{
  "cveId": "CVE-2026-98849",
  "url": "https://patchblox.com/security/cve/CVE-2026-98849",
  "summary": "CVE-2026-98849 is fixed in 2 products on 1 platform, first by DEBIAN-CVE-2026-98849, released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "pfcp: fix socket lifetime on netdevice registration failure",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  pfcp: fix socket lifetime on netdevice registration failure  pfcp_newlink() creates the UDP socket before register_netdevice(). If registration fails after pfcp_dev_init() succeeds, the core calls pfcp_dev_uninit(), which releases the socket and clears pfcp-\u003Esk. The newlink error path then releases it again, causing a NULL pointer dereference. This was observed with failslab fault injection:    FAULT_INJECTION: forcing a failure.   kobject: kobject_add_internal failed for pfcp0 (error: -12 parent: net)   BUG: KASAN: null-ptr-deref in udp_tunnel_sock_release\u002B0x1c/0x50   Read of size 8 at addr 0000000000000120 by task ip/1037   Call trace:    show_stack\u002B0x18/0x24 (C)    dump_stack_lvl\u002B0x78/0x90    print_report\u002B0x468/0x5cc    kasan_report\u002B0xa4/0xf0    __asan_load8\u002B0x7c/0xd0    udp_tunnel_sock_release\u002B0x1c/0x50    pfcp_newlink\u002B0x128/0x184    rtnl_newlink\u002B0x848/0xe44    rtnetlink_rcv_msg\u002B0x468/0x514    netlink_rcv_skb\u002B0xc0/0x1f0    rtnetlink_rcv\u002B0x18/0x24    netlink_unicast\u002B0x4b8/0x558    netlink_sendmsg\u002B0x2b8/0x584    ...  Return from pfcp_del_sock() if pfcp-\u003Esk is NULL.",
  "published": "2026-10-18T16:17:39Z",
  "severity": "",
  "epss": 0.00168,
  "epssPercentile": 0.06184,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98849",
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.12.113-1",
      "fix": "DEBIAN-CVE-2026-98849",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98849",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "7.2.10-1",
      "fix": "DEBIAN-CVE-2026-98849",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98849",
      "released": "2026-10-19T16:27:52Z"
    },
    {
      "platform": "linux",
      "product": "linux-6.12",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.12.113-1~deb12u1",
      "fix": "DEBIAN-CVE-2026-98849",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-98849",
      "released": "2026-10-19T16:27:52Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-09T07:25:28Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}