PT-2024-7731 · Linux+5 · Linux Kernel+5

Thomas Gleixner · Published 2024-02-19 · Updated 2025-09-29 · CVE-2024-26803

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The vulnerability is related to the Linux kernel's virtual Ethernet (veth) component. When XDP (eXpress Data Path) is enabled, veth sets the NETIF F GRO flag automatically because both features use the same NAPI machinery. However, the logic to clear this flag is skipped when the device is brought down, which can lead to a stray GRO flag being set when XDP is disabled and then the device is brought up. This can cause the system to crash or hang when features are synchronized, either by the user via ethtool or by a peer changing its configuration.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Improper Initialization

Weakness Enumeration

CWE-459

CWE-665

Related Identifiers

ALSA-2025_12746

ALSA-2025_12752

ALSA-2025_12753

ALSA-2025_16880

BDU:2024-09198

CVE-2024-26803

DSA-5658-1

INFSA-2024_9315

RHSA-2024:9315

RHSA-2024_9315

USN-6820-1

USN-6820-2

USN-6821-1

USN-6821-2

USN-6821-3

USN-6821-4

USN-6828-1

USN-6871-1

USN-6892-1

USN-6895-1

USN-6895-2

USN-6895-3

USN-6895-4

USN-6900-1

USN-6919-1

Affected Products

Astra Linux

Linuxmint

Linux Kernel

Red Hat

Red Os

Ubuntu

References · 491

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26803.json · Exploit
• https://ubuntu.com/security/CVE-2023-52642 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35984 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26698 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26999 · Vendor Advisory
• https://ubuntu.com/security/CVE-2023-52644 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26817 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26601 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26751 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35811 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-26973 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-27044 · Vendor Advisory
• https://ubuntu.com/security/CVE-2024-35988 · Vendor Advisory
• https://git.kernel.org/stable/c/fe9f801355f0b47668419f30f1fac1cf4539e736 · Patch
• https://ubuntu.com/security/CVE-2024-26602 · Vendor Advisory