CVE-2026-90268Hinoki check available

Sysfs entry leak via incorrect SCSI probe cleanup

Published Sep 17, 2026 · Updated Sep 18, 2026

Resource-management error in Linux 7.1 through 7.2.5 allows attackers to leak a sysfs entry during failed SCSI disk probing. In sd_probe(), failure from sd_large_pool_create() after device_add() succeeds jumps to out_free_index, which directly frees a registered sdkp instead of unregistering disk_dev and letting scsi_disk_release() free it. The path requires a large-pool allocation failure during SCSI disk discovery; published material establishes no attacker-controlled trigger or impact beyond the stale entry and invalid object lifetime.

CVSS severity8.1
High
EPSS probability0.45%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Resource-management error in Linux 7.1 through 7.2.5 allows attackers to leak a sysfs entry during failed SCSI disk probing. In sd_probe(), failure from sd_large_pool_create() after device_add() succeeds jumps to out_free_index, which directly frees a registered sdkp instead of unregistering disk_dev and letting scsi_disk_release() free it. The path requires a large-pool allocation failure during SCSI disk discovery; published material establishes no attacker-controlled trigger or impact beyond the stale entry and invalid object lifetime.

The record

CVE
CVE-2026-90268
Published
Sep 17, 2026
Updated
Sep 18, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

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=7.1
  2. Affected versionversion=7179e626b76eb42f2529c6f6dd6ba88ea2445372 <748a14a0d41cfe3017251c11b314f85045414942
  3. Affected versionversion=7179e626b76eb42f2529c6f6dd6ba88ea2445372 <e3cc6ea1a745e7f5d326f919a428b244fa119d8f

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=7.1; version=7179e626b76eb42f2529c6f6dd6ba88ea2445372 <748a14a0d41cfe3017251c11b314f85045414942; version=7179e626b76eb42f2529c6f6dd6ba88ea2445372 <e3cc6ea1a745e7f5d326f919a428b244fa119d8f

Published CVSS scores

8.1NVDCVSS:3.1/AV:N/AC:H/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.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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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