CVE-2025-38428: 
Linux Kernel vulnerability analysis and mitigation

CVE-2025-38428 is a vulnerability discovered in the Linux kernel's input subsystem, specifically in the ims-pcu driver's firmware flashing functionality. The vulnerability was disclosed on July 25, 2025, affecting the ims_pcu_flash_firmware() function (NVD).

The vulnerability stems from insufficient validation of the 'len' variable that comes from firmware during the firmware flashing process. When performing a memory copy operation using 'memcpy(fragment->data, rec->data, len)', if the 'len' value is too large, it could lead to memory corruption. The vulnerability has been assigned a CVSS v3.1 base score of 5.5 (Moderate) with the vector string CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H (Red Hat).

The vulnerability can result in memory corruption in the Linux kernel when processing firmware data through the ims-pcu driver. This could potentially lead to system instability or denial of service conditions (NVD).

Red Hat has confirmed that several versions of their products are not affected, including Red Hat Enterprise Linux versions 6, 7, 8, 9, and their respective kernel-rt variants (Red Hat).