CVE-2026-99028
kernel: net: xilinx: axienet: Free outstanding DMA buffers on dmaengine stop
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 23, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's Xilinx Axi Ethernet driver. During network interface shutdown, the driver fails to unmap and release active Direct Memory Access (DMA) buffers and suffers from a race condition during teardown. A privileged local user could exploit this vulnerability by repeatedly stopping the network interface, potentially causing a Denial of Service (DoS) through resource exhaustion or memory corruption.
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 · 4.1CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime