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CVE-2025-38054

nvd nist
Published: Jun 18, 2025Modified: Nov 14, 2025

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5.5
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Exploitability: 1.8 / Impact: 3.6
Source: NVD

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.

Affected (9)

Products: Linux: Linux Kernel
1 product
Linux Kernel
Configuration A
9 vulnerable
Vulnerable SoftwareAffected Versions
Linux
From 6.13 to 6.14.9
From 6.9 to 6.12.31
Version 6.15 rc1
Version 6.15 rc2
Version 6.15 rc3
Version 6.15 rc4
Version 6.15 rc5
Version 6.15 rc6
Version 6.15 rc7

References (3)

Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Patch

Timeline

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