CVE-2025-38425: i2c: tegra: check msg length in SMBUS block read

Published Jul 25, 2025
·
Updated

i2c: tegra: check msg length in SMBUS block read

Affected Software

14 affected componentsFixes available
Linux Kernel
Microsoft cbl2 kernel 5.15.186.1-1
Microsoft azl3 kernel 6.6.96.1-1
Microsoft azl3 kernel 6.6.92.2-2
Linux Linux kernel<6.1.142
Linux Linux kernel>=6.2<6.6.95
Linux Linux kernel>=6.7<6.12.35
Linux Linux kernel>=6.13<6.15.4
Debian Debian Linux=11.0
linux/kernel>=5.18.0<6.1.142
6.1.142
linux/kernel>=6.2.0<6.6.95
6.6.95
linux/kernel>=6.7.0<6.12.35
6.12.35
linux/kernel>=6.13.0<6.15.4
6.15.4
debian/linux
6.1.176-16.1.190-16.12.107-16.12.113-17.2.12-17.2.13-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.1.142
  2. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.6.95
  3. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.12.35
  4. Upgrade

    Upgrade linux/Kernel to a version that resolves this vulnerability.

    Fixed in 6.15.4
  5. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.113-1Fixed in 7.2.12-1Fixed in 7.2.13-1
  6. Compensating control

    In the Linux kernel i2c: tegra SMBUS block-read handling, stop reading when the device-provided message length is 0 or greater than the maximum allowed number of bytes.

Event History

Jul 25, 2025
CVE Published
via MITRE·02:16 PM
Data Sourced
via MITRE·02:16 PM
DescriptionSeverity
Data Sourced
via OSV·02:16 PM
DescriptionSeverityAffected Software
Event
via OSV·03:15 PM
Data Sourced
via NVD·03:15 PM
RemedyDescriptionSeverityAffected Software
Aug 7, 2025
Data Sourced
via Microsoft·12:00 AM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2025-38425?

CVE-2025-38425 has been assessed as having a moderate severity level due to potential denial of service implications.

2

How do I fix CVE-2025-38425?

To fix CVE-2025-38425, ensure that your Linux kernel is updated to the latest version where the vulnerability has been patched.

3

What does CVE-2025-38425 affect?

CVE-2025-38425 affects the SMBUS block read functionality within the Linux kernel.

4

Can CVE-2025-38425 be exploited remotely?

CVE-2025-38425 requires local access to exploit, as it pertains to a device communication protocol.

5

Is there a workaround for CVE-2025-38425?

There are no known workarounds for CVE-2025-38425 other than applying the recommended kernel updates.

Contact

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