{
  "cveId": "CVE-2022-49558",
  "url": "https://patchblox.com/security/cve/CVE-2022-49558",
  "summary": "CVE-2022-49558 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49558, released February 26, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  netfilter: nf_tables: double hook unregistration...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  netfilter: nf_tables: double hook unregistration in netns path  __nft_release_hooks() is called from pre_netns exit path which unregisters the hooks, then the NETDEV_UNREGISTER event is triggered which unregisters the hooks again.  [  565.221461] WARNING: CPU: 18 PID: 193 at net/netfilter/core.c:495 __nf_unregister_net_hook\u002B0x247/0x270 [...] [  565.246890] CPU: 18 PID: 193 Comm: kworker/u64:1 Tainted: G            E     5.18.0-rc7\u002B #27 [  565.253682] Workqueue: netns cleanup_net [  565.257059] RIP: 0010:__nf_unregister_net_hook\u002B0x247/0x270 [...] [  565.297120] Call Trace: [  565.300900]  \u003CTASK\u003E [  565.304683]  nf_tables_flowtable_event\u002B0x16a/0x220 [nf_tables] [  565.308518]  raw_notifier_call_chain\u002B0x63/0x80 [  565.312386]  unregister_netdevice_many\u002B0x54f/0xb50  Unregister and destroy netdev hook from netns pre_exit via kfree_rcu so the NETDEV_UNREGISTER path see unregistered hooks.",
  "published": "2025-02-26T07:01:31Z",
  "severity": "medium",
  "cvss": 5.5,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00282,
  "epssPercentile": 0.20814,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.18.2-1",
      "fix": "DEBIAN-CVE-2022-49558",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49558",
      "released": "2025-02-26T07:01:31Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.18.2-1",
      "fix": "DEBIAN-CVE-2022-49558",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49558",
      "released": "2025-02-26T07:01:31Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.18.2-1",
      "fix": "DEBIAN-CVE-2022-49558",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49558",
      "released": "2025-02-26T07:01:31Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}