Memory leak in Linux kernel - CVE-2026-46038
Published: May 28, 2026
Vulnerability identifier: #VU132446
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2026-46038
CWE-ID: CWE-401
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a remote attacker to cause a denial of service.
The vulnerability exists due to improper resource management in ctrl_cmd_bye() when processing a BYE packet from a node. A remote attacker can send a BYE packet to trigger a memory leak and cause a denial of service.
How to mitigate CVE-2026-46038
Install security update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/076e4b162d6caba12c229e7f262df5b6881162b0
- https://git.kernel.org/stable/c/154fc7fe3f62c46891c3c4302f4b5b5391c932e6
- https://git.kernel.org/stable/c/65932f5102bb5377db36c8a4f0c28179a1967a9a
- https://git.kernel.org/stable/c/68efba36446a7774ea5b971257ade049272a07ac
- https://git.kernel.org/stable/c/ff78ed177a66763085e3214d6fbe13ca8f0b3f11