CVE-2026-90056
kernel: net: fec: only stop PTP if it was initialized
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 17, 2026
Updated · October 13, 2026
Description
A flaw was found in the Linux kernel's net: fec component. The fec_ptp_stop() function is unconditionally called during device initialization failure or device removal, even if the Precision Time Protocol (PTP) was not previously initialized. This incorrect state transition could lead to system instability or a denial of service related to PTP functionality.
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-909 · Missing Initialization of Resource