CVE-2026-74622
kernel: net: atlantic: free RX pages of consumed but not refilled buffers
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · August 22, 2026
Updated · August 25, 2026
Description
A flaw was found in the Linux kernel's 'atlantic' network driver. The aq_ring_rx_deinit() function, responsible for deinitializing receive (RX) buffers, fails to properly free pages and their associated Direct Memory Access (DMA) mappings for buffers that have been consumed but not yet refilled. This oversight leads to a memory leak each time a network interface utilizing this driver is brought down. Repeated occurrences of this memory leak could eventually result in a Denial of Service (DoS) due to resource exhaustion.
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-772 · Missing Release of Resource after Effective Lifetime