CVE-2026-98486
kernel: net: ena: fix MMIO read buffer leak on probe failure
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · October 18, 2026
Updated · October 20, 2026
Description
A flaw was found in the Linux kernel's Amazon Elastic Network Adapter (ENA) driver. When the driver encounters an error during device initialization, it fails to release an allocated Direct Memory Access (DMA) buffer. A local user capable of triggering repeated device probe failures could exploit this memory leak, resulting in system resource exhaustion and a Denial of Service (DoS).
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 · 1.9CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
CWE-772 · Missing Release of Resource after Effective Lifetime