CVE-2025-68734
kernel: Linux kernel: Denial of Service due to memory leak in hfcsusb_probe()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · December 24, 2025
Updated · June 30, 2026
Description
A flaw was found in the Linux kernel, specifically within the isdn: mISDN: hfcsusb module. This memory leak vulnerability occurs when the hfcsusb_probe() function fails to properly free allocated memory during an error condition. A local user could exploit this, leading to a continuous loss of system memory. This can result in a Denial of Service (DoS), where the system becomes unstable or unresponsive 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