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VulnerabilityPublished Updated

CVE-2025-38336: Linux kernel · ata: pata_via: Force PIO for ATAPI devices on VT6415/VT6330

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · fixed in d29fc02caad7f94b62d56ee1b01c954f9c961ba7 : update Linux kernel when convenient.

Data as of 5 Nov 2026, 21:33 UTC

Severity
Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Thin evidence

One scorer or none
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Limited control over the software or limited information exposure

CISA SSVC assessment, 2026-11-05.

Patch
Available – fixed in d29fc02caad7f94b62d56ee1b01c954f9c961ba7, bb7212ee4ff086628a2c1c22336d082a87cb893d, 8212cd92fe40aae6fe5a073bc70e758c42bb4bfc +7

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 10 Jul 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=2.6.27.19 <2.6.28
  • >=2.6.28.7 <2.6.29
Fixed in
  • d29fc02caad7f94b62d56ee1b01c954f9c961ba7
  • bb7212ee4ff086628a2c1c22336d082a87cb893d
  • 8212cd92fe40aae6fe5a073bc70e758c42bb4bfc
  • 947f9304d3c876c6672b947b80c0ef51161c6d2f
  • 67d66a5e4583fd3bcf13d6f747e571df13cbad51
  • 8edfed4439b107d62151ff6c075958d169da3e71
  • 7fc89c218fc96a296a2840b1e37f4e0975f7a108
  • 2.6.29
  • 2.6.28
  • 0d9a48dfa934f43ac839211ae4aeba34f666a9a5
LinuxLinuxAffected
  • =2.6.29
Fixed in–

AI-suggested

A fix is available in Linux kernel versions 2.6.29 and later, as well as backported patches in 2.6.28 and 2.6.27.19 series. The remediation involves forcing PIO mode for ATAPI devices on affected controllers to avoid DMA-related hangs. Users should upgrade to these fixed kernel versions to resolve the issue.

Description

A hardware bug in the VT6415/VT6330 controller in the Linux kernel causes system hangs when performing ATAPI DMA operations, particularly when reading optical media. This issue affects certain Linux kernel versions and can prevent system boot or cause hard hangs with specific optical drives. The vulnerability is resolved by forcing PIO mode for ATAPI devices on these controllers.

References

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