NFS: Fix a race when updating an existing write
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix a race when updating an existing write After nfs_lock_and_join_requests() tests for whether the request is still attached to the mapping, nothing prevents a call to nfs_inode_remove_request() from succeeding until we actually lock the page group. The reason is that whoever called nfs_inode_remove_request() doesn't necessarily have a lock on the page group head. So in order to avoid races, let's take the page group lock earlier in nfs_lock_and_join_requests(), and hold it across the removal of the request in nfs_inode_remove_request().
CVE-2025-39697
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-2025-39697
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": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
"lessThan": "0ff42a32784e0f2cb46a46da8e9f473538c13e1b",
"versionType": "git"
},
{
"status": "affected",
"version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
"lessThan": "f230d40147cc37eb3aef4d50e2e2c06ea73d9a77",
"versionType": "git"
},
{
"status": "affected",
"version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
"lessThan": "c32e3c71aaa1c1ba05da88605e2ddd493c58794f",
"versionType": "git"
},
{
"status": "affected",
"version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
"lessThan": "181feb41f0b268e6288bf9a7b984624d7fe2031d",
"versionType": "git"
},
{
"status": "affected",
"version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
"lessThan": "92278ae36935a54e65fef9f8ea8efe7e80481ace",
"versionType": "git"
},
{
"status": "affected",
"version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
"lessThan": "202a3432d21ac060629a760fff3b0a39859da3ea",
"versionType": "git"
},
{
"status": "affected",
"version": "bd37d6fce184836bd5e7cd90ce40116a4fadaf2a",
"lessThan": "76d2e3890fb169168c73f2e4f8375c7cc24a765e",
"versionType": "git"
}
],
"programFiles": [
"fs/nfs/pagelist.c",
"fs/nfs/write.c",
"include/linux/nfs_page.h"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "4.14"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "4.14",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.242",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.191",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.150",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.104",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.44",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.16.4",
"versionType": "semver",
"lessThanOrEqual": "6.16.*"
},
{
"status": "unaffected",
"version": "6.17",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"fs/nfs/pagelist.c",
"fs/nfs/write.c",
"include/linux/nfs_page.h"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-39697
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #27058 · Revision 1
- Added to Heist Feed
- Publisher date