CVE-2026-43041
kernel: net: qrtr: replace qrtr_tx_flow radix_tree with xarray to fix memory leak
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 1, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's qrtr networking module. This vulnerability occurs when the __radix_tree_create() function allocates intermediate nodes that are not properly reclaimed if subsequent memory allocations fail. This leads to orphaned internal nodes and a memory leak. This memory leak could potentially be exploited to cause a denial of service (DoS) by exhausting system resources.
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