CVE-2024-50097: net: fec: don't save PTP state if PTP is unsupported

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2024-11-05 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: net: fec: don't save PTP state if PTP is unsupported Some platforms (such as i.MX25 and i.MX27) do not support PTP, so on these platforms fec_ptp_init() is not called and the related members in fep are not initialized. However, fec_ptp_save_state() is called unconditionally, which causes the kernel to panic. Therefore, add a condition so that fec_ptp_save_state() is not called if PTP is not supported.

Affected products

Linux kernel: from 6.6.55 before 6.6.57; from 6.7 before 6.11.4; from 6.10.4 before 6.11; 6.12-rc1, 6.12-rc2 — fixed in 6.11, 6.11.4, 6.6.57

How to fix

Upgrade to a fixed version: Linux kernel 6.11, 6.11.4, 6.6.57. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2024-50097 or the next vulnerability affects your stack