CVE-2026-43194
kernel: net: consume xmit errors of GSO frames
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 6, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's networking subsystem. Specifically, the kernel incorrectly processes transmit errors for Generic Segmentation Offload (GSO) frames. When a single segment within a GSO frame is lost, the system may misinterpret this as a complete loss of the entire frame. This can lead to Transmission Control Protocol (TCP) connections becoming unresponsive, resulting in a Denial of Service (DoS) for network communications.
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-544 · Missing Standardized Error Handling Mechanism