CVE-2025-38054

ptp: ocp: Limit signal/freq counts in summary output functions

Description

In the Linux kernel, the following vulnerability has been resolved: ptp: ocp: Limit signal/freq counts in summary output functions The debugfs summary output could access uninitialized elements in the freq_in[] and signal_out[] arrays, causing NULL pointer dereferences and triggering a kernel Oops (page_fault_oops). This patch adds u8 fields (nr_freq_in, nr_signal_out) to track the number of initialized elements, with a maximum of 4 per array. The summary output functions are updated to respect these limits, preventing out-of-bounds access and ensuring safe array handling. Widen the label variables because the change confuses GCC about max length of the strings.

N/A

CVSS

Severity:

EPSS 0.02%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/0b7d3e782027ac3b6fec56159e8e348042000aef
https://git.kernel.org/stable/c/fcad74f894ac89790084cc2e1ec61b08220941d1
https://git.kernel.org/stable/c/c9e455581e2ba87ee38c126e8dc49a424b9df0cf

Frequently Asked Questions

What is the severity of CVE-2025-38054?: CVE-2025-38054 has not yet been assigned a CVSS score.
How to fix CVE-2025-38054?: To fix CVE-2025-38054, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-38054 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-38054 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-38054?: CVE-2025-38054 affects Linux Linux, Linux Linux.

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