CVE-2022-48696

Data corruption via oversized SPI regmap transfers

Published May 3, 2024 · Updated Aug 5, 2026

Out-of-bounds SPI transfers in Linux 5.16 through 5.19.8 and 6.0-rc1 through 6.0-rc4 allow local users to corrupt data. regmap_get_spi_bus sets max_raw_read and max_raw_write from the SPI transfer limit without subtracting register-address and padding bytes. Reachability requires a local device interface backed by SPI regmap on a controller with a finite message-size limit; affected transfers can corrupt controller or device state and interrupt later I/O.

CVSS severity7.1
High
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds SPI transfers in Linux 5.16 through 5.19.8 and 6.0-rc1 through 6.0-rc4 allow local users to corrupt data. regmap_get_spi_bus sets max_raw_read and max_raw_write from the SPI transfer limit without subtracting register-address and padding bytes. Reachability requires a local device interface backed by SPI regmap on a controller with a finite message-size limit; affected transfers can corrupt controller or device state and interrupt later I/O.

The record

CVE
CVE-2022-48696
Published
May 3, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-120
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=5.16
  2. Affected versionversion=f231ff38b7b23197013b437128d196710fe282da <15ff1f17847c19174b260bd7dd0de33edcebd45e
  3. Affected versionversion=f231ff38b7b23197013b437128d196710fe282da <f5723cfc01932c7a8d5c78dbf7e067e537c91439

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.16; version=f231ff38b7b23197013b437128d196710fe282da <15ff1f17847c19174b260bd7dd0de33edcebd45e; version=f231ff38b7b23197013b437128d196710fe282da <f5723cfc01932c7a8d5c78dbf7e067e537c91439

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
7.1kernel.orgCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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