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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).

PUBLISHED Reserved 2026-05-13 | Published 2026-05-27 | Updated 2026-06-01 | Assigner Linux




HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Product status

Default status
unaffected

82cae269cfa953032fbb8980a7d554d60fb00b17 (git) before 424858f9a048057bb8f834bfe03d18f5e477e747
affected

82cae269cfa953032fbb8980a7d554d60fb00b17 (git) before e73cd5aed6b15e55c1c47577bdb473b5e88d6a69
affected

82cae269cfa953032fbb8980a7d554d60fb00b17 (git) before a954061b334ec67c79ae9d0cadd83fa521396487
affected

82cae269cfa953032fbb8980a7d554d60fb00b17 (git) before 60dab3e2931f3d792438a77a6cb0cb731c43300b
affected

82cae269cfa953032fbb8980a7d554d60fb00b17 (git) before f1af27cec07a9fd0847166bdb23c99e86b05bfdc
affected

82cae269cfa953032fbb8980a7d554d60fb00b17 (git) before 6175d09c23bec4b60860ee9a0170308ff4b56e10
affected

82cae269cfa953032fbb8980a7d554d60fb00b17 (git) before 984a415f019536ea2d24de9010744e5302a9a948
affected

Default status
affected

5.15
affected

Any version before 5.15
unaffected

5.15.209 (semver)
unaffected

6.1.175 (semver)
unaffected

6.6.140 (semver)
unaffected

6.12.86 (semver)
unaffected

6.18.27 (semver)
unaffected

7.0.4 (semver)
unaffected

7.1-rc1 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/424858f9a048057bb8f834bfe03d18f5e477e747

git.kernel.org/...c/e73cd5aed6b15e55c1c47577bdb473b5e88d6a69

git.kernel.org/...c/a954061b334ec67c79ae9d0cadd83fa521396487

git.kernel.org/...c/60dab3e2931f3d792438a77a6cb0cb731c43300b

git.kernel.org/...c/f1af27cec07a9fd0847166bdb23c99e86b05bfdc

git.kernel.org/...c/6175d09c23bec4b60860ee9a0170308ff4b56e10

git.kernel.org/...c/984a415f019536ea2d24de9010744e5302a9a948

cve.org (CVE-2026-46062)

nvd.nist.gov (CVE-2026-46062)

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