CVE-2026-98140
Medium
Description
In the Linux kernel, the following vulnerability has been resolved: ntfs: fix kmap_local leak in write_mft_record_nolock() error paths write_mft_record_nolock() maps the MFT record folio with kmap_local_folio(), but the pre_write_mst_fixup() and bio_add_folio() failure paths jump to the error label without unmapping it. kmap_local mappings are stack-ordered per task, so leaking one corrupts the nesting for any outer mapping. Unmap the folio on those error paths too.
SeverityMedium
CVSS5.5
Exploit probability—
Product
Linux Kernel
PublishedSep 25, 2026
First seenSep 25, 2026
How to fix
Update
- linux linux_kernel7.2.7 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 7.1 ≤ v < 7.2.7, 7.3 | 7.2.7 |
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