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 — smb: client: fix race with concurrent opens in rename(2)
AV AC PR UI S C I A CVSS EPSS %ile KEV
L H L N U N N H 4.7 .0011 1.8 —
AFFECTED
Product Versions Fixed
Linux 78c09634f7dc061a3bd09704cdbebb3762a45cdf – —
Linux 5.13 – 6.1.150
TIMELINE
Apr 16 Reserved by Linux
Sep 16 Published (CNA: Linux)
Jul 30 RESCORED — CVE-2025-39825 (Linux). CVSS 7.8 → 4.7 (NVD).
Description
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix race with concurrent opens in rename(2)
Besides sending the rename request to the server, the rename process
also involves closing any deferred close, waiting for outstanding I/O
to complete as well as marking all existing open handles as deleted to
prevent them from deferring closes, which increases the race window
for potential concurrent opens on the target file.
Fix this by unhashing the dentry in advance to prevent any concurrent
opens on the target.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| April 16, 2025 | Reserved | Reserved by Linux |
| September 16, 2025 | Published | Published (CNA: Linux) |
| July 30, 2026 | RESCORED | RESCORED — CVE-2025-39825 (Linux). CVSS 7.8 → 4.7 (NVD). |
Affected
Affected products and packages — 2 rows
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Linux | Linux | — | 78c09634f7dc061a3bd09704cdbebb3762a45cdf | — |
| Linux | Linux | — | 5.13 | 6.1.150 |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2025-39825 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.