{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-43382",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-43382"
  ],
  "published": "2026-05-08T14:22:57Z",
  "summary": "batman-adv: Avoid double-rtnl_lock ELP metric worker",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: Avoid double-rtnl_lock ELP metric worker\n\nbatadv_v_elp_get_throughput() might be called when the RTNL lock is already\nheld. This could be problematic when the work queue item is cancelled via\ncancel_delayed_work_sync() in batadv_v_elp_iface_disable(). In this case,\nan rtnl_lock() would cause a deadlock.\n\nTo avoid this, rtnl_trylock() was used in this function to skip the\nretrieval of the ethtool information in case the RTNL lock was already\nheld.\n\nBut for cfg80211 interfaces, batadv_get_real_netdev() was called - which\nalso uses rtnl_lock(). The approach for __ethtool_get_link_ksettings() must\nalso be used instead and the lockless version __batadv_get_real_netdev()\nhas to be called.",
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  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43382"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4c3ae249431b4fcb315d7dfb4c3a13f9e443fd9b"
    },
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      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/192f40ad8a7dac58dae9199a065dbf7e6e67b75b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fa7b4edfbabdf9235b0ab4bea297fc12b3bec9ca"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f3ca45673dab0514a887231de6f3243a699d5bfd"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b7e5d8ddfdf1d6e9e0808d1adf7736a107372d77"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2ab9f2531d37775cd79228c1f5d80e6bd08d11d3"
    },
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      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/77808fe7d03ad0062840b95f431869a8b3d88b24"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/cfc83a3c71517b59c1047db57da31e26a9dc2f33"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-05-24T06:48:58Z"
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}