CVE-2026-46062
ntfs3: fix integer overflow in run_unpack() volume boundary check
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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).
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | May 27, 2026 |
| Last Updated | Jun 1, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
82cae269cfa953032fbb8980a7d554d60fb00b17 < 424858f9a048057bb8f834bfe03d18f5e477e747 82cae269cfa953032fbb8980a7d554d60fb00b17 < e73cd5aed6b15e55c1c47577bdb473b5e88d6a69 82cae269cfa953032fbb8980a7d554d60fb00b17 < a954061b334ec67c79ae9d0cadd83fa521396487 82cae269cfa953032fbb8980a7d554d60fb00b17 < 60dab3e2931f3d792438a77a6cb0cb731c43300b 82cae269cfa953032fbb8980a7d554d60fb00b17 < f1af27cec07a9fd0847166bdb23c99e86b05bfdc 82cae269cfa953032fbb8980a7d554d60fb00b17 < 6175d09c23bec4b60860ee9a0170308ff4b56e10 82cae269cfa953032fbb8980a7d554d60fb00b17 < 984a415f019536ea2d24de9010744e5302a9a948
Linux / Linux
5.15
References
git.kernel.org: https://git.kernel.org/stable/c/424858f9a048057bb8f834bfe03d18f5e477e747 git.kernel.org: https://git.kernel.org/stable/c/e73cd5aed6b15e55c1c47577bdb473b5e88d6a69 git.kernel.org: https://git.kernel.org/stable/c/a954061b334ec67c79ae9d0cadd83fa521396487 git.kernel.org: https://git.kernel.org/stable/c/60dab3e2931f3d792438a77a6cb0cb731c43300b git.kernel.org: https://git.kernel.org/stable/c/f1af27cec07a9fd0847166bdb23c99e86b05bfdc git.kernel.org: https://git.kernel.org/stable/c/6175d09c23bec4b60860ee9a0170308ff4b56e10 git.kernel.org: https://git.kernel.org/stable/c/984a415f019536ea2d24de9010744e5302a9a948