Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Linux Linux — NFS: Fix a race when updating an existing write
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H L N U N N H 4.7 .0015 4.7 —
AFFECTED
Product Versions Fixed
Linux bd37d6fce184836bd5e7cd90ce40116a4fadaf2a – —
Linux 4.14 – 5.10.242
TIMELINE
Apr 16 Reserved by Linux
Sep 5 Published (CNA: Linux)
Jul 30 RESCORED — CVE-2025-39697 (Linux). CVSS 7.8 → 4.7 (NVD).
Description
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().
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| April 16, 2025 | Reserved | Reserved by Linux |
| September 5, 2025 | Published | Published (CNA: Linux) |
| July 30, 2026 | RESCORED | RESCORED — CVE-2025-39697 (Linux). CVSS 7.8 → 4.7 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | bd37d6fce184836bd5e7cd90ce40116a4fadaf2a | — |
| Linux | Linux | — | 4.14 | 5.10.242 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-39697 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.