CVE-2025-39825
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Linux kernel Affected 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 6.17 | Affected | — |
| — | Affected | 6.1.150 |
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 6 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.12.48-1 |
| sid | Fixed | 6.16.5-1 |
| forky | Fixed | 6.16.5-1 |
| bullseye | Fixed | 0 |
| bookworm | Fixed | 6.1.153-1 |
| 11.0 | Affected | — |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Rocky Linux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 8 | Fixed | — |
References
- https://errata.rockylinux.org/RLSA-2025:22387
- https://errata.rockylinux.org/RLSA-2025:22388
- https://access.redhat.com/errata/RHSA-2025:15429
- https://git.kernel.org/stable/c/24b9ed739c8c5b464d983e12cf308982f3ae93c2
- https://git.kernel.org/stable/c/289f945acb20b9b54fe4d13895e44aa58965ddb2
- https://git.kernel.org/stable/c/c9991af5e09924f6f3b3e6996a5e09f9504b4358
- https://git.kernel.org/stable/c/c9e7de284da0be5b44dbe79d71573f9f7f9b144c
- https://git.kernel.org/stable/c/d84291fc7453df7881a970716f8256273aca5747
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
- https://www.suse.com/security/cve/CVE-2025-39825.html
- https://security-tracker.debian.org/tracker/CVE-2025-39825
- https://access.redhat.com/errata/RHSA-2025:22388
- https://bugzilla.redhat.com/2393172
- https://bugzilla.redhat.com/2395792
- https://bugzilla.redhat.com/2397553
- https://bugzilla.redhat.com/2400598
- https://bugzilla.redhat.com/2400795
- https://bugzilla.redhat.com/2402699
- https://errata.almalinux.org/8/ALSA-2025-22388.html
- https://access.redhat.com/errata/RHSA-2025:22387
- https://errata.almalinux.org/8/ALSA-2025-22387.html
CWEs
CWE-362
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.