{
  "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-2022-50459",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50459",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-10-01T11:45:31.740Z",
    "updatedAt": "2026-08-05T08:58:52.235Z",
    "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": "scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername()\n\nFix a NULL pointer crash that occurs when we are freeing the socket at the\nsame time we access it via sysfs.\n\nThe problem is that:\n\n 1. iscsi_sw_tcp_conn_get_param() and iscsi_sw_tcp_host_get_param() take\n    the frwd_lock and do sock_hold() then drop the frwd_lock. sock_hold()\n    does a get on the \"struct sock\".\n\n 2. iscsi_sw_tcp_release_conn() does sockfd_put() which does the last put\n    on the \"struct socket\" and that does __sock_release() which sets the\n    sock->ops to NULL.\n\n 3. iscsi_sw_tcp_conn_get_param() and iscsi_sw_tcp_host_get_param() then\n    call kernel_getpeername() which accesses the NULL sock->ops.\n\nAbove we do a get on the \"struct sock\", but we needed a get on the \"struct\nsocket\". Originally, we just held the frwd_lock the entire time but in\ncommit bcf3a2953d36 (\"scsi: iscsi: iscsi_tcp: Avoid holding spinlock while\ncalling getpeername()\") we switched to refcount based because the network\nlayer changed and started taking a mutex in that path, so we could no\nlonger hold the frwd_lock.\n\nInstead of trying to maintain multiple refcounts, this just has us use a\nmutex for accessing the socket in the interface code paths.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bcf3a2953d36bbfb9bd44ccb3db0897d935cc485",
              "status": "affected",
              "versionType": "git",
              "lessThan": "884a788f065578bb640382279a83d1df433b13e6"
            },
            {
              "version": "bcf3a2953d36bbfb9bd44ccb3db0897d935cc485",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a26b0658751bb0a3b28386fca715333b104d32a2"
            },
            {
              "version": "bcf3a2953d36bbfb9bd44ccb3db0897d935cc485",
              "status": "affected",
              "versionType": "git",
              "lessThan": "897dbbc57d71e8a34ec1af8e573a142de457da38"
            },
            {
              "version": "bcf3a2953d36bbfb9bd44ccb3db0897d935cc485",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0a0b861fce2657ba08ec356a74346b37ca4b2008"
            },
            {
              "version": "bcf3a2953d36bbfb9bd44ccb3db0897d935cc485",
              "status": "affected",
              "versionType": "git",
              "lessThan": "57569c37f0add1b6489e1a1563c71519daf732cf"
            },
            {
              "version": "7d29e950766327f658cb92722b9445ac3b3ae023",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.8.14",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.9"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.9",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.9"
            },
            {
              "version": "5.10.150",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.75",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.19.17",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.19.*"
            },
            {
              "version": "6.0.3",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}