CVE-2025-38336: Linux kernel · ata: pata_via: Force PIO for ATAPI devices on VT6415/VT6330
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in d29fc02caad7f94b62d56ee1b01c954f9c961ba7 : update Linux kernel when convenient.
Data as of 5 Nov 2026, 21:33 UTC
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
Disclosed: evidence found.
CVE published 10 Jul 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| 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
- git.kernel.org/stable/c/67d66a5e4583fd3bcf13d6f747e571df13cbad51 (opens in a new tab)
- git.kernel.org/stable/c/0d9a48dfa934f43ac839211ae4aeba34f666a9a5 (opens in a new tab)
- git.kernel.org/stable/c/7fc89c218fc96a296a2840b1e37f4e0975f7a108 (opens in a new tab)
- git.kernel.org/stable/c/8212cd92fe40aae6fe5a073bc70e758c42bb4bfc (opens in a new tab)
- git.kernel.org/stable/c/8edfed4439b107d62151ff6c075958d169da3e71 (opens in a new tab)
- git.kernel.org/stable/c/947f9304d3c876c6672b947b80c0ef51161c6d2f (opens in a new tab)
- git.kernel.org/stable/c/bb7212ee4ff086628a2c1c22336d082a87cb893d (opens in a new tab)
- git.kernel.org/stable/c/d29fc02caad7f94b62d56ee1b01c954f9c961ba7 (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/10/msg00008.html (opens in a new tab)
- lists.debian.org/debian-lts-announce/2025/10/msg00007.html (opens in a new tab)