{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "4b623f9f0f59652ea71fcb27d60b4c3b65126dbb"
            },
            {
              "fixed": "8738dcc844fff7d0157ee775230e95df3b1884d7"
            },
            {
              "fixed": "83f7b54242d0abbfce35a55c01322f50962ed3ee"
            },
            {
              "fixed": "57885276cc16a2e2b76282c808a4e84cbecb3aae"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.19"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "6.19.9"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43481.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet-shapers: don't free reply skb after genlmsg_reply()\n\ngenlmsg_reply() hands the reply skb to netlink, and\nnetlink_unicast() consumes it on all return paths, whether the\nskb is queued successfully or freed on an error path.\n\nnet_shaper_nl_get_doit() and net_shaper_nl_cap_get_doit()\ncurrently jump to free_msg after genlmsg_reply() fails and call\nnlmsg_free(msg), which can hit the same skb twice.\n\nReturn the genlmsg_reply() error directly and keep free_msg\nonly for pre-reply failures.",
  "id": "CVE-2026-43481",
  "modified": "2026-07-15T01:49:22.537084263Z",
  "published": "2026-05-13T15:08:29.116Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/57885276cc16a2e2b76282c808a4e84cbecb3aae"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/83f7b54242d0abbfce35a55c01322f50962ed3ee"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8738dcc844fff7d0157ee775230e95df3b1884d7"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43481.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43481"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "net-shapers: don't free reply skb after genlmsg_reply()"
}