SB2026092849 - Improper resource shutdown or release in Linux kernel ntfs

Description

This security bulletin contains information about 1 vulnerability.

1) Improper resource shutdown or release (CVE-ID: CVE-2026-98140)

CWE-ID: CWE-404 - Improper Resource Shutdown or Release

CVSSv4: 2 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N]

The vulnerability allows a local user to corrupt kernel kmap_local mapping nesting.

The vulnerability exists due to improper resource management in write_mft_record_nolock() when handling error paths during MFT record writes. A local user can trigger an error while writing an MFT record to corrupt kernel kmap_local mapping nesting.

The issue occurs when pre_write_mst_fixup() or bio_add_folio() fails after the MFT record folio has been mapped.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/5d7f7bf8fba8cf563b42b44aa4ab3d9928ac480c
• https://git.kernel.org/stable/c/cf06dcd572845723821b54a608fc2da995c3c8e2