HIGH ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage()
CVE-2023-53504 7.8 HIGH RDMA/bnxt_re: Properly order ib_device_unalloc() to avoid UAF
CVE-2023-53495 7.8 HIGH net: ethernet: mvpp2_main: fix possible OOB write in mvpp2_ethtool_get_rxnfc()
CVE-2022-50432 7.8 HIGH kernfs: fix use-after-free in __kernfs_remove
CVE-2023-53494 7.8 HIGH crypto: xts - Handle EBUSY correctly
CVE-2023-53478 7.8 HIGH tracing/synthetic: Fix races on freeing last_cmd
CVE-2023-53486 7.8 HIGH fs/ntfs3: Enhance the attribute size check
CVE-2023-53481 7.8 HIGH ubi: ubi_wl_put_peb: Fix infinite loop when wear-leveling work failed

Showing top 20 of 169 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2023-53532

No comments yet

Leave a comment