CVE-2026-46062
ntfs3: fix integer overflow in run_unpack() volume boundary check
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
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).
Timeline
- CVE published
- Record last updated
Affected versions
- Linux Linux
Version range not reported
- Linux Linux
5.15
References 7
git.kernel.org
- stable/c/424858f9a048057bb8f834bfe03d18f5e477e747
- stable/c/e73cd5aed6b15e55c1c47577bdb473b5e88d6a69
- stable/c/a954061b334ec67c79ae9d0cadd83fa521396487
- stable/c/60dab3e2931f3d792438a77a6cb0cb731c43300b
- stable/c/f1af27cec07a9fd0847166bdb23c99e86b05bfdc
- stable/c/6175d09c23bec4b60860ee9a0170308ff4b56e10
- stable/c/984a415f019536ea2d24de9010744e5302a9a948