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CVE-2022-50263

vdpasim: fix memory leak when freeing IOTLBs

MEDIUM
5.5
CVSS Score
Published: September 15, 2025 at 02:20 PM UTC
Updated: June 17, 2026 at 05:23 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: vdpasim: fix memory leak when freeing IOTLBs After commit bda324fd037a ("vdpasim: control virtqueue support"), vdpasim->iommu became an array of IOTLB, so we should clean the mappings of each free one by one instead of just deleting the ranges in the first IOTLB which may leak maps.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
95%
5.19 ≤ v < 6.0.195.19 ≤ v < 6.1.55.19 ≤ v < 6.26.1 ≤ v < 6.1.55.196.2 rc16.2 rc2bda324fd037a6b0d44da5699574ce741ca161bc4
Vendor states this is fixed in 0b7a04a30eef20e6b24926a45c0ce7906ae85bd6 (fixed)
Vendor states this is fixed in 16b22e27fba6fd816d0dcb98f42cc71f0836c27e (fixed)
Vendor states this is fixed in 54b210c90d2803a9f1c8fd2f0d08e90172e9a06d (fixed)
Vendor states this is fixed in 5.19 (unaffected)
Vendor states this is fixed in 6.0.19 (unaffected)
Vendor states this is fixed in 6.1.5 (unaffected)
Vendor states this is fixed in 6.2 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0b7a04a30eef20e6b24926a45c0ce7906ae85bd6
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/16b22e27fba6fd816d0dcb98f42cc71f0836c27e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/54b210c90d2803a9f1c8fd2f0d08e90172e9a06d

CVSS

5.5MEDIUM[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-401

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