CVE-2024-26600

System crash via unchecked PHY callback

Published Feb 24, 2024 · Updated May 11, 2026

NULL pointer dereference in Linux kernel 3.7 through 6.7.4 allows local users to crash the system by waking an idle Ethernet gadget. The phy-omap-usb2 driver calls an external PHY's send_srp or set_vbus callback without confirming that the callback is implemented. Exploitation requires local low-privilege access, an idle Ethernet USB gadget, and an external PHY lacking the callback; the resulting NULL call crashes the kernel.

CVSS severity5.5
Medium
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in Linux kernel 3.7 through 6.7.4 allows local users to crash the system by waking an idle Ethernet gadget. The phy-omap-usb2 driver calls an external PHY's send_srp or set_vbus callback without confirming that the callback is implemented. Exploitation requires local low-privilege access, an idle Ethernet USB gadget, and an external PHY lacking the callback; the resulting NULL call crashes the kernel.

The record

CVE
CVE-2024-26600
Published
Feb 24, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 24, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=3.7
  2. Affected versionversion=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <0430bfcd46657d9116a26cd377f112cbc40826a4
  3. Affected versionversion=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <14ef61594a5a286ae0d493b8acbf9eac46fd04c4
  4. Affected versionversion=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <396e17af6761b3cc9e6e4ca94b4de7f642bfece1
  5. Affected versionversion=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <486218c11e8d1c8f515a3bdd70d62203609d4b6b
  6. Affected versionversion=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <7104ba0f1958adb250319e68a15eff89ec4fd36d
  7. Affected versionversion=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <8398d8d735ee93a04fb9e9f490e8cacd737e3bf5
  8. Affected versionversion=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <8cc889b9dea0579726be9520fcc766077890b462
  9. Affected versionversion=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <be3b82e4871ba00e9b5d0ede92d396d579d7b3b3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.7; version=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <0430bfcd46657d9116a26cd377f112cbc40826a4; version=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <14ef61594a5a286ae0d493b8acbf9eac46fd04c4; version=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <396e17af6761b3cc9e6e4ca94b4de7f642bfece1; version=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <486218c11e8d1c8f515a3bdd70d62203609d4b6b; version=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <7104ba0f1958adb250319e68a15eff89ec4fd36d; version=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <8398d8d735ee93a04fb9e9f490e8cacd737e3bf5; version=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <8cc889b9dea0579726be9520fcc766077890b462; version=657b306a7bdfca4ae1514b533a0e7c3c6d26dbc6 <be3b82e4871ba00e9b5d0ede92d396d579d7b3b3

Published CVSS scores

5.5NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 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
T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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