CVE-2026-46062In 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` us…
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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).
- CVSS
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-190
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linux linux_kernel linux:linux_kernel | from 5.15 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.86; from 6.13 before 6.18.27; from 6.19 before 7.0.4 | NVD |
References
- https://git.kernel.org/stable/c/424858f9a048057bb8f834bfe03d18f5e477e747patch
- https://git.kernel.org/stable/c/60dab3e2931f3d792438a77a6cb0cb731c43300bpatch
- https://git.kernel.org/stable/c/6175d09c23bec4b60860ee9a0170308ff4b56e10patch
- https://git.kernel.org/stable/c/984a415f019536ea2d24de9010744e5302a9a948patch
- https://git.kernel.org/stable/c/a954061b334ec67c79ae9d0cadd83fa521396487patch
- https://git.kernel.org/stable/c/e73cd5aed6b15e55c1c47577bdb473b5e88d6a69patch
- https://git.kernel.org/stable/c/f1af27cec07a9fd0847166bdb23c99e86b05bfdcpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.