CVE-2026-53029

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: prevent uninitialized lcn caused by zero len syzbot reported a uninit-value in ntfsiomapbegin 1. Since runs was not touched yet, runlookupentry immediately fails and returns false, which makes the value of "len" 0...

CVE-2026-53015

In the Linux kernel, the following vulnerability has been resolved: erofs: unify lcn as u64 for 32-bit platforms As sashiko reported 1, lcn was typed as unsigned long or unsigned int sometimes, which is only 32 bits wide on 32-bit platforms, which causes lcn lclusterbits to be truncated at 4 GiB...

CVE-2026-53029

CVE-2026-53029 affects the Linux kernel ntfs3 filesystem. A vulnerability arises from an uninitialized local variable lcn when handling zero-length data during I/O, which could lead to unpredictable behavior and potential information disclosure or DoS. The fix moves the check for a zero value in ...

CVE-2026-53029 fs/ntfs3: prevent uninitialized lcn caused by zero len

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: prevent uninitialized lcn caused by zero len syzbot reported a uninit-value in ntfsiomapbegin 1. Since runs was not touched yet, runlookupentry immediately fails and returns false, which makes the value of "len" 0...

CVE-2026-53027

CVE-2026-53027 affects the Linux kernel's fs/ntfs3 component. A missing load of the vcn0 runs when a compressed/sparse attribute is frame-aligned can leave vcn0 in a different attribute segment than vcn, causing run_lookup_entry() to return SPARSE_LCN and triggering WARN_ON(1). The documented fix...

CVE-2026-53027 fs/ntfs3: fix missing run load for vcn0 in attr_data_get_block_locked()

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: fix missing run load for vcn0 in attrdatagetblocklocked When a compressed or sparse attribute has its clusters frame-aligned, vcn is rounded down to the frame start using cmask, which can result in vcn != vcn0. In this...

CVE-2026-53027

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: fix missing run load for vcn0 in attrdatagetblocklocked When a compressed or sparse attribute has its clusters frame-aligned, vcn is rounded down to the frame start using cmask, which can result in vcn != vcn0. In this...

CVE-2026-53015 erofs: unify lcn as u64 for 32-bit platforms

In the Linux kernel, the following vulnerability has been resolved: erofs: unify lcn as u64 for 32-bit platforms As sashiko reported 1, lcn was typed as unsigned long or unsigned int sometimes, which is only 32 bits wide on 32-bit platforms, which causes lcn lclusterbits to be truncated at 4 GiB...

CVE-2026-53015

The CVE-2026-53015 issue concerns the Linux kernel‑erofs filesystem where the lcn variable was 32‑bit on 32‑bit platforms, risking truncation when calculating large offsets (lcn <

PT-2026-51923

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the ntfs3 file system where a zero value for len can lead to the use of an uninitialized lcn variable. This occurs because when run lookup entry fails and returns fals...

CVE-2026-53015: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: erofs: unify lcn as u64 for 32-bit platforms As sashiko reported 1, lcn was typed as unsigned long or unsigned int sometimes, which is only 32 bits wide on 32-bit platforms, which causes lcn lclusterbits to be truncated at 4 GiB...

CVE-2026-46062 ntfs3: fix integer overflow in run_unpack() volume boundary check

In the Linux kernel, the following vulnerability has been resolved: ntfs3: fix integer overflow in rununpack 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...