CVE-2025-21903

MEDIUM

Linux Kernel 6.7-6.12.19 6.13.0-6.13.7 - Denial of Service via NULL Header Address Handling

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: mctp i3c: handle NULL header address daddr can be NULL if there is no neighbour table entry present, in that case the tx packet should be dropped. saddr will usually be set by MCTP core, but check for NULL in case a packet is transmitted by a different protocol.

References (3)

Core 3

Core References

Patch

https://git.kernel.org/stable/c/d8be54c35aee29d96d1350b1b6f153be4da37c07

Patch

https://git.kernel.org/stable/c/740bf9c9b715cc327d34b1e2d4ee79fcd4c47a56

Patch

https://git.kernel.org/stable/c/cf7ee25e70c6edfac4553d6b671e8b19db1d9573

Scores

CVSS v3 5.5

EPSS 0.0019

EPSS Percentile 8.5%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published

Products (12)

linux/Kernel 6.13.0 - 6.13.7linux

linux/Kernel 6.7.0 - 6.12.19linux

Linux/Linux < 6.7

Linux/Linux 6.12.19 - 6.12.*

Linux/Linux 6.13.7 - 6.13.*

Linux/Linux 6.14

Linux/Linux 6.7

Linux/Linux c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 - 740bf9c9b715cc327d34b1e2d4ee79fcd4c47a56

Linux/Linux c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 - cf7ee25e70c6edfac4553d6b671e8b19db1d9573

Linux/Linux c8755b29b58ec65be17bcb8c40763d2dcb1f1db5 - d8be54c35aee29d96d1350b1b6f153be4da37c07

... and 2 more

Published Apr 01, 2025

Tracked Since Feb 18, 2026