PT-2025-37535 · Linux+2 · Linux Kernel+2
Published
2025-09-15
·
Updated
2025-12-02
·
CVE-2023-53171
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the vfio/type1 component of the Linux kernel where an underflow of
locked vm can occur during an exec() operation within a vfio container. This happens when a container is preserved across an exec() call, resulting in a loss of count from existing DMA mappings. Subsequently, unmapping a DMA mapping can cause locked vm to underflow, leading to a failure with an ENOMEM error in the account locked vm function during a subsequent DMA map request. The issue is addressed by saving the memory map (mm) at the time a DMA mapping is created and using that saved mm for adjusting locked vm, rather than re-acquiring the task's mm.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Related Identifiers
Affected Products
Astra Linux
Linux Kernel
Suse