CVEvulnerability

CVE-2025-39825

4.7 MEDIUM Published 2025-09-16 Modified 2026-10-19 Official page ↗
Status
Modified
Published
2025-09-16
Last modified
2026-10-19
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-362

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.

Affected configurations

• linux linux kernel (>= 5.13 < 6.1.150) • linux linux kernel (>= 6.2 < 6.6.104) • linux linux kernel (>= 6.7 < 6.12.45) • linux linux kernel (>= 6.13 < 6.16.5) • linux linux kernel 6.17 • debian debian linux 11.0

Related

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References