PT-2025-46650 · Linux+2 · Linux Kernel+2
Published
2025-11-12
·
Updated
2026-05-07
·
CVE-2025-40172
CVSS v2.0
4.6
Medium
| Vector | AV:L/AC:L/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a flaw within the
qaic accelerator. Specifically, the find and map user pages() function does not properly handle scenarios where a zero-sized ALP (Asynchronous Large Page) is provided by the user or when a DMA transfer continuation is requested after all bytes have been transferred. This can lead to a general protection fault when encode addr size pairs() attempts to access an unallocated sgt (scatter-gather table). The issue occurs when find and map user pages() returns 0 before allocating the sgt or setting fields within the dma xfer structure.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Buffer Overflow
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Weakness Enumeration
Related Identifiers
Affected Products
Linuxmint
Linux Kernel
Ubuntu