CVE-2026-46243

🚨 CVE-2026-46243 - CIFSwitch Linux Kernel Local Privilege Escalation LPE Local Privilege Escalation vulnerability affecting the Linux Kernel CIFS/SMB client. 📖 Overview CVE-2026-46243 is a Local Privilege Escalation LPE vulnerability within the Linux Kernel's CIFS/SMB client. Improper validation ...

CVE-2026-98127

A flaw was found in the Linux kernel's SMB client. The smb3insertrange function does not properly validate the resulting file size when inserting a range of space into an existing file on a mounted share. A local user can exploit this flaw using a fallocate request to bypass configured file size...

CVE-2026-98126

A flaw was found in the Linux kernel's SMB client. This flaw allows a local user to bypass enforced file-size restrictions and expand files beyond authorized limits. When handling file allocation operations that zero out a range of data without preserving the file's existing size, the kernel fail...

CVE-2026-98125

A flaw was found in the Linux kernel's Server Message Block SMB client. This flaw allows a local user to read stale or inconsistent file data from a mounted network share. When modifying file ranges using insert or collapse operations, offsets that are not aligned with memory page boundaries fail...

CVE-2026-98124

A flaw was found in the Linux kernel's SMB Server Message Block client subsystem. When file modification operations such as fallocate range requests are performed on a mounted network share, the system fails to invalidate the local file system cache FS-Cache. This flaw allows a local user to read...

CVE-2026-93801

A flaw was found in the Linux kernel's SMB Server Message Block client. Certain file information structures allocated on the stack are not zero-initialized, leaving them containing random data when specific fields are not explicitly set. A local user performing file operations on a mounted SMB...

CVE-2026-93794

A flaw was found in the Linux kernel's SMB Server Message Block client. A local user can cause data corruption when performing hole-punching operations on a mounted SMB share. Because dirty memory pages are not flushed prior to punching a hole, uncommitted cached data can subsequently be written...

CVE-2026-93787

A flaw was found in the Linux kernel's SMB Server Message Block client subsystem. When a user lists files in a directory on a mounted share, a malicious SMB server can return a crafted directory entry with an oversized filename length. Because the client fails to verify that the filename remains...

SUSE CVE-2026-98124

In the Linux kernel, the following vulnerability has been resolved: smb/client: invalidate fscache for fallocate range operations smb3zerorange, smb3punchhole, smb3insertrange, and smb3collapserange modify file contents through server-side range operations. These operations discard the affected...

SUSE CVE-2026-98125

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix stale page cache in insert/collapse range smb3insertrange and smb3collapserange use truncatepagecacherange to invalidate the affected page cache. However, if off or oldeof is not page-aligned, the boundary pages a...

SUSE CVE-2026-98126

In the Linux kernel, the following vulnerability has been resolved: smb/client: validate new EOF for zero range When FALLOCFLZERORANGE is used without FALLOCFLKEEPSIZE, smb3zerorange may extend EOF without checking RLIMITFSIZE, allowing the file to grow beyond the caller's file-size limit. Fix th...

SUSE CVE-2026-98127

In the Linux kernel, the following vulnerability has been resolved: smb/client: validate new EOF for insert range smb3insertrange does not check if the new file size isize + len is valid. This allows FALLOCFLINSERTRANGE to bypass RLIMITFSIZE, exceed smaxbytes, or produce a size outside the lofft...

AZL-104253 CVE-2026-98127 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: smb/client: validate new EOF for insert range smb3insertrange does not check if the new file size isize + len is valid. This allows FALLOCFLINSERTRANGE to bypass RLIMITFSIZE, exceed smaxbytes, or produce a size outside the lofft...

DEBIAN-CVE-2026-98127

In the Linux kernel, the following vulnerability has been resolved: smb/client: validate new EOF for insert range smb3insertrange does not check if the new file size isize + len is valid. This allows FALLOCFLINSERTRANGE to bypass RLIMITFSIZE, exceed smaxbytes, or produce a size outside the lofft...

CVE-2026-98127

In the Linux kernel, the following vulnerability has been resolved: smb/client: validate new EOF for insert range smb3insertrange does not check if the new file size isize + len is valid. This allows FALLOCFLINSERTRANGE to bypass RLIMITFSIZE, exceed smaxbytes, or produce a size outside the lofft...

AZL-104277 CVE-2026-98125 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix stale page cache in insert/collapse range smb3insertrange and smb3collapserange use truncatepagecacherange to invalidate the affected page cache. However, if off or oldeof is not page-aligned, the boundary pages a...

CVE-2026-98124

In the Linux kernel, the following vulnerability has been resolved: smb/client: invalidate fscache for fallocate range operations smb3zerorange, smb3punchhole, smb3insertrange, and smb3collapserange modify file contents through server-side range operations. These operations discard the affected...

AZL-104756 CVE-2026-98124 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: smb/client: invalidate fscache for fallocate range operations smb3zerorange, smb3punchhole, smb3insertrange, and smb3collapserange modify file contents through server-side range operations. These operations discard the affected...

DEBIAN-CVE-2026-98125

In the Linux kernel, the following vulnerability has been resolved: smb/client: fix stale page cache in insert/collapse range smb3insertrange and smb3collapserange use truncatepagecacherange to invalidate the affected page cache. However, if off or oldeof is not page-aligned, the boundary pages a...

CVE-2026-98126

In the Linux kernel, the following vulnerability has been resolved: smb/client: validate new EOF for zero range When FALLOCFLZERORANGE is used without FALLOCFLKEEPSIZE, smb3zerorange may extend EOF without checking RLIMITFSIZE, allowing the file to grow beyond the caller's file-size limit. Fix th...