CVE-2026-46062 Details
Description
In the Linux kernel, the following vulnerability has been resolved: ntfs3: fix integer overflow in run_unpack() volume boundary check The volume boundary check `lcn + len > sbi->used.bitmap.nbits` uses raw addition which can wrap around for large lcn and len values, bypassing the validation. Use check_add_overflow() as is already done for the adjacent prev_lcn + dlcn and vcn64 + len checks added by commit 3ac37e100385 ("ntfs3: Fix integer overflow in run_unpack()"). Found by fuzzing with a source-patched harness (LibAFL + QEMU).
An integer overflow vulnerability has been identified in the NTFS3 file system implementation of the Linux kernel. The issue arises in the volume boundary check within the 'run_unpack()' function, where raw addition of large values can wrap around, bypassing necessary validation. This vulnerability affects several versions of the Linux kernel.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed. Instructions for downloading the patched version are available on the official Linux kernel website.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/424858f9a048057bb8f834bfe03d18f5e477e747 | kernel.org | Patch |
| https://git.kernel.org/stable/c/60dab3e2931f3d792438a77a6cb0cb731c43300b | kernel.org | Patch |
| https://git.kernel.org/stable/c/6175d09c23bec4b60860ee9a0170308ff4b56e10 | kernel.org | Patch |
| https://git.kernel.org/stable/c/984a415f019536ea2d24de9010744e5302a9a948 | kernel.org | Patch |
| https://git.kernel.org/stable/c/a954061b334ec67c79ae9d0cadd83fa521396487 | kernel.org | Patch |
| https://git.kernel.org/stable/c/e73cd5aed6b15e55c1c47577bdb473b5e88d6a69 | kernel.org | Patch |
| https://git.kernel.org/stable/c/f1af27cec07a9fd0847166bdb23c99e86b05bfdc | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-190 | Integer Overflow or Wraparound | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.15, < 5.15.209 >= 5.16, < 6.1.175 >= 6.2, < 6.6.140 >= 6.7, < 6.12.86 >= 6.13, < 6.18.27 >= 6.19, < 7.0.4 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Jun 16, 2026 | Initial Analysis | [email protected] |
| Jun 1, 2026 | CVE Modified | kernel.org |
| May 30, 2026 | CVE Modified | kernel.org |
| May 27, 2026 | New CVE Received | kernel.org |