Skip to content
Heist/ feed
High

ieee802154: admin-gate legacy LLSEC dump operations

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ieee802154: admin-gate legacy LLSEC dump operations In net/ieee802154/netlink.c, the legacy IEEE802154_NL family ops table builds the LLSEC dump entries (LLSEC_LIST_KEY, LLSEC_LIST_DEV, LLSEC_LIST_DEVKEY, LLSEC_LIST_SECLEVEL) with IEEE802154_DUMP() which sets no .flags, so generic netlink runs them ungated. The modern nl802154 family admin-gates the equivalent reads via NL802154_CMD_GET_SEC_KEY and friends with .flags = GENL_ADMIN_PERM. Any local uid that can open AF_NETLINK / NETLINK_GENERIC can resolve the "802.15.4 MAC" family and dump LLSEC_LIST_KEY on any wpan netdev that has an LLSEC key installed; the dump handler writes the raw 16-byte AES-128 key bytes (IEEE802154_ATTR_LLSEC_KEY_BYTES, copied verbatim from struct ieee802154_llsec_key.key) into the reply. Recovering the AES key compromises 802.15.4 LLSEC link confidentiality and authenticity, since LLSEC uses CCM* and the same key authenticates and encrypts frames. Impact: any local uid with no capabilities can read the raw 16-byte AES-128 LLSEC key from the kernel keytable on any wpan netdev that has an administrator-installed LLSEC key, by issuing an LLSEC_LIST_KEY dump on the legacy IEEE802154_NL generic-netlink family. Introduce IEEE802154_DUMP_PRIV() mirroring IEEE802154_DUMP() but setting .flags = GENL_ADMIN_PERM, and use it for the four LLSEC dump entries. LIST_PHY and LIST_IFACE retain IEEE802154_DUMP() because the modern nl802154 family expos

Announced Source revision 1
Original source ↗

CVE-2026-72049

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-2026-72049

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": "3e9c156e2c210ab67b12b1b692983a6b97c19d3f",
        "lessThan": "3465035ba18b1ed50f8d201897d14135d20532b0",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3e9c156e2c210ab67b12b1b692983a6b97c19d3f",
        "lessThan": "dffe745760f38fac0b8288e0dc4759b23d9888ff",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3e9c156e2c210ab67b12b1b692983a6b97c19d3f",
        "lessThan": "e84708ef7521f3bffc85a449954042018abbd60e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3e9c156e2c210ab67b12b1b692983a6b97c19d3f",
        "lessThan": "5abe94a205539d27945cda3ba43fdcfe295cf2c8",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3e9c156e2c210ab67b12b1b692983a6b97c19d3f",
        "lessThan": "09fd25cd8cd80a6b3edef04e53a7324d06ac2180",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3e9c156e2c210ab67b12b1b692983a6b97c19d3f",
        "lessThan": "1905ebabe638c946aced00c4bb664da26cac56d5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3e9c156e2c210ab67b12b1b692983a6b97c19d3f",
        "lessThan": "6383248058956f2a52d720b1e9f8921099cdae04",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "3e9c156e2c210ab67b12b1b692983a6b97c19d3f",
        "lessThan": "9c1e0b6d49471a712511d23fc9d06901561135e8",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "net/ieee802154/ieee802154.h",
      "net/ieee802154/netlink.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "3.16"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "3.16",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.261",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.212",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.178",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.145",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.97",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.40",
        "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": [
      "net/ieee802154/ieee802154.h",
      "net/ieee802154/netlink.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-72049

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#41847 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement