CVE-2025-40107

Kernel crash via uninitialized hi311x workqueue

Published Nov 3, 2025 · Updated Nov 3, 2025

Null pointer dereference in the Linux hi311x CAN driver allows attackers to crash the kernel during resume before interface setup. The resume callback schedules priv->restart_work even when hi3110_open never allocated priv->wq, so the workqueue pointer is null. Reachability requires an attached HI-3110 CAN controller, system sleep and resume, and an interface that was never enabled.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
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 the Linux hi311x CAN driver allows attackers to crash the kernel during resume before interface setup. The resume callback schedules priv->restart_work even when hi3110_open never allocated priv->wq, so the workqueue pointer is null. Reachability requires an attached HI-3110 CAN controller, system sleep and resume, and an interface that was never enabled.

The record

CVE
CVE-2025-40107
Published
Nov 3, 2025
Updated
Nov 3, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Nov 3, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record 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=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1d2ef21f02baff0c109ad78b9e835fb4acb14533
  2. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6b696808472197b77b888f50bc789a3bae077743
  3. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d1fc4c041459e2d4856c1b2501486ba4f0cbf96b
  4. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e93af787187e585933570563c643337fa731584a
  5. Affected versionversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fd00cf38fd437c979f0e5905e3ebdfc3f55a4b96

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1d2ef21f02baff0c109ad78b9e835fb4acb14533; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <6b696808472197b77b888f50bc789a3bae077743; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <d1fc4c041459e2d4856c1b2501486ba4f0cbf96b; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <e93af787187e585933570563c643337fa731584a; version=1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <fd00cf38fd437c979f0e5905e3ebdfc3f55a4b96

Published CVSS scores

No CVSS assessment is available in this record.

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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499Endpoint Denial of Service

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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