{"id":"CVE-2026-90134","published":"2026-09-17T17:17:05.950","lastModified":"2026-09-17T17:17:05.950","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nntfs: fix kmap_local_page() usage in compress\n\nSeveral compressed I/O paths discard the address returned by\nkmap_local_page() and later access or unmap the page using page_address().\nThis is invalid for highmem pages, and local mappings must also be unmapped\nusing the address returned by kmap_local_page().\n\nMap each destination page in ntfs_decompress() only while producing the\ncurrent sub-block. Use memcpy_from_page(), memcpy_to_page(), and\nmemzero_page() for the other page accesses. Remove unnecessary local\nmappings from ntfs_write_cb(), where pages are accessed through the vmap()\nmapping.","cvssScore":null,"cvssSeverity":null,"cvssVector":null,"cwes":[],"vendors":[],"products":[],"references":[{"url":"https://git.kernel.org/stable/c/6e03fbd5f772ad24ea64f7632e4d0d73184787ca","tags":[]},{"url":"https://git.kernel.org/stable/c/950e2ecc7aec21af24b05bc661a097a81c670409","tags":[]}],"exploitRefs":[],"hasPoc":false,"ai":null}