CVE-2025-40060

Kernel panic via mismatched allocation failure return

Published Oct 28, 2025 · Updated Oct 28, 2025

Denial of service in the Linux kernel TRBE driver allows attackers to cause a kernel panic through a buffer allocation failure. arm_trbe_alloc_buffer() returns an error pointer for allocation failure, but etm_setup_aux() tests only for NULL and continues with the invalid result. Reachability requires ARM TRBE tracing hardware and an allocation failure; the published record does not identify attacker privileges or a controllable trigger.

CVSS severityUnavailable
Unscored
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the Linux kernel TRBE driver allows attackers to cause a kernel panic through a buffer allocation failure. arm_trbe_alloc_buffer() returns an error pointer for allocation failure, but etm_setup_aux() tests only for NULL and continues with the invalid result. Reachability requires ARM TRBE tracing hardware and an allocation failure; the published record does not identify attacker privileges or a controllable trigger.

The record

CVE
CVE-2025-40060
Published
Oct 28, 2025
Updated
Oct 28, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Oct 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 28, 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=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <296da78494633e1ab5e2e74173a9c8683b04aa6b
  2. Affected versionversion=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <8a55c161f7f9c1aa1c70611b39830d51c83ef36d
  3. Affected versionversion=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <9768536f82600a05ce901e31ccfabd92c027ff71
  4. Affected versionversion=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <cef047e0a55cb07906fcaae99170f19a9c0bb6c2
  5. Affected versionversion=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <f505a165f1c7cd37b4cb6952042a5984693a4067
  6. Affected versionversion=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <fe53a726d5edf864e80b490780cc135fc1adece9
  7. Affected versionversion=5.13

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <296da78494633e1ab5e2e74173a9c8683b04aa6b; version=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <8a55c161f7f9c1aa1c70611b39830d51c83ef36d; version=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <9768536f82600a05ce901e31ccfabd92c027ff71; version=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <cef047e0a55cb07906fcaae99170f19a9c0bb6c2; version=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <f505a165f1c7cd37b4cb6952042a5984693a4067; version=3fbf7f011f2426dac8c982f1d2ef469a7959a524 <fe53a726d5edf864e80b490780cc135fc1adece9; version=5.13

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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