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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-46062

ntfs3: fix integer overflow in run_unpack() volume boundary check

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Status
Published
Published
Updated
Assigning organization
Linux

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).

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 82cae269cfa953032fbb8980a7d554d60fb00b17 to < 424858f9a048057bb8f834bfe03d18f5e477e747affected
  • 82cae269cfa953032fbb8980a7d554d60fb00b17 to < e73cd5aed6b15e55c1c47577bdb473b5e88d6a69affected
  • 82cae269cfa953032fbb8980a7d554d60fb00b17 to < a954061b334ec67c79ae9d0cadd83fa521396487affected
  • 82cae269cfa953032fbb8980a7d554d60fb00b17 to < 60dab3e2931f3d792438a77a6cb0cb731c43300baffected
  • 82cae269cfa953032fbb8980a7d554d60fb00b17 to < f1af27cec07a9fd0847166bdb23c99e86b05bfdcaffected
  • 82cae269cfa953032fbb8980a7d554d60fb00b17 to < 6175d09c23bec4b60860ee9a0170308ff4b56e10affected
  • 82cae269cfa953032fbb8980a7d554d60fb00b17 to < 984a415f019536ea2d24de9010744e5302a9a948affected

Linux Linux

Default version status: affected

  • 5.15affected
  • 0 to < 5.15unaffected
  • 5.15.209 to ≤ 5.15.*unaffected
  • 6.1.175 to ≤ 6.1.*unaffected
  • 6.6.140 to ≤ 6.6.*unaffected
  • 6.12.86 to ≤ 6.12.*unaffected
  • 6.18.27 to ≤ 6.18.*unaffected
  • 7.0.4 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References