CVE-2026-72306

Kernel crash via VDUSE message-list race

Published Aug 15, 2026 · Updated Aug 15, 2026

Race condition in the VDUSE driver in the Linux kernel allows attackers to crash the kernel through concurrent message handling. vduse_dev_read_iter dequeues a message from send_list, while a timed-out vduse_dev_msg_sync path can later delete the same list entry after observing msg->complete as false. The published record does not identify the attacker access needed to create this interleaving; the bounded consequence is a kernel crash.

CVSS severity0.0
None
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

Race condition in the VDUSE driver in the Linux kernel allows attackers to crash the kernel through concurrent message handling. vduse_dev_read_iter dequeues a message from send_list, while a timed-out vduse_dev_msg_sync path can later delete the same list entry after observing msg->complete as false. The published record does not identify the attacker access needed to create this interleaving; the bounded consequence is a kernel crash.

The record

CVE
CVE-2026-72306
Published
Aug 15, 2026
Updated
Aug 15, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-362, T1499
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 15, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 15, 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=5.15
  2. Affected versionversion=c8a6153b6c59d95c0e091f053f6f180952ade91e <09723f26ed801c083e914cec4cc0e1af4b933dc7
  3. Affected versionversion=c8a6153b6c59d95c0e091f053f6f180952ade91e <3755965adbb617f4283ac6ccd351ed0676843cba
  4. Affected versionversion=c8a6153b6c59d95c0e091f053f6f180952ade91e <8062ff9d366c4bc4ae775e14eac9a769f20c60dd
  5. Affected versionversion=c8a6153b6c59d95c0e091f053f6f180952ade91e <ae9c13b6fd79087cc5a216ee1649b6f012c2a238
  6. Affected versionversion=c8a6153b6c59d95c0e091f053f6f180952ade91e <c83ad3dfa6d9953d5ce6839416bf5a1bfc50285a
  7. Affected versionversion=c8a6153b6c59d95c0e091f053f6f180952ade91e <d7e7c813834c6c05c26033456ab7169e2f9c99eb
  8. Affected versionversion=c8a6153b6c59d95c0e091f053f6f180952ade91e <d8715b5a8fdb23fef576700e71d0c253dbeddad4

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=5.15; version=c8a6153b6c59d95c0e091f053f6f180952ade91e <09723f26ed801c083e914cec4cc0e1af4b933dc7; version=c8a6153b6c59d95c0e091f053f6f180952ade91e <3755965adbb617f4283ac6ccd351ed0676843cba; version=c8a6153b6c59d95c0e091f053f6f180952ade91e <8062ff9d366c4bc4ae775e14eac9a769f20c60dd; version=c8a6153b6c59d95c0e091f053f6f180952ade91e <ae9c13b6fd79087cc5a216ee1649b6f012c2a238; version=c8a6153b6c59d95c0e091f053f6f180952ade91e <c83ad3dfa6d9953d5ce6839416bf5a1bfc50285a; version=c8a6153b6c59d95c0e091f053f6f180952ade91e <d7e7c813834c6c05c26033456ab7169e2f9c99eb; version=c8a6153b6c59d95c0e091f053f6f180952ade91e <d8715b5a8fdb23fef576700e71d0c253dbeddad4

Published CVSS scores

0.0Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N

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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
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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