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CVE-2022-48864

vdpa/mlx5: add validation for VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command

MEDIUM
5.5
CVSS Score
Published: July 16, 2024 at 12:25 PM UTC
Updated: August 5, 2026 at 09:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: vdpa/mlx5: add validation for VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command When control vq receives a VIRTIO_NET_CTRL_MQ_VQ_PAIRS_SET command request from the driver, presently there is no validation against the number of queue pairs to configure, or even if multiqueue had been negotiated or not is unverified. This may lead to kernel panic due to uninitialized resource for the queues were there any bogus request sent down by untrusted driver. Tie up the loose ends there.

Affected

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

Linux Kernel· Linux
95%
5.15 ≤ v < 5.15.295.15 ≤ v < 5.16.155.15 ≤ v < 5.175.16 ≤ v < 5.16.155.1552893733f2c5886fc74be6c386d12b59a3f581df
Vendor states this is fixed in 9f6effca75626c7a7c7620dabcb1a254ca530230 (fixed)
Vendor states this is fixed in e7e118416465f2ba8b55007e5b789823e101421e (fixed)
Vendor states this is fixed in ed0f849fc3a63ed2ddf5e72cdb1de3bdbbb0f8eb (fixed)
Vendor states this is fixed in 5.15 (unaffected)
Vendor states this is fixed in 5.15.29 (unaffected)
Vendor states this is fixed in 5.16.15 (unaffected)
Vendor states this is fixed in 5.17 (unaffected)

References (3)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/9f6effca75626c7a7c7620dabcb1a254ca530230
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/e7e118416465f2ba8b55007e5b789823e101421e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ed0f849fc3a63ed2ddf5e72cdb1de3bdbbb0f8eb

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

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

StatusMODIFIED
CWE
CWE-908

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