{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2022-49838",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-49838",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-05-01T14:09:54.816Z",
    "updatedAt": "2026-05-11T19:07:45.252Z",
    "importedAt": "2026-10-24T01:56:49.724Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "sctp: clear out_curr if all frag chunks of current msg are pruned",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsctp: clear out_curr if all frag chunks of current msg are pruned\n\nA crash was reported by Zhen Chen:\n\n  list_del corruption, ffffa035ddf01c18->next is NULL\n  WARNING: CPU: 1 PID: 250682 at lib/list_debug.c:49 __list_del_entry_valid+0x59/0xe0\n  RIP: 0010:__list_del_entry_valid+0x59/0xe0\n  Call Trace:\n   sctp_sched_dequeue_common+0x17/0x70 [sctp]\n   sctp_sched_fcfs_dequeue+0x37/0x50 [sctp]\n   sctp_outq_flush_data+0x85/0x360 [sctp]\n   sctp_outq_uncork+0x77/0xa0 [sctp]\n   sctp_cmd_interpreter.constprop.0+0x164/0x1450 [sctp]\n   sctp_side_effects+0x37/0xe0 [sctp]\n   sctp_do_sm+0xd0/0x230 [sctp]\n   sctp_primitive_SEND+0x2f/0x40 [sctp]\n   sctp_sendmsg_to_asoc+0x3fa/0x5c0 [sctp]\n   sctp_sendmsg+0x3d5/0x440 [sctp]\n   sock_sendmsg+0x5b/0x70\n\nand in sctp_sched_fcfs_dequeue() it dequeued a chunk from stream\nout_curr outq while this outq was empty.\n\nNormally stream->out_curr must be set to NULL once all frag chunks of\ncurrent msg are dequeued, as we can see in sctp_sched_dequeue_done().\nHowever, in sctp_prsctp_prune_unsent() as it is not a proper dequeue,\nsctp_sched_dequeue_done() is not called to do this.\n\nThis patch is to fix it by simply setting out_curr to NULL when the\nlast frag chunk of current msg is dequeued from out_curr stream in\nsctp_prsctp_prune_unsent().",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "5bbbbe32a43199c2b9ea5ea66fab6241c64beb51",
              "status": "affected",
              "versionType": "git",
              "lessThan": "e27458b18b35caee4b27b37a4a9c503b93cae5cc"
            },
            {
              "version": "5bbbbe32a43199c2b9ea5ea66fab6241c64beb51",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2ea600b598dd3e061854dd4dd5b4c815397dfcea"
            },
            {
              "version": "5bbbbe32a43199c2b9ea5ea66fab6241c64beb51",
              "status": "affected",
              "versionType": "git",
              "lessThan": "3eff34e01062ec08fbb45ce2baaaa644550be821"
            },
            {
              "version": "5bbbbe32a43199c2b9ea5ea66fab6241c64beb51",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2f201ae14ae0f91dbf1cffea7bb1e29e81d4d108"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.15",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.15"
            },
            {
              "version": "5.10.156",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.81",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.0.10",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}