CVE-2026-89625

Kernel crash via USB teardown race

Published Sep 11, 2026 · Updated Sep 11, 2026

Use-after-free in the Linux hid-sony driver allows attackers to crash the kernel through a GHL dongle disconnect race. An in-flight URB completion can re-arm ghl_poke_timer after sony_remove deletes the timer and drops the URB reference, causing the timer to access its freed driver state. Reachability requires the driver to bind a GHL PS4 dongle and a disconnect or driver-unbind race while the poke URB remains in flight.

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

Use-after-free in the Linux hid-sony driver allows attackers to crash the kernel through a GHL dongle disconnect race. An in-flight URB completion can re-arm ghl_poke_timer after sony_remove deletes the timer and drops the URB reference, causing the timer to access its freed driver state. Reachability requires the driver to bind a GHL PS4 dongle and a disconnect or driver-unbind race while the poke URB remains in flight.

The record

CVE
CVE-2026-89625
Published
Sep 11, 2026
Updated
Sep 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Sep 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 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=5.11
  2. Affected versionversion=cc894ac553605c9193a7a94372ff2f8af5766f46 <114a58640aaf3c2eb97b5b01c75ab5e541d15d9c
  3. Affected versionversion=cc894ac553605c9193a7a94372ff2f8af5766f46 <3155dc327344d286f17345cd371be05e255a4328
  4. Affected versionversion=cc894ac553605c9193a7a94372ff2f8af5766f46 <a26705bd2e2728833e7a538ce91e58a5eeff496a

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=cc894ac553605c9193a7a94372ff2f8af5766f46 <114a58640aaf3c2eb97b5b01c75ab5e541d15d9c; version=cc894ac553605c9193a7a94372ff2f8af5766f46 <3155dc327344d286f17345cd371be05e255a4328; version=cc894ac553605c9193a7a94372ff2f8af5766f46 <a26705bd2e2728833e7a538ce91e58a5eeff496a

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesadmin
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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