#VU122176 Memory leak in Linux kernel - CVE-2026-23021
Published: February 2, 2026
Vulnerability identifier: #VU122176
Vulnerability risk: Low
CVSSv4.0: 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-2026-23021
CWE-ID: CWE-401
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to memory leak within the update_eth_regs_async() function in drivers/net/usb/pegasus.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's repository.
External links
- https://git.kernel.org/stable/c/471dfb97599eec74e0476046b3ef8e7037f27b34
- https://git.kernel.org/stable/c/5397ea6d21c35a17707e201a60761bdee00bcc4e
- https://git.kernel.org/stable/c/93f18eaa190374e0f2d253e3b1a65cee19a7abe6
- https://git.kernel.org/stable/c/a40af9a2904a1ab8ce61866ebe2a894ef30754ba
- https://git.kernel.org/stable/c/ac5d92d2826dec51e5d4c6854865bc5817277452
- https://git.kernel.org/stable/c/afa27621a28af317523e0836dad430bec551eb54
- https://git.kernel.org/stable/c/ce6eef731aba23a988decea1df3b08cf978f7b01