Improper control of a resource through its lifetime in Linux kernel - CVE-2026-64175
Published: July 20, 2026
Vulnerability identifier: #VU138456
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2026-64175
CWE-ID: CWE-664
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local attacker to cause a denial of service.
The vulnerability exists due to improper state management in iwl_mld_tx_from_txq() when processing transmit queues during a firmware restart. A local attacker can trigger high-throughput network traffic while the firmware is restarting to cause a denial of service.
The issue can lead to excessive CPU consumption and memory pressure from rapid skb allocation churn and slab fragmentation after a firmware crash.
How to mitigate CVE-2026-64175
Install security update from vendor's repository.