CVE-2026-89883Hinoki check available

Resource leak via incomplete probe-failure cleanup

Published Sep 16, 2026 · Updated Sep 16, 2026

Resource cleanup error in the sunxi-cir driver in Linux allows attackers to retain registered rc-device resources after a failed probe. In sunxi_ir_probe(), error paths after rc_register_device() call rc_free_device() without first calling rc_unregister_device(). Reachability requires successful registration followed by failure during IRQ lookup, IRQ request, or hardware initialization; no further security consequence is published.

CVSS severityUnavailable
Unscored
EPSS probabilityUnavailable
No score available in this record
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Resource cleanup error in the sunxi-cir driver in Linux allows attackers to retain registered rc-device resources after a failed probe. In sunxi_ir_probe(), error paths after rc_register_device() call rc_free_device() without first calling rc_unregister_device(). Reachability requires successful registration followed by failure during IRQ lookup, IRQ request, or hardware initialization; no further security consequence is published.

The record

CVE
CVE-2026-89883
Published
Sep 16, 2026
Updated
Sep 16, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 16, 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=3.17
  2. Affected versionversion=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <4655a591478e4b31a3396695a2457daad9d4c899
  3. Affected versionversion=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <479aa6fa8c50f1052f1451326ef7d4d586d340c3
  4. Affected versionversion=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <4efd7146dcf959afe64e9c51531cd8f82e60eab6
  5. Affected versionversion=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <59951b8a87ef4fb4b5b9409f70ba07663681a040
  6. Affected versionversion=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <5b58d8c206f37525c8217171e1f3e91dd2fa55e5
  7. Affected versionversion=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e
  8. Affected versionversion=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <826763adbd8bd3137c5b3756650da473dc6216d5

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=3.17; version=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <4655a591478e4b31a3396695a2457daad9d4c899; version=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <479aa6fa8c50f1052f1451326ef7d4d586d340c3; version=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <4efd7146dcf959afe64e9c51531cd8f82e60eab6; version=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <59951b8a87ef4fb4b5b9409f70ba07663681a040; version=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <5b58d8c206f37525c8217171e1f3e91dd2fa55e5; version=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <5e6f5bffaa80fc8ecce348ec0e34fed9d843e47e; version=b4e3e59fb59c214c5bcf9d1bf2971f100e0dac4f <826763adbd8bd3137c5b3756650da473dc6216d5

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

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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

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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