Patchlage

CVE-2026-90134

CVE CVE-2026-90134EUVD EUVD-2026-81727Published 2026-09-17T16:06:33.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: ntfs: fix kmap_local_page() usage in compress Several compressed I/O paths discard the address returned by kmap_local_page() and later access or unmap the page using page_address(). This is invalid for highmem pages, and local mappings must also be unmapped using the address returned by kmap_local_page(). Map each destination page in ntfs_decompress() only while producing the current sub-block. Use memcpy_from_page(), memcpy_to_page(), and memzero_page() for the other page accesses. Remove unnecessary local mappings from ntfs_write_cb(), where pages are accessed through the vmap() mapping.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

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Carried in the product catalogue

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