CVE-2025-39730
Description
In the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Mitigation details
CVE-2025-39730 NameCVE-2025-39730 DescriptionIn the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle. SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub…
CVE-2025-39730
| Name | CVE-2025-39730 |
| Description | In the Linux kernel, the following vulnerability has been resolved: NFS: Fix filehandle bounds checking in nfs_fh_to_dentry() The function needs to check the minimal filehandle length before it can access the embedded filehandle. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-4327-1, DLA-4328-1 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| linux (PTS) | bullseye | 5.10.223-1 | vulnerable |
| bullseye (security) | 5.10.257-1 | fixed | |
| bookworm | 6.1.170-3 | fixed | |
| bookworm (security) | 6.1.174-1 | fixed | |
| trixie | 6.12.86-1 | fixed | |
| trixie (security) | 6.12.90-2 | fixed | |
| forky, sid | 7.0.10-1 | fixed | |
| linux-6.1 (PTS) | bullseye (security) | 6.1.174-1~deb11u1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| linux | source | bullseye | 5.10.244-1 | DLA-4327-1 | ||
| linux | source | bookworm | 6.1.148-1 | |||
| linux | source | trixie | 6.12.43-1 | |||
| linux | source | (unstable) | 6.16.3-1 | |||
| linux-6.1 | source | bullseye | 6.1.153-1~deb11u1 | DLA-4328-1 |
Notes
https://git.kernel.org/linus/ef93a685e01a281b5e2a25ce4e3428cf9371a205 (6.17-rc1)
Apply commands
https://git.kernel.org/linus/ef93a685e01a281b5e2a25ce4e3428cf9371a205 (6.17-rc1)OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
AlmaLinux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 8 | Fixed | kernel-rt-debug-modules-4.18.0-553.78.1.rt7.419.el8_10.x86_64.rpm |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 6.12.43-1 |
| sid | Fixed | 6.16.3-1 |
| forky | Fixed | 6.16.3-1 |
| bullseye | Fixed | 5.10.244-1 |
| bookworm | Fixed | 6.1.148-1 |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Rocky Linux Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
References
- https://access.redhat.com/errata/RHSA-2025:19105
- https://www.suse.com/security/cve/CVE-2025-39730.html
- https://errata.rockylinux.org/RLSA-2025:19105
- https://security-tracker.debian.org/tracker/CVE-2025-39730
- https://access.redhat.com/errata/RHSA-2025:17397
- https://bugzilla.redhat.com/2388928
- https://bugzilla.redhat.com/2393731
- https://errata.almalinux.org/8/ALSA-2025-17397.html
- https://access.redhat.com/errata/RHSA-2025:17398
- https://errata.almalinux.org/8/ALSA-2025-17398.html
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.