CVE-2022-48834

Kernel warning via incorrect USB control pipe

Published Jul 16, 2024 · Updated May 11, 2026

Incorrect USB control-transfer handling in Linux 4.20 through 5.17-rc8 allows local users to trigger a kernel warning. The usbtmc_ioctl_request() path always selects usb_rcvctrlpipe(), including for outbound transfers whose request type requires usb_sndctrlpipe(). Reachability requires a USB Test and Measurement Class device and access to its ioctl interface; the upstream report demonstrates a direction-mismatch warning rather than a crash.

CVSS severity7.8
High
EPSS probability0.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect USB control-transfer handling in Linux 4.20 through 5.17-rc8 allows local users to trigger a kernel warning. The usbtmc_ioctl_request() path always selects usb_rcvctrlpipe(), including for outbound transfers whose request type requires usb_sndctrlpipe(). Reachability requires a USB Test and Measurement Class device and access to its ioctl interface; the upstream report demonstrates a direction-mismatch warning rather than a crash.

The record

CVE
CVE-2022-48834
Published
Jul 16, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 16, 2024CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.20
  2. Affected versionversion=658f24f4523e41cda6a389c38b763f4c0cad6fbc <10a805334a11acd547602d6c4cf540a0f6ab5c6e
  3. Affected versionversion=658f24f4523e41cda6a389c38b763f4c0cad6fbc <5f6a2d63c68c12cf61259df7c3527a0e05dce952
  4. Affected versionversion=658f24f4523e41cda6a389c38b763f4c0cad6fbc <700a0715854c1e79a73341724ce4f5bb01abc016
  5. Affected versionversion=658f24f4523e41cda6a389c38b763f4c0cad6fbc <c69aef9db878ab277068a8cc1b4bf0cf309dc2b7
  6. Affected versionversion=658f24f4523e41cda6a389c38b763f4c0cad6fbc <e9b667a82cdcfe21d590344447d65daed52b353b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=4.20; version=658f24f4523e41cda6a389c38b763f4c0cad6fbc <10a805334a11acd547602d6c4cf540a0f6ab5c6e; version=658f24f4523e41cda6a389c38b763f4c0cad6fbc <5f6a2d63c68c12cf61259df7c3527a0e05dce952; version=658f24f4523e41cda6a389c38b763f4c0cad6fbc <700a0715854c1e79a73341724ce4f5bb01abc016; version=658f24f4523e41cda6a389c38b763f4c0cad6fbc <c69aef9db878ab277068a8cc1b4bf0cf309dc2b7; version=658f24f4523e41cda6a389c38b763f4c0cad6fbc <e9b667a82cdcfe21d590344447d65daed52b353b

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
0.0SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:N
5.5Amazon LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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