CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size

Published Jul 25, 2025
·
Updated

In the Linux kernel, the following vulnerability has been resolved:

virtio-net: ensure the received length does not exceed allocated size

In xdplinearizepage, when reading the following buffers from the ring, we forget to check the received length with the true allocate size. This can lead to an out-of-bound read. This commit adds that missing check.

Affected Software

16 affected componentsFixes available
Linux Foundation Linux Kernel
Linux Linux kernel>=4.14<5.4.297
Linux Linux kernel>=5.5<5.10.241
Linux Linux kernel>=5.11<5.15.189
Linux Linux kernel>=5.16<6.1.144
Linux Linux kernel>=6.2<6.6.97
Linux Linux kernel>=6.7<6.12.37
Linux Linux kernel>=6.13<6.15.6
Linux Linux kernel=6.16-rc1
Linux Linux kernel=6.16-rc2
Linux Linux kernel=6.16-rc3
Linux Linux kernel=6.16-rc4
Debian Debian Linux=11.0
Microsoft azl3 kernel 6.6.96.2-1
Microsoft cbl2 kernel 5.15.186.1-1
Microsoft azl3 kernel 6.6.96.2-2

Event History

Jul 25, 2025
CVE Published
via MITRE·12:53 PM
Data Sourced
via MITRE·12:53 PM
DescriptionSeverity
Data Sourced
via NVD·01:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Sep 3, 2025
Data Sourced
via Microsoft·10:12 PM
DescriptionSeverityWeaknessAffected Software
Sep 4, 2025
Updated
via Microsoft·05:12 AM
SeverityAffected Software
Updated
via Microsoft·05:12 AM
DescriptionSeverity

Frequently Asked Questions

1

What is the severity of CVE-2025-38375?

CVE-2025-38375 has been classified with high severity due to potential memory corruption and denial of service risks.

2

How do I fix CVE-2025-38375?

To fix CVE-2025-38375, ensure you update to the latest version of the Linux kernel that includes the patch addressing this vulnerability.

3

What systems are affected by CVE-2025-38375?

CVE-2025-38375 affects all systems running vulnerable versions of the Linux Kernel with virtio-net functionality.

4

What is the impact of CVE-2025-38375?

The impact of CVE-2025-38375 includes potential memory corruption vulnerabilities which could lead to data breaches or service interruptions.

5

Is there a patch available for CVE-2025-38375?

Yes, a patch for CVE-2025-38375 is available in the upstream kernel versions, so users should ensure their systems are updated accordingly.

Contact

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