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).
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 82cae269cfa953032fbb8980a7d554d60fb00b17, < 424858f9a048057bb8f834bfe03d18f5e477e747; >= 82cae269cfa953032fbb8980a7d554d60fb00b17, < e73cd5aed6b15e55c1c47577bdb473b5e88d6a69; >= 82cae269cfa953032fbb8980a7d554d60fb00b17, < a954061b334ec67c79ae9d0cadd83fa521396487; >= 82cae269cfa953032fbb8980a7d554d60fb00b17, < 60dab3e2931f3d792438a77a6cb0cb731c43300b; >= 82cae269cfa953032fbb8980a7d554d60fb00b17, < f1af27cec07a9fd0847166bdb23c99e86b05bfdc; >= 82cae269cfa953032fbb8980a7d554d60fb00b17, < 6175d09c23bec4b60860ee9a0170308ff4b56e10; >= 82cae269cfa953032fbb8980a7d554d60fb00b17, < 984a415f019536ea2d24de9010744e5302a9a948 |
| Linux | Linux | 5.15 |
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
Timeline
- Published
- May 27, 2026
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed