Executive Summary

This vulnerability exists in the Linux kernel's NTFS3 file system driver. Specifically, when the on-disk volume label is loaded, it is converted from UTF-16 to UTF-8 and stored in a fixed-size buffer. However, the conversion function does not add a terminating null character if the converted label exactly fills the buffer. As a result, when the label is later accessed and displayed, the code may read beyond the end of the buffer looking for a string terminator, potentially causing out-of-bounds memory reads.

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Impact Analysis

The vulnerability can lead to out-of-bounds memory reads when accessing the volume label in the NTFS3 driver. This could potentially cause information disclosure or system instability if memory beyond the buffer is accessed. However, the exact impact depends on how the volume label is used and accessed in the system.

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