CVE-2025-38336

MEDIUM

Linux Kernel - Denial of Service via ATAPI DMA on VT6415/VT6330

Title source: llm
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: ata: pata_via: Force PIO for ATAPI devices on VT6415/VT6330 The controller has a hardware bug that can hard hang the system when doing ATAPI DMAs without any trace of what happened. Depending on the device attached, it can also prevent the system from booting. In this case, the system hangs when reading the ATIP from optical media with cdrecord -vvv -atip on an _NEC DVD_RW ND-4571A 1-01 and an Optiarc DVD RW AD-7200A 1.06 attached to an ASRock 990FX Extreme 4, running at UDMA/33. The issue can be reproduced by running the same command with a cygwin build of cdrecord on WinXP, although it requires more attempts to cause it. The hang in that case is also resolved by forcing PIO. It doesn't appear that VIA has produced any drivers for that OS, thus no known workaround exists. HDDs attached to the controller do not suffer from any DMA issues.

Scores

CVSS v3 5.5
EPSS 0.0009
EPSS Percentile 25.7%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (32)
debian/debian_linux 11.0
linux/Kernel 2.6.29 - 5.4.295linux
linux/Kernel 5.11.0 - 5.15.186linux
linux/Kernel 5.16.0 - 6.1.142linux
linux/Kernel 5.5.0 - 5.10.239linux
linux/Kernel 6.13.0 - 6.15.4linux
linux/Kernel 6.2.0 - 6.6.95linux
linux/Kernel 6.7.0 - 6.12.35linux
Linux/Linux < 2.6.29
Linux/Linux 2.6.27.19 - 2.6.28
... and 22 more
Published Jul 10, 2025
Tracked Since Feb 18, 2026