{
  "cveId": "CVE-2022-49198",
  "url": "https://patchblox.com/security/cve/CVE-2022-49198",
  "summary": "CVE-2022-49198 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49198, 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:  mptcp: Fix crash due to tcp_tsorted_anchor was i...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  mptcp: Fix crash due to tcp_tsorted_anchor was initialized before release skb  Got crash when doing pressure test of mptcp:  =========================================================================== dst_release: dst:ffffa06ce6e5c058 refcnt:-1 kernel tried to execute NX-protected page - exploit attempt? (uid: 0) BUG: unable to handle kernel paging request at ffffa06ce6e5c058 PGD 190a01067 P4D 190a01067 PUD 43fffb067 PMD 22e403063 PTE 8000000226e5c063 Oops: 0011 [#1] SMP PTI CPU: 7 PID: 7823 Comm: kworker/7:0 Kdump: loaded Tainted: G            E Hardware name: QEMU Standard PC (i440FX \u002B PIIX, 1996), BIOS 1.2.1 04/01/2014 Call Trace:  ? skb_release_head_state\u002B0x68/0x100  ? skb_release_all\u002B0xe/0x30  ? kfree_skb\u002B0x32/0xa0  ? mptcp_sendmsg_frag\u002B0x57e/0x750  ? __mptcp_retrans\u002B0x21b/0x3c0  ? __switch_to_asm\u002B0x35/0x70  ? mptcp_worker\u002B0x25e/0x320  ? process_one_work\u002B0x1a7/0x360  ? worker_thread\u002B0x30/0x390  ? create_worker\u002B0x1a0/0x1a0  ? kthread\u002B0x112/0x130  ? kthread_flush_work_fn\u002B0x10/0x10  ? ret_from_fork\u002B0x35/0x40 ===========================================================================  In __mptcp_alloc_tx_skb skb was allocated and skb-\u003Etcp_tsorted_anchor will be initialized, in under memory pressure situation sk_wmem_schedule will return false and then kfree_skb. In this case skb-\u003E_skb_refdst is not null because_skb_refdst and tcp_tsorted_anchor are stored in the same mem, and kfree_skb will try to release dst and cause crash.",
  "published": "2025-02-26T07:00:56Z",
  "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": 0.00261,
  "epssPercentile": 0.17953,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-49198",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49198",
      "released": "2025-02-26T07:00:56Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-49198",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49198",
      "released": "2025-02-26T07:00:56Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "5.17.3-1",
      "fix": "DEBIAN-CVE-2022-49198",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49198",
      "released": "2025-02-26T07:00:56Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}