Bug 2525383 (CVE-2026-80598) - CVE-2026-80598 kernel: ntfs3: fix out-of-bounds read in decompress_lznt
Summary: CVE-2026-80598 kernel: ntfs3: fix out-of-bounds read in decompress_lznt
Keywords:
Status: NEW
Alias: CVE-2026-80598
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-08-28 07:42 UTC by OSIDB Bzimport
Modified: 2026-09-03 15:39 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
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Description OSIDB Bzimport 2026-08-28 07:42:11 UTC
In the Linux kernel, the following vulnerability has been resolved:

ntfs3: fix out-of-bounds read in decompress_lznt

decompress_lznt() does not validate array index bounds before accessing
the decompression table. A corrupted NTFS3 image with invalid compressed
data can trigger an out-of-bounds read.

Add index bounds checking to prevent the OOB access.


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