{
  "cveId": "CVE-2022-49838",
  "url": "https://patchblox.com/security/cve/CVE-2022-49838",
  "summary": "CVE-2022-49838 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49838, released May 1, 2025. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "linux: In the Linux kernel, the following vulnerability has been resolved:  sctp: clear out_curr if all frag chunks of curre...",
  "description": "In the Linux kernel, the following vulnerability has been resolved:  sctp: clear out_curr if all frag chunks of current msg are pruned  A crash was reported by Zhen Chen:    list_del corruption, ffffa035ddf01c18-\u003Enext is NULL   WARNING: CPU: 1 PID: 250682 at lib/list_debug.c:49 __list_del_entry_valid\u002B0x59/0xe0   RIP: 0010:__list_del_entry_valid\u002B0x59/0xe0   Call Trace:    sctp_sched_dequeue_common\u002B0x17/0x70 [sctp]    sctp_sched_fcfs_dequeue\u002B0x37/0x50 [sctp]    sctp_outq_flush_data\u002B0x85/0x360 [sctp]    sctp_outq_uncork\u002B0x77/0xa0 [sctp]    sctp_cmd_interpreter.constprop.0\u002B0x164/0x1450 [sctp]    sctp_side_effects\u002B0x37/0xe0 [sctp]    sctp_do_sm\u002B0xd0/0x230 [sctp]    sctp_primitive_SEND\u002B0x2f/0x40 [sctp]    sctp_sendmsg_to_asoc\u002B0x3fa/0x5c0 [sctp]    sctp_sendmsg\u002B0x3d5/0x440 [sctp]    sock_sendmsg\u002B0x5b/0x70  and in sctp_sched_fcfs_dequeue() it dequeued a chunk from stream out_curr outq while this outq was empty.  Normally stream-\u003Eout_curr must be set to NULL once all frag chunks of current msg are dequeued, as we can see in sctp_sched_dequeue_done(). However, in sctp_prsctp_prune_unsent() as it is not a proper dequeue, sctp_sched_dequeue_done() is not called to do this.  This patch is to fix it by simply setting out_curr to NULL when the last frag chunk of current msg is dequeued from out_curr stream in sctp_prsctp_prune_unsent().",
  "published": "2025-05-01T15:16:07Z",
  "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": 0.00215,
  "epssPercentile": 0.11975,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49838",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49838",
      "released": "2025-05-01T15:16:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49838",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49838",
      "released": "2025-05-01T15:16:07Z"
    },
    {
      "platform": "linux",
      "product": "linux",
      "release": "Debian 14",
      "fixedVersion": "6.0.10-1",
      "fix": "DEBIAN-CVE-2022-49838",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2022-49838",
      "released": "2025-05-01T15:16:07Z"
    }
  ],
  "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"
  }
}