netfilter: nf_dup_netdev: add nf_dev_xmit_recursion*() helpers and use them
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_dup_netdev: add nf_dev_xmit_recursion*() helpers and use them Update nft_dup and nft_fwd to use the nf_dev_xmit_recursion() helpers. This patch also disables BH when transmitting the skb to address a possible migration to different CPU leading to imbalanced decrementation of the recursion counters. This is modeled after Florian Westphal's dev_xmit_recursion*() API available since commit 97cdcf37b57e ("net: place xmit recursion in softnet data") according to its current state in the tree.
CVE-2026-74260
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-2026-74260
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": "f37ad91270397a6d053e8623bdb3cf79859691d2",
"lessThan": "53fb46cf933dc4361c1a72491e247841d0b0fc85",
"versionType": "git"
},
{
"status": "affected",
"version": "f37ad91270397a6d053e8623bdb3cf79859691d2",
"lessThan": "edf234f71fb327792196f813048ab8f5bd3bb712",
"versionType": "git"
},
{
"status": "affected",
"version": "f37ad91270397a6d053e8623bdb3cf79859691d2",
"lessThan": "2354e975932dabb06fad239f07a3b68fd1809737",
"versionType": "git"
}
],
"programFiles": [
"include/net/netfilter/nf_dup_netdev.h",
"net/netfilter/nf_dup_netdev.c",
"net/netfilter/nft_fwd_netdev.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6.16"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "6.16",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "6.18.57",
"versionType": "semver",
"lessThanOrEqual": "6.18.*"
},
{
"status": "unaffected",
"version": "7.1.5",
"versionType": "semver",
"lessThanOrEqual": "7.1.*"
},
{
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"include/net/netfilter/nf_dup_netdev.h",
"net/netfilter/nf_dup_netdev.c",
"net/netfilter/nft_fwd_netdev.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-74260
Source reference:
/cveMetadata/cveId
Publisher severity
high
Source reference: /containers/cna/metrics
- Event
- #28628 · Revision 1
- Added to Heist Feed
- Publisher date