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CVE-2025-38054

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CVE-2025-38054

Published: Jun 18, 2025

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9 - < 0b7d3e782027ac3b6fec56159e8e348042000aef
affected
ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9 - < fcad74f894ac89790084cc2e1ec61b08220941d1
affected
ef61f5528fca6c3bbb2f8bc002fd1949c9d1f9b9 - < c9e455581e2ba87ee38c126e8dc49a424b9df0cf

Linux

Linux

affected
6.9
unaffected
0 - < 6.9
unaffected
6.12.31 - <= 6.12.*
unaffected
6.14.9 - <= 6.14.*
unaffected
6.15 - <= *

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