{
  "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-2022-48647",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-48647",
    "idYear": 2022,
    "status": "PUBLISHED",
    "publishedAt": "2024-04-28T13:00:19.674Z",
    "updatedAt": "2026-05-23T15:20:26.545Z",
    "importedAt": "2026-10-24T01:56:45.230Z",
    "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": "sfc: fix TX channel offset when using legacy interrupts",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nsfc: fix TX channel offset when using legacy interrupts\n\nIn legacy interrupt mode the tx_channel_offset was hardcoded to 1, but\nthat's not correct if efx_sepparate_tx_channels is false. In that case,\nthe offset is 0 because the tx queues are in the single existing channel\nat index 0, together with the rx queue.\n\nWithout this fix, as soon as you try to send any traffic, it tries to\nget the tx queues from an uninitialized channel getting these errors:\n  WARNING: CPU: 1 PID: 0 at drivers/net/ethernet/sfc/tx.c:540 efx_hard_start_xmit+0x12e/0x170 [sfc]\n  [...]\n  RIP: 0010:efx_hard_start_xmit+0x12e/0x170 [sfc]\n  [...]\n  Call Trace:\n   <IRQ>\n   dev_hard_start_xmit+0xd7/0x230\n   sch_direct_xmit+0x9f/0x360\n   __dev_queue_xmit+0x890/0xa40\n  [...]\n  BUG: unable to handle kernel NULL pointer dereference at 0000000000000020\n  [...]\n  RIP: 0010:efx_hard_start_xmit+0x153/0x170 [sfc]\n  [...]\n  Call Trace:\n   <IRQ>\n   dev_hard_start_xmit+0xd7/0x230\n   sch_direct_xmit+0x9f/0x360\n   __dev_queue_xmit+0x890/0xa40\n  [...]",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "bf2af9b24313553f3f0b30443220ab0ac8595d2d",
              "status": "affected",
              "versionType": "git",
              "lessThan": "b4afd3878f961d3517f27b3213730fceef77945c"
            },
            {
              "version": "06cb7e134f8f4a11b66f1dbeb5f237412a0aeedc",
              "status": "affected",
              "versionType": "git",
              "lessThan": "360910b88d1466a90644a4e0533803b594344a2b"
            },
            {
              "version": "c308dfd1b43ef0d4c3e57b741bb3462eb7a7f4a2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "5f623a77cfc2d501d72bcb4f9ee71721e6c766ff"
            },
            {
              "version": "c308dfd1b43ef0d4c3e57b741bb3462eb7a7f4a2",
              "status": "affected",
              "versionType": "git",
              "lessThan": "f232af4295653afa4ade3230462b3be15ad16419"
            },
            {
              "version": "1a7c0b3ef93d1d1dae7b0a85dab3ac6e3ad0ef61",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "b2d60329a0b88c4e35017436ee29c43be59d46a5",
              "status": "affected",
              "versionType": "git"
            },
            {
              "version": "5.10.122",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.10.146"
            },
            {
              "version": "5.15.47",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.15.71"
            },
            {
              "version": "5.17.15",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.18"
            },
            {
              "version": "5.18.4",
              "status": "affected",
              "versionType": "semver",
              "lessThan": "5.19"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.19",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.19"
            },
            {
              "version": "5.10.146",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "version": "5.15.71",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "version": "5.19.12",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "5.19.*"
            },
            {
              "version": "6.0",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}