CVE-2025-38678

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Source
https://cve.org/CVERecord?id=CVE-2025-38678
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38678.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-38678
Downstream
Related
Published
2025-09-03T13:01:15.799Z
Modified
2026-03-20T12:42:58.326328Z
Summary
netfilter: nf_tables: reject duplicate device on updates
Details

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 nfhookentryhead+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:nfhookentryhead+0xaa/0x150

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/38xxx/CVE-2025-38678.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
78d9f48f7f44431a25da2b46b3a8812f6ff2b981
Fixed
0521e694d5b80899fba8695881a6349f9bc538cb
Fixed
4681960bc0f4f8bcc782cbf2fd205f48ad314dfd
Fixed
4ce2a0c3b8497a66cfc25fc7ca3d087258a785d2
Fixed
3f358a66a04513311668ea4b40f5064e253d8386
Fixed
cf23d531a9d496863aa4c5a0e2f71f0a23f3df3c
Fixed
d7615bde541f16517d6790412da6ec46fa8a4c1f
Fixed
cf5fb87fcdaaaafec55dcc0dc5a9e15ead343973

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-38678.json"