CVE-2026-64035
Received Received - Intake

Buffer Type Misconfiguration in Linux Kernel igc Driver

Publication date: 2026-07-19

Last updated on: 2026-07-19

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: igc: set tx buffer type for SMD frames Sashiko pointed out that igc_fpe_init_smd_frame() initializes igc_tx_buffer fields for an SMD skb, but does not set the buffer type: https://sashiko.dev/#/patchset/20260415025226.114115-1-kohei%40enjuk.jp Since igc_tx_buffer entries are reused, a stale XDP or XSK type can remain and make TX completion use the wrong cleanup path. Set the buffer type to IGC_TX_BUFFER_TYPE_SKB.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-07-19
Last Modified
2026-07-19
Generated
2026-07-20
AI Q&A
2026-07-19
EPSS Evaluated
N/A
NVD
CVE-2026-64035
EUVD
EUVD-2026-45608

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
intel igc *

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This vulnerability in the Linux kernel involves the igc network driver not properly setting the buffer type for SMD frames. The igc_tx_buffer entries are reused, and without setting the correct type to IGC_TX_BUFFER_TYPE_SKB, a stale type from previous operations may cause TX completion to use the wrong cleanup path.

Detection Guidance

This vulnerability is specific to the Linux kernel's igc driver and requires code inspection or kernel logs to detect. No direct commands can detect it without examining the kernel source or running affected systems.

Impact Analysis

This vulnerability could lead to incorrect handling of network frames, potentially causing system instability, crashes, or unexpected behavior in network operations. It may affect systems using the igc driver for Intel network interfaces.

Compliance Impact

This vulnerability does not directly affect compliance with GDPR, HIPAA, or similar standards as it is a low-level Linux kernel driver issue related to buffer management in the igc network interface. There is no evidence it impacts data protection, privacy, or security controls required by these regulations.

Mitigation Strategies

Update your Linux kernel to a patched version that includes the fix for CVE-2026-64035. Check your distribution's security advisories for kernel updates addressing this issue.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-64035. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart