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

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2025-39973— i40e: add validation for ring_len param

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，该漏洞源于未验证ring_len参数，可能导致硬件内存上下文错误。

CVSS 8.8 · High EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1200 · Hardware Additions

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd< 0543d40d6513cdf1c7882811086e59a6455dfe97 affected
5c3c48ac6bf56367c4e89f6453cd2d61e50375bd< 7d749e38dd2b7e8a80da2ca30c93e09de95bfcf9 affected
5c3c48ac6bf56367c4e89f6453cd2d61e50375bd< 45a7527cd7da4cdcf3b06b5c0cb1cae30b5a5985 affected
5c3c48ac6bf56367c4e89f6453cd2d61e50375bd< d3b0d3f8d11fa957171fbb186e53998361a88d4e affected
5c3c48ac6bf56367c4e89f6453cd2d61e50375bd< c0c83f4cd074b75cecef107bfc349be7d516c9c4 affected
5c3c48ac6bf56367c4e89f6453cd2d61e50375bd< 05fe81fb9db20464fa532a3835dc8300d68a2f84 affected
5c3c48ac6bf56367c4e89f6453cd2d61e50375bd< afec12adab55d10708179a64d95d650741e60fe0 affected
5c3c48ac6bf56367c4e89f6453cd2d61e50375bd< 55d225670def06b01af2e7a5e0446fbe946289e8 affected
… +10 more rows
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2025-39973

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
i40e: add validation for ring_len param
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: i40e: add validation for ring_len param The `ring_len` parameter provided by the virtual function (VF) is assigned directly to the hardware memory context (HMC) without any validation. To address this, introduce an upper boundary check for both Tx and Rx queue lengths. The maximum number of descriptors supported by the hardware is 8k-32. Additionally, enforce alignment constraints: Tx rings must be a multiple of 8, and Rx rings must be a multiple of 32.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
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，该漏洞源于未验证ring_len参数，可能导致硬件内存上下文错误。
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 5c3c48ac6bf56367c4e89f6453cd2d61e50375bd ~ 0543d40d6513cdf1c7882811086e59a6455dfe97 -
Linux Linux 3.12 -

II. Public POCs for CVE-2025-39973

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

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-39973

请登录查看更多情报信息。

Same Patch Batch · Linux · 2025-10-15 · 34 CVEs total

CVE-2025-39975 9.8 CRITICAL smb: client: fix wrong index reference in smb2_compound_op()
CVE-2025-39972 8.8 HIGH i40e: fix idx validation in i40e_validate_queue_map
CVE-2025-39969 8.8 HIGH i40e: fix validation of VF state in get resources
CVE-2025-39971 8.8 HIGH i40e: fix idx validation in config queues msg
CVE-2025-39970 8.8 HIGH i40e: fix input validation logic for action_meta
CVE-2025-39982 8.8 HIGH Bluetooth: hci_event: Fix UAF in hci_acl_create_conn_sync
CVE-2025-40000 8.8 HIGH wifi: rtw89: fix use-after-free in rtw89_core_tx_kick_off_and_wait()
CVE-2025-39983 8.8 HIGH Bluetooth: hci_event: Fix UAF in hci_conn_tx_dequeue
CVE-2025-39987 7.8 HIGH can: hi311x: populate ndo_change_mtu() to prevent buffer overflow
CVE-2025-39976 7.8 HIGH futex: Use correct exit on failure from futex_hash_allocate_default()
CVE-2025-39977 7.8 HIGH futex: Prevent use-after-free during requeue-PI
CVE-2025-39978 7.8 HIGH octeontx2-pf: Fix potential use after free in otx2_tc_add_flow()
CVE-2025-39979 7.8 HIGH net/mlx5: fs, fix UAF in flow counter release
CVE-2025-39981 7.8 HIGH Bluetooth: MGMT: Fix possible UAFs
CVE-2025-39985 7.8 HIGH can: mcba_usb: populate ndo_change_mtu() to prevent buffer overflow
CVE-2025-39986 7.8 HIGH can: sun4i_can: populate ndo_change_mtu() to prevent buffer overflow
CVE-2025-39988 7.8 HIGH can: etas_es58x: populate ndo_change_mtu() to prevent buffer overflow
CVE-2025-39990 7.8 HIGH bpf: Check the helper function is valid in get_helper_proto
CVE-2025-39993 7.8 HIGH media: rc: fix races with imon_disconnect()
CVE-2025-39967 7.8 HIGH fbcon: fix integer overflow in fbcon_do_set_font

Showing top 20 of 34 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39973

No comments yet

Leave a comment