{
  "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-2022-50655",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50655",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-09T00:00:30.337Z",
    "updatedAt": "2026-05-11T19:23:03.144Z",
    "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": "ppp: associate skb with a device at tx",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nppp: associate skb with a device at tx\n\nSyzkaller triggered flow dissector warning with the following:\n\nr0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0xc0802, 0x0)\nioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f00000000c0))\nioctl$PPPIOCSACTIVE(r0, 0x40107446, &(0x7f0000000240)={0x2, &(0x7f0000000180)=[{0x20, 0x0, 0x0, 0xfffff034}, {0x6}]})\npwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000140)='\\x00!', 0x2}], 0x1, 0x0, 0x0)\n\n[    9.485814] WARNING: CPU: 3 PID: 329 at net/core/flow_dissector.c:1016 __skb_flow_dissect+0x1ee0/0x1fa0\n[    9.485929]  skb_get_poff+0x53/0xa0\n[    9.485937]  bpf_skb_get_pay_offset+0xe/0x20\n[    9.485944]  ? ppp_send_frame+0xc2/0x5b0\n[    9.485949]  ? _raw_spin_unlock_irqrestore+0x40/0x60\n[    9.485958]  ? __ppp_xmit_process+0x7a/0xe0\n[    9.485968]  ? ppp_xmit_process+0x5b/0xb0\n[    9.485974]  ? ppp_write+0x12a/0x190\n[    9.485981]  ? do_iter_write+0x18e/0x2d0\n[    9.485987]  ? __import_iovec+0x30/0x130\n[    9.485997]  ? do_pwritev+0x1b6/0x240\n[    9.486016]  ? trace_hardirqs_on+0x47/0x50\n[    9.486023]  ? __x64_sys_pwritev+0x24/0x30\n[    9.486026]  ? do_syscall_64+0x3d/0x80\n[    9.486031]  ? entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nFlow dissector tries to find skb net namespace either via device\nor via socket. Neigher is set in ppp_send_frame, so let's manually\nuse ppp->dev.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "d58e468b1112dcd1d5193c0a89ff9f98b5a3e8b9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7da524781c531ebaf2f94c9dc4c541b82edecfed"
            },
            {
              "version": "d58e468b1112dcd1d5193c0a89ff9f98b5a3e8b9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "148dcbd3af039ae39c3af697a3183008c7995805"
            },
            {
              "version": "d58e468b1112dcd1d5193c0a89ff9f98b5a3e8b9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "4b8f3b939266c90f03b7cc7e26a4c28c7b64137b"
            },
            {
              "version": "d58e468b1112dcd1d5193c0a89ff9f98b5a3e8b9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "18dc946360bfe0de016a59e3cc3ee1f450fceb9d"
            },
            {
              "version": "d58e468b1112dcd1d5193c0a89ff9f98b5a3e8b9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "ee678b1f52f9439e930db2db3fd7e345d03e1a50"
            },
            {
              "version": "d58e468b1112dcd1d5193c0a89ff9f98b5a3e8b9",
              "status": "affected",
              "versionType": "git",
              "lessThan": "9f225444467b98579cf28d94f4ad053460dfdb84"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.20",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.20"
            },
            {
              "version": "5.4.229",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.4.*"
            },
            {
              "version": "5.10.163",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.86",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "6.0.16",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "version": "6.1.2",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.2",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}