netfs: Fix potential for tearing in ->remote_i_size and ->zero_point
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.
CVE-2026-64160
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-64160
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"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"
}
]- Related CVEs
- CVE-2026-64160
Source reference:
/cveMetadata/cveId
Publisher severity
critical
Source reference: /containers/cna/metrics
- Event
- #40966 · Revision 1
- Added to Heist Feed
- Publisher date