CVE-2026-90329Hinoki check available

Kernel memory compromise via failed-probe report race

Published Sep 17, 2026 · Updated Sep 18, 2026

Use-after-free in the Linux HID core allows physically proximate attackers to read or write kernel memory through malicious Bluetooth reports. During a failed probe, __hid_device_probe() frees hidraw resources and clears hdev->driver without first excluding report callbacks already running after hid_device_io_start(). A paired Bluetooth HID peripheral can drive both the probe failure and concurrent reports, causing arbitrary kernel reads, writes, or a panic.

CVSS severity8.8
High
EPSS probability0.34%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Use-after-free in the Linux HID core allows physically proximate attackers to read or write kernel memory through malicious Bluetooth reports. During a failed probe, __hid_device_probe() frees hidraw resources and clears hdev->driver without first excluding report callbacks already running after hid_device_io_start(). A paired Bluetooth HID peripheral can drive both the probe failure and concurrent reports, causing arbitrary kernel reads, writes, or a panic.

The record

CVE
CVE-2026-90329
Published
Sep 17, 2026
Updated
Sep 18, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1200
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 17, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=3.10
  2. Affected versionversion=c849a6143bec520aff2a6646518b0d041402428b <01eeb601a1626e683fb7b77c63f442b06fb87093
  3. Affected versionversion=c849a6143bec520aff2a6646518b0d041402428b <207853d46f7ef2e28042344a1468da8754c3ddbf
  4. Affected versionversion=c849a6143bec520aff2a6646518b0d041402428b <2c35cdeb13a0c52429501e66f368fa59cad235f6
  5. Affected versionversion=c849a6143bec520aff2a6646518b0d041402428b <3ffb088a2ed34ca982cfc2c81d107ce370aa45f1
  6. Affected versionversion=c849a6143bec520aff2a6646518b0d041402428b <98201b46f7e33fe11af6f024fecb40fb56634225
  7. Affected versionversion=c849a6143bec520aff2a6646518b0d041402428b <9a3da56aae28e1ad3a3e591f72a537742053ecd2
  8. Affected versionversion=c849a6143bec520aff2a6646518b0d041402428b <b85d1000eb8842768970f2fd0a8fd362472d02d5
  9. Affected versionversion=c849a6143bec520aff2a6646518b0d041402428b <edd490b8ad85c052eaf10dcc9f390ea54f1e1b39

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3.10; version=c849a6143bec520aff2a6646518b0d041402428b <01eeb601a1626e683fb7b77c63f442b06fb87093; version=c849a6143bec520aff2a6646518b0d041402428b <207853d46f7ef2e28042344a1468da8754c3ddbf; version=c849a6143bec520aff2a6646518b0d041402428b <2c35cdeb13a0c52429501e66f368fa59cad235f6; version=c849a6143bec520aff2a6646518b0d041402428b <3ffb088a2ed34ca982cfc2c81d107ce370aa45f1; version=c849a6143bec520aff2a6646518b0d041402428b <98201b46f7e33fe11af6f024fecb40fb56634225; version=c849a6143bec520aff2a6646518b0d041402428b <9a3da56aae28e1ad3a3e591f72a537742053ecd2; version=c849a6143bec520aff2a6646518b0d041402428b <b85d1000eb8842768970f2fd0a8fd362472d02d5; version=c849a6143bec520aff2a6646518b0d041402428b <edd490b8ad85c052eaf10dcc9f390ea54f1e1b39

Published CVSS scores

8.8Linux CNACVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/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.

Activity data is delayed. The latest report is Sep 28, 2026.

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No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1200Hardware Additions

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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