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CVE-2025-39969— i40e: fix validation of VF state in get 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，该漏洞源于错误验证VF状态，可能导致资源获取不当。

CVSS 8.8 · High EPSS 0.15% · P4

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 21

VendorProduct Version RangeStatus
Linux Linux 171527da84149c2c7aa6a60a64b09d24f3546298< 185745d56ec958bf8aa773828213237dfcc32f5a affected
eb87117c27e729b0aeef4d72ed40d6a1761b0f68< f47876788a23de296c42ef9d505b5c1630f0b4b8 affected
2132643b956f553f5abddc9bae20dae267b082e0< 8e35c80f8570426fe0f0cc92b151ebd835975f22 affected
61125b8be85dfbc7e9c7fe1cc6c6d631ab603516< 6c3981fd59ef11a75005ac9978f034da5a168b6a affected
61125b8be85dfbc7e9c7fe1cc6c6d631ab603516< e748f1ee493f88e38b77363a60499f979d42c58a affected
61125b8be85dfbc7e9c7fe1cc6c6d631ab603516< 6128bbc7adc25c87c2f64b5eb66a280b78ef7ab7 affected
61125b8be85dfbc7e9c7fe1cc6c6d631ab603516< a991dc56d3e9a2c3db87d0c3f03c24f6595400f1 affected
61125b8be85dfbc7e9c7fe1cc6c6d631ab603516< 877b7e6ffc23766448236e8732254534c518ba42 affected
… +13 more rows
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I. Basic Information for CVE-2025-39969

Vulnerability Information
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Vulnerability Title
i40e: fix validation of VF state in get resources
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: i40e: fix validation of VF state in get resources VF state I40E_VF_STATE_ACTIVE is not the only state in which VF is actually active so it should not be used to determine if a VF is allowed to obtain resources. Use I40E_VF_STATE_RESOURCES_LOADED that is set only in i40e_vc_get_vf_resources_msg() and cleared during reset.
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，该漏洞源于错误验证VF状态，可能导致资源获取不当。
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 171527da84149c2c7aa6a60a64b09d24f3546298 ~ 185745d56ec958bf8aa773828213237dfcc32f5a -
Linux Linux 5.16 -

II. Public POCs for CVE-2025-39969

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III. Intelligence Information for CVE-2025-39969

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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-2025-39973 8.8 HIGH i40e: add validation for ring_len param
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-2025-39972 8.8 HIGH i40e: fix idx validation in i40e_validate_queue_map
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-2025-39969

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