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netfilter: nf_tables: use list_del_rcu for netlink hooks

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: use list_del_rcu for netlink hooks nft_netdev_unregister_hooks and __nft_unregister_flowtable_net_hooks need to use list_del_rcu(), this list can be walked by concurrent dumpers. Add a new helper and use it consistently.

Announced Source revision 1
Original source ↗

CVE-2026-46324

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-2026-46324

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": "f9a43007d3f7ba76d5e7f9421094f00f2ef202f8",
        "lessThan": "2405730fde96f7fa483a5862e323b681e0e09f54",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f9a43007d3f7ba76d5e7f9421094f00f2ef202f8",
        "lessThan": "fe45e203527af8a2c0dc4c8a7b56c09c74b796c8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f9a43007d3f7ba76d5e7f9421094f00f2ef202f8",
        "lessThan": "0bd93ce4f3c35e845532184331d7917d7e562c80",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f9a43007d3f7ba76d5e7f9421094f00f2ef202f8",
        "lessThan": "0f33e8ad6ac563ae2233dd7f75884e0ee010521d",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f9a43007d3f7ba76d5e7f9421094f00f2ef202f8",
        "lessThan": "f3224ee463f8f6f6ced7dcdf6081add4f8128527",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "c73955a09408e7374d9abfd0e78ce3de9cda0635",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "b09e6ccf0d12f9356e8e3508d3e3dce126298538",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3fac8ce48fa9fd61ee9056d3ed48b2edefca8b82",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "9c413a8c8bb49cc16796371805ecb260e885bb2b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a3940dcf552f2393d1e8f263b386593f98abe829",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "86c0154f4c3a56c5db8b9dd09e3ce885382c2c19",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4.19.316",
        "lessThan": "4.20",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.4.262",
        "lessThan": "5.5",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.10.198",
        "lessThan": "5.11",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.15.45",
        "lessThan": "5.16",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.17.13",
        "lessThan": "5.18",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.18.2",
        "lessThan": "5.19",
        "versionType": "semver"
      }
    ],
    "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": "5.19"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.19",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "6.6.160",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.114",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.33",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.10",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "net/netfilter/nf_tables_api.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-46324

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#46344 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement