CVE-2026-64160
netfs: Fix potential for tearing in ->remote_i_size and ->zero_point
Description
In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential for tearing in ->remote_i_size and ->zero_point Fix potential tearing in using ->remote_i_size and ->zero_point by copying i_size_read() and i_size_write() and using the same seqcount as for i_size. We need to make sure that netfslib and the filesystems that use it always hold i_lock whilst updating any of the sizes to prevent i_size_seqcount from getting corrupted.
INFO
Published Date :
July 19, 2026, 4:17 p.m.
Last Modified :
July 19, 2026, 4:17 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-64160
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest stable version.
- Ensure i_lock is held during size updates.
- Verify the integrity of netfslib and file systems.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-64160.
| URL | Resource |
|---|---|
| https://git.kernel.org/stable/c/2c8f4742bb76117d735f92a3932d85239b16c494 | |
| https://git.kernel.org/stable/c/55970f238d495517edc961d55c44c772594d0969 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-64160 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-64160
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-64160 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-64160 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 19, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '4058f742105ecfcbdf99e1139e6c1f74fb8e6db9', 'lessThan': '55970f238d495517edc961d55c44c772594d0969', 'versionType': 'git'}, {'status': 'affected', 'version': '4058f742105ecfcbdf99e1139e6c1f74fb8e6db9', 'lessThan': '2c8f4742bb76117d735f92a3932d85239b16c494', 'versionType': 'git'}], 'programFiles': ['fs/9p/v9fs_vfs.h', 'fs/9p/vfs_inode.c', 'fs/9p/vfs_inode_dotl.c', 'fs/afs/file.c', 'fs/afs/inode.c', 'fs/afs/internal.h', 'fs/afs/write.c', 'fs/netfs/buffered_read.c', 'fs/netfs/buffered_write.c', 'fs/netfs/direct_write.c', 'fs/netfs/misc.c', 'fs/netfs/write_collect.c', 'fs/smb/client/cifsfs.c', 'fs/smb/client/cifssmb.c', 'fs/smb/client/file.c', 'fs/smb/client/inode.c', 'fs/smb/client/readdir.c', 'fs/smb/client/smb2ops.c', 'fs/smb/client/smb2pdu.c', 'include/linux/netfs.h'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.18'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.18', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '7.0.11', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/9p/v9fs_vfs.h', 'fs/9p/vfs_inode.c', 'fs/9p/vfs_inode_dotl.c', 'fs/afs/file.c', 'fs/afs/inode.c', 'fs/afs/internal.h', 'fs/afs/write.c', 'fs/netfs/buffered_read.c', 'fs/netfs/buffered_write.c', 'fs/netfs/direct_write.c', 'fs/netfs/misc.c', 'fs/netfs/write_collect.c', 'fs/smb/client/cifsfs.c', 'fs/smb/client/cifssmb.c', 'fs/smb/client/file.c', 'fs/smb/client/inode.c', 'fs/smb/client/readdir.c', 'fs/smb/client/smb2ops.c', 'fs/smb/client/smb2pdu.c', 'include/linux/netfs.h'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: netfs: Fix potential for tearing in ->remote_i_size and ->zero_point Fix potential tearing in using ->remote_i_size and ->zero_point by copying i_size_read() and i_size_write() and using the same seqcount as for i_size. We need to make sure that netfslib and the filesystems that use it always hold i_lock whilst updating any of the sizes to prevent i_size_seqcount from getting corrupted. Added Reference https://git.kernel.org/stable/c/2c8f4742bb76117d735f92a3932d85239b16c494 Added Reference https://git.kernel.org/stable/c/55970f238d495517edc961d55c44c772594d0969