CVE-2026-53037

System hang via reset-path allocation deadlock

Published Jun 24, 2026 · Updated Jun 24, 2026

Improper locking in affected Linux Kernel branches allows local users to hang the system by resetting a crafted composite USB device. The hid_pre_reset() and hid_post_reset() paths allocate memory with flags that permit block I/O while block error handling holds the device-reset mutex, creating a recursive wait. Exploitation requires low-privileged local access and a USB device combining HID with storage or UAS; confidentiality and integrity are unaffected.

CVSS severity5.5
Medium
EPSS probability0.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper locking in affected Linux Kernel branches allows local users to hang the system by resetting a crafted composite USB device. The hid_pre_reset() and hid_post_reset() paths allocate memory with flags that permit block I/O while block error handling holds the device-reset mutex, creating a recursive wait. Exploitation requires low-privileged local access and a USB device combining HID with storage or UAS; confidentiality and integrity are unaffected.

The record

CVE
CVE-2026-53037
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-667, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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=3.5
  2. Affected versionversion=dc3c78e43469063c5bf4b744214508f94c4129f9 <4e900465296ce9fb12ed47dc77389b8dde95bfe0
  3. Affected versionversion=dc3c78e43469063c5bf4b744214508f94c4129f9 <56d318ef8766f0deb08517fd8f3007256ea7997d
  4. Affected versionversion=dc3c78e43469063c5bf4b744214508f94c4129f9 <8df2c1b47ee3cd50fd454f75c7a7e2ae8a6adf72
  5. Affected versionversion=dc3c78e43469063c5bf4b744214508f94c4129f9 <90550af0aad5e75110073c501e4fb42fca20ff80
  6. Affected versionversion=dc3c78e43469063c5bf4b744214508f94c4129f9 <ad4505d2ab3aaac6498f17649608e70e80034bf2
  7. Affected versionversion=dc3c78e43469063c5bf4b744214508f94c4129f9 <b3d16611d7cd78e9d5c6baa19b61b7caf9f1ab5e
  8. Affected versionversion=dc3c78e43469063c5bf4b744214508f94c4129f9 <c7abd0e6c87441e99c759d40eb6fe589634e3041
  9. Affected versionversion=dc3c78e43469063c5bf4b744214508f94c4129f9 <eeceb6f4dd42065fdda3a526a93d08b8fb90fb69

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=3.5; version=dc3c78e43469063c5bf4b744214508f94c4129f9 <4e900465296ce9fb12ed47dc77389b8dde95bfe0; version=dc3c78e43469063c5bf4b744214508f94c4129f9 <56d318ef8766f0deb08517fd8f3007256ea7997d; version=dc3c78e43469063c5bf4b744214508f94c4129f9 <8df2c1b47ee3cd50fd454f75c7a7e2ae8a6adf72; version=dc3c78e43469063c5bf4b744214508f94c4129f9 <90550af0aad5e75110073c501e4fb42fca20ff80; version=dc3c78e43469063c5bf4b744214508f94c4129f9 <ad4505d2ab3aaac6498f17649608e70e80034bf2; version=dc3c78e43469063c5bf4b744214508f94c4129f9 <b3d16611d7cd78e9d5c6baa19b61b7caf9f1ab5e; version=dc3c78e43469063c5bf4b744214508f94c4129f9 <c7abd0e6c87441e99c759d40eb6fe589634e3041; version=dc3c78e43469063c5bf4b744214508f94c4129f9 <eeceb6f4dd42065fdda3a526a93d08b8fb90fb69

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 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-667Improper Locking
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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