CVE-2025-71075

Service interruption via unsynchronized removal tasklet

Published Jan 13, 2026 · Updated Jan 13, 2026

Use-after-free in the Linux Kernel aic94xx SCSI driver allows local users to interrupt service during device removal or module unload. The asd_pci_remove() function frees the asd_ha adapter structure without killing its pending dl_tasklet, so deferred work can dereference released memory. Reaching the flaw requires device removal through hot-unplug or module unload and winning the race; the precise failure mode is not published.

CVSS severity7.8
High
EPSS probability0.15%
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 Kernel aic94xx SCSI driver allows local users to interrupt service during device removal or module unload. The asd_pci_remove() function frees the asd_ha adapter structure without killing its pending dl_tasklet, so deferred work can dereference released memory. Reaching the flaw requires device removal through hot-unplug or module unload and winning the race; the precise failure mode is not published.

The record

CVE
CVE-2025-71075
Published
Jan 13, 2026
Updated
Jan 13, 2026
Vendor
The Linux Kernel Organization
Product
Linux Kernel
Classifications
CWE-416, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 13, 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=2.6.19
  2. Affected versionversion=2908d778ab3e244900c310974e1fc1c69066e450 <751c19635c2bfaaf2836a533caa3663633066dcf
  3. Affected versionversion=2908d778ab3e244900c310974e1fc1c69066e450 <a41dc180b6e1229ae49ca290ae14d82101c148c3
  4. Affected versionversion=2908d778ab3e244900c310974e1fc1c69066e450 <b3e655e52b98a1d3df41c8e42035711e083099f8
  5. Affected versionversion=2908d778ab3e244900c310974e1fc1c69066e450 <e354793a7ab9bb0934ea699a9d57bcd1b48fc27b
  6. Affected versionversion=2908d778ab3e244900c310974e1fc1c69066e450 <f6ab594672d4cba08540919a4e6be2e202b60007

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linux Kernelversion=2.6.19; version=2908d778ab3e244900c310974e1fc1c69066e450 <751c19635c2bfaaf2836a533caa3663633066dcf; version=2908d778ab3e244900c310974e1fc1c69066e450 <a41dc180b6e1229ae49ca290ae14d82101c148c3; version=2908d778ab3e244900c310974e1fc1c69066e450 <b3e655e52b98a1d3df41c8e42035711e083099f8; version=2908d778ab3e244900c310974e1fc1c69066e450 <e354793a7ab9bb0934ea699a9d57bcd1b48fc27b; version=2908d778ab3e244900c310974e1fc1c69066e450 <f6ab594672d4cba08540919a4e6be2e202b60007

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5OracleCVSS: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-416Use After Free
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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