netfilter: nf_tables: reject duplicate device on updates (Linux Linux)

CVE-2025-38678
HIGH 7.8

At a glance

Source
NVD
EPSS
EPSS 0.28 % · percentile 21 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: reject duplicate device on updates A chain/flowtable update with duplicated devices in the same batch is possible. Unfortunately, netdev event path only removes the first device that is found, leaving unregistered the hook of the duplicated device. Check if a duplicated device exists in the transaction batch, bail out with EEXIST in such case. WARNING is hit when unregistering the hook: [49042.221275] WARNING: CPU: 4 PID: 8425 at net/netfilter/core.c:340 nf_hook_entry_head+0xaa/0x150 [49042.221375] CPU: 4 UID: 0 PID: 8425 Comm: nft Tainted: G S 6.16.0+ #170 PREEMPT(full) [...] [49042.221382] RIP: 0010:nf_hook_entry_head+0xaa/0x150

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 78d9f48f7f44431a25da2b46b3a8812f6ff2b981 < 0521e694d5b80899fba8695881a6349f9bc538cb ; affected 78d9f48f7f44431a25da2b46b3a8812f6ff2b981 < 4681960bc0f4f8bcc782cbf2fd205f48ad314dfd ; affected 78d9f48f7f44431a25da2b46b3a8812f6ff2b981 < 4ce2a0c3b8497a66cfc25fc7ca3d087258a785d2 ; affected 78d9f48f7f44431a25da2b46b3a8812f6ff2b981 < 3f358a66a04513311668ea4b40f5064e253d8386 ; affected 78d9f48f7f44431a25da2b46b3a8812f6ff2b981 < cf23d531a9d496863aa4c5a0e2f71f0a23f3df3c ; affected 78d9f48f7f44431a25da2b46b3a8812f6ff2b981 < d7615bde541f16517d6790412da6ec46fa8a4c1f
Linux · Linuxaffected 5.8 ; unaffected 0 < 5.8 ; unaffected 5.10.247 ≤ 5.10.* ; unaffected 5.15.197 ≤ 5.15.* ; unaffected 6.1.159 ≤ 6.1.* ; unaffected 6.6.117 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD