EUVD-2026-103940

In the Linux kernel, the following vulnerability has been resolved: smb: client: discard post-EOF pagecache when extending a file via zero range smb3zerorange removed the pagecache only for the range being zeroed, so when it extends the file the folio straddling the old EOF - which may hold data...

CVE-2026-98686 smb: client: discard post-EOF pagecache when extending a file via zero range

In the Linux kernel, the following vulnerability has been resolved: smb: client: discard post-EOF pagecache when extending a file via zero range smb3zerorange removed the pagecache only for the range being zeroed, so when it extends the file the folio straddling the old EOF - which may hold data...

CVE-2026-98686 smb: client: discard post-EOF pagecache when extending a file via zero range

In the Linux kernel, the following vulnerability has been resolved: smb: client: discard post-EOF pagecache when extending a file via zero range smb3zerorange removed the pagecache only for the range being zeroed, so when it extends the file the folio straddling the old EOF - which may hold data...

CVE-2026-98685 smb: client: discard post-EOF pagecache when extending a file via clone range

In the Linux kernel, the following vulnerability has been resolved: smb: client: discard post-EOF pagecache when extending a file via clone range cifsremapfilerange discarded the pagecache only for the folios overlapping the destination region, so when a clone extends the file the folio straddlin...

CVE-2026-98685

The Linux kernel contains a vulnerability in the smb client where the cifs_remap_file_range() function fails to correctly discard the pagecache when extending a file via a clone range. Specifically, folios straddling the old EOF (which might contain data dirtied past the EOF via an mmap ) were no...

EUVD-2026-103939

In the Linux kernel, the following vulnerability has been resolved: smb: client: discard post-EOF pagecache when extending a file via clone range cifsremapfilerange discarded the pagecache only for the folios overlapping the destination region, so when a clone extends the file the folio straddlin...

CVE-2026-98685 smb: client: discard post-EOF pagecache when extending a file via clone range

In the Linux kernel, the following vulnerability has been resolved: smb: client: discard post-EOF pagecache when extending a file via clone range cifsremapfilerange discarded the pagecache only for the folios overlapping the destination region, so when a clone extends the file the folio straddlin...

CVE-2026-98684 smb: client: flush and commit data before querying allocated ranges

In the Linux kernel, the following vulnerability has been resolved: smb: client: flush and commit data before querying allocated ranges The mode 0 / FALLOCFLKEEPSIZE fallocate emulation for small interior ranges in smb3simplefallocaterange issues FSCTLQUERYALLOCATEDRANGES and zero-fills any...

CVE-2026-98684 smb: client: flush and commit data before querying allocated ranges

In the Linux kernel, the following vulnerability has been resolved: smb: client: flush and commit data before querying allocated ranges The mode 0 / FALLOCFLKEEPSIZE fallocate emulation for small interior ranges in smb3simplefallocaterange issues FSCTLQUERYALLOCATEDRANGES and zero-fills any...

EUVD-2026-103938

In the Linux kernel, the following vulnerability has been resolved: smb: client: flush and commit data before querying allocated ranges The mode 0 / FALLOCFLKEEPSIZE fallocate emulation for small interior ranges in smb3simplefallocaterange issues FSCTLQUERYALLOCATEDRANGES and zero-fills any...

CVE-2026-98684

The Linux kernel contains a vulnerability in the smb3_simple_fallocate_range() function's emulation of mode 0 / FALLOC_FL_KEEP_SIZE for small interior ranges. The issue arises because the system issues FSCTL_QUERY_ALLOCATED_RANGES and zero-fills reported unallocated holes to force block allocatio...

CVE-2026-98683 smb: client: flush dirty data before zeroing a range

In the Linux kernel, the following vulnerability has been resolved: smb: client: flush dirty data before zeroing a range smb3zerorange emulates FALLOCFLZERORANGE by invalidating the page cache over the target range with truncatepagecacherange and then issuing FSCTLSETZERODATA to the server. Dirty...

CVE-2026-98683 smb: client: flush dirty data before zeroing a range

In the Linux kernel, the following vulnerability has been resolved: smb: client: flush dirty data before zeroing a range smb3zerorange emulates FALLOCFLZERORANGE by invalidating the page cache over the target range with truncatepagecacherange and then issuing FSCTLSETZERODATA to the server. Dirty...

EUVD-2026-103937

In the Linux kernel, the following vulnerability has been resolved: smb: client: flush dirty data before zeroing a range smb3zerorange emulates FALLOCFLZERORANGE by invalidating the page cache over the target range with truncatepagecacherange and then issuing FSCTLSETZERODATA to the server. Dirty...

CVE-2026-98683

The Linux kernel contains a vulnerability in the SMB client component. The smb3_zero_range() function, which emulates FALLOC_FL_ZERO_RANGE, fails to unconditionally flush dirty data before invalidating the page cache and issuing FSCTL_SET_ZERO_DATA to the server. This occurs specifically for inte...

CVE-2026-98682 smb: client: drain and invalidate before server-side copy/clone

In the Linux kernel, the following vulnerability has been resolved: smb: client: drain and invalidate before server-side copy/clone cifsfilecopychunkrange and the clone FICLONE path of cifsremapfilerange do not serialise the destination page cache against the server-side copy the way the other...

CVE-2026-98682

The Linux kernel contains a vulnerability in the SMB client where cifs_file_copychunk_range() and the FICLONE path of cifs_remap_file_range() fail to properly serialize the destination page cache during server-side copy/clone operations. Specifically, these functions do not hold the invalidate_lo...

CVE-2026-98682 smb: client: drain and invalidate before server-side copy/clone

In the Linux kernel, the following vulnerability has been resolved: smb: client: drain and invalidate before server-side copy/clone cifsfilecopychunkrange and the clone FICLONE path of cifsremapfilerange do not serialise the destination page cache against the server-side copy the way the other...

EUVD-2026-103936

In the Linux kernel, the following vulnerability has been resolved: smb: client: drain and invalidate before server-side copy/clone cifsfilecopychunkrange and the clone FICLONE path of cifsremapfilerange do not serialise the destination page cache against the server-side copy the way the other...

CVE-2026-98681

The Linux kernel contains a race condition in the smb client where the invalidHandle, swapfile, oplock_break_cancelled, offload, and status_file_deleted fields are stored within the same bitfield byte of struct cifsFileInfo . Because these fields are updated in different concurrent code paths and...