CVE-2024-46765

Kernel crash via unsynchronized XDP reconfiguration

Published Sep 18, 2024 · Updated Aug 5, 2026

Race condition in affected Linux kernel ice driver releases allows local users to crash the kernel through XDP reconfiguration. ice_xdp() and unlocked ice_vsi_rebuild() concurrently reconfigure and free shared ring resources during an asynchronous PF reset, causing null dereferences and use-after-free accesses. Exploitation requires local syscall access to an ice-managed interface with XDP or AF_XDP activity and a coincident or induced PF reset; the resulting corruption can panic the host.

CVSS severity7.8
High
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in affected Linux kernel ice driver releases allows local users to crash the kernel through XDP reconfiguration. ice_xdp() and unlocked ice_vsi_rebuild() concurrently reconfigure and free shared ring resources during an asynchronous PF reset, causing null dereferences and use-after-free accesses. Exploitation requires local syscall access to an ice-managed interface with XDP or AF_XDP activity and a coincident or induced PF reset; the resulting corruption can panic the host.

The record

CVE
CVE-2024-46765
Published
Sep 18, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 18, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.5
  2. Affected versionversion=efc2214b6047b6f5b4ca53151eba62521b9452d6 <2504b8405768a57a71e660dbfd5abd59f679a03f
  3. Affected versionversion=efc2214b6047b6f5b4ca53151eba62521b9452d6 <2f057db2fb29bc209c103050647562e60554d3d3
  4. Affected versionversion=efc2214b6047b6f5b4ca53151eba62521b9452d6 <391f7dae3d836891fc6cfbde38add2d0e10c6b7f

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.5; version=efc2214b6047b6f5b4ca53151eba62521b9452d6 <2504b8405768a57a71e660dbfd5abd59f679a03f; version=efc2214b6047b6f5b4ca53151eba62521b9452d6 <2f057db2fb29bc209c103050647562e60554d3d3; version=efc2214b6047b6f5b4ca53151eba62521b9452d6 <391f7dae3d836891fc6cfbde38add2d0e10c6b7f

Published CVSS scores

7.8Linux Kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5NISTCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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