netfilter: nf_tables: reject duplicate device on updates
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
CVE-2025-38678
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2025-38678
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "78d9f48f7f44431a25da2b46b3a8812f6ff2b981",
"lessThan": "0521e694d5b80899fba8695881a6349f9bc538cb",
"versionType": "git"
},
{
"status": "affected",
"version": "78d9f48f7f44431a25da2b46b3a8812f6ff2b981",
"lessThan": "4681960bc0f4f8bcc782cbf2fd205f48ad314dfd",
"versionType": "git"
},
{
"status": "affected",
"version": "78d9f48f7f44431a25da2b46b3a8812f6ff2b981",
"lessThan": "4ce2a0c3b8497a66cfc25fc7ca3d087258a785d2",
"versionType": "git"
},
{
"status": "affected",
"version": "78d9f48f7f44431a25da2b46b3a8812f6ff2b981",
"lessThan": "3f358a66a04513311668ea4b40f5064e253d8386",
"versionType": "git"
},
{
"status": "affected",
"version": "78d9f48f7f44431a25da2b46b3a8812f6ff2b981",
"lessThan": "cf23d531a9d496863aa4c5a0e2f71f0a23f3df3c",
"versionType": "git"
},
{
"status": "affected",
"version": "78d9f48f7f44431a25da2b46b3a8812f6ff2b981",
"lessThan": "d7615bde541f16517d6790412da6ec46fa8a4c1f",
"versionType": "git"
},
{
"status": "affected",
"version": "78d9f48f7f44431a25da2b46b3a8812f6ff2b981",
"lessThan": "cf5fb87fcdaaaafec55dcc0dc5a9e15ead343973",
"versionType": "git"
}
],
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "5.8"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "5.8",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "5.10.247",
"versionType": "semver",
"lessThanOrEqual": "5.10.*"
},
{
"status": "unaffected",
"version": "5.15.197",
"versionType": "semver",
"lessThanOrEqual": "5.15.*"
},
{
"status": "unaffected",
"version": "6.1.159",
"versionType": "semver",
"lessThanOrEqual": "6.1.*"
},
{
"status": "unaffected",
"version": "6.6.117",
"versionType": "semver",
"lessThanOrEqual": "6.6.*"
},
{
"status": "unaffected",
"version": "6.12.59",
"versionType": "semver",
"lessThanOrEqual": "6.12.*"
},
{
"status": "unaffected",
"version": "6.16.2",
"versionType": "semver",
"lessThanOrEqual": "6.16.*"
},
{
"status": "unaffected",
"version": "6.17",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"net/netfilter/nf_tables_api.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2025-38678
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #30609 · Revision 1
- Added to Heist Feed
- Publisher date