CVE-2026-90134ntfs: fix kmap_local_page() usage in compress
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 495e90fa334828d4119061e2726af51d0a0fb4ed before 950e2ecc7aec21af24b05bc661a097a81c670409; 495e90fa334828d4119061e2726af51d0a0fb4ed builds before 6e03fbd5f772ad24ea64f7632e4d0d73184787ca | CNA record |
References
- https://git.kernel.org/stable/c/950e2ecc7aec21af24b05bc661a097a81c670409
- https://git.kernel.org/stable/c/6e03fbd5f772ad24ea64f7632e4d0d73184787ca
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.