PT-2026-51921 · Linux+2 · Linux Kernel+2

CVE-2026-53027

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Published

2026-06-24

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Updated

2026-09-07

CVSS v3.1

5.5

Medium

VectorAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description An issue exists in the NTFS3 file system where the attr data get block locked() function fails to load runs for vcn0 when it resides in a different attribute segment than vcn. This occurs when a compressed or sparse attribute has clusters that are frame-aligned, causing vcn to be rounded down using cmask, which can lead to vcn and vcn0 being in different segments. Consequently, the run lookup entry() function returns SPARSE LCN for vcn0 because its segment was not loaded into the in-memory run list, triggering a WARN ON(1) kernel warning.
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

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Related Identifiers

AZL-90552
CVE-2026-53027
ECHO-F204-0AF3-EF3C
USN-8566-1
USN-8568-1
USN-8569-1
USN-8593-1
USN-8603-1
USN-8618-1
USN-8663-1
USN-8664-1
USN-8728-1

Affected Products

Linuxmint
Linux Kernel
Ubuntu