Skip to content
Heist/ feed
High

netfilter: nf_tables: make nft_object rhltable per table

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: make nft_object rhltable per table The nft_object rhltable is global, this allows for accessing objects that are being dismangled from lookup path by other existing netns. Given the nft_obj_destroy() releases the object inmediately, this might lead to use-after-free of these objects that are being released. Make the existing rhltable per table to address this issue to deal with with the nft_rcv_nl_event() path too. Update nft_obj_lookup() to take the table as non-const, otherwise, compiler complains when passing the objname_ht to rhltable_lookup().

Announced Source revision 1
Original source ↗

CVE-2026-74565

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-2026-74565

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": "4d44175aa5bb5f68772b1eb0306554812294ca52",
        "lessThan": "4b549d32d34ee765527e63726bb1af984876e776",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4d44175aa5bb5f68772b1eb0306554812294ca52",
        "lessThan": "523c881661dde67efb44fce38c8eed50a72a57c1",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4d44175aa5bb5f68772b1eb0306554812294ca52",
        "lessThan": "71714a2cec6c6d79bbd425ad968f9d6a3e4a2066",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4d44175aa5bb5f68772b1eb0306554812294ca52",
        "lessThan": "1948e4f85b855618b5b9a27265f98d816f4cb7cb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4d44175aa5bb5f68772b1eb0306554812294ca52",
        "lessThan": "63ba12b664a2cd3220ed43e22c717715f4cc2ae8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4d44175aa5bb5f68772b1eb0306554812294ca52",
        "lessThan": "7d4789b58761d9d48d9b5f5e7e0a510c3bbfb3af",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "4d44175aa5bb5f68772b1eb0306554812294ca52",
        "lessThan": "f4f699790590bd0896c48a71e9232a65198f92f0",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "include/net/netfilter/nf_tables.h",
      "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": "5.1"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.1",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.160",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.103",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.44",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.1.8",
        "versionType": "semver",
        "lessThanOrEqual": "7.1.*"
      },
      {
        "status": "unaffected",
        "version": "7.2",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "include/net/netfilter/nf_tables.h",
      "net/netfilter/nf_tables_api.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-74565

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#46578 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement