CVE-2025-38298: 
Linux Kernel vulnerability analysis and mitigation

CVE-2025-38298 is a vulnerability discovered in the Linux kernel, specifically affecting the EDAC/skx_common component. The vulnerability was disclosed on July 10, 2025, and impacts various Linux distributions including Ubuntu and Debian systems (NVD, Ubuntu).

The vulnerability occurs in the Linux kernel's EDAC (Error Detection and Correction) subsystem, specifically in the skxcommon component. The issue arises when unloading and reloading the i10nmedac module, which automatically loads skxedaccommon. The root cause is that the variable 'adxlcomponentcount' in skxedaccommon is not properly reset during module unload, leading to an incorrect count of ADXL components upon reload. This results in an out-of-bounds reference to the ADXL component array, triggering a general protection fault (NVD).

When exploited, the vulnerability causes a general protection fault in the Linux kernel, potentially leading to system instability or crashes. The issue manifests during error injection testing after reloading the i10nm_edac module, affecting systems using the EDAC subsystem (NVD).

The fix involves resetting the 'adxlcomponentcount' variable in the adxlput() function, which is called during the unloading of {skx,i10nm}edac modules. This ensures proper cleanup of component counting when modules are unloaded (NVD).