{
  "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-2026-53230",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2026-53230",
    "idYear": 2026,
    "status": "PUBLISHED",
    "publishedAt": "2026-06-25T08:39:29.210Z",
    "updatedAt": "2026-10-19T19:57:30.549Z",
    "importedAt": "2026-10-24T01:58:20.586Z",
    "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": "net/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5: Fix slab-out-of-bounds in mlx5_query_nic_vport_mac_list\n\nmlx5_query_nic_vport_mac_list() sizes its firmware command buffer using\nthe PF's log_max_current_uc/mc_list capabilities. When querying a VF\nvport with a larger configured max (via devlink), the firmware response\ncan overflow this buffer:\n\n BUG: KASAN: slab-out-of-bounds in mlx5_query_nic_vport_mac_list+0x453/0x4c0 [mlx5_core]\n Read of size 4 at addr ff1100013ffc8a12 by task kworker/u96:2/385\n\n CPU: 12 UID: 0 PID: 385 Comm: kworker/u96:2 Not tainted 7.0.0-rc6+ #1 PREEMPT\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009)\n Workqueue: mlx5_esw_wq esw_vport_change_handler [mlx5_core]\n Call Trace:\n  <TASK>\n  dump_stack_lvl+0x69/0xa0\n  print_report+0x176/0x4e4\n  kasan_report+0xc8/0x100\n  mlx5_query_nic_vport_mac_list+0x453/0x4c0 [mlx5_core]\n  esw_update_vport_addr_list+0x2e3/0xda0 [mlx5_core]\n  esw_vport_change_handle_locked+0xa1f/0x1060 [mlx5_core]\n  esw_vport_change_handler+0x6a/0x90 [mlx5_core]\n  process_one_work+0x87f/0x15e0\n  worker_thread+0x62b/0x1020\n  kthread+0x375/0x490\n  ret_from_fork+0x4dc/0x810\n  ret_from_fork_asm+0x11/0x20\n  </TASK>\n\nFix by querying the vport's own HCA caps to size the buffer correctly.\nRefactor the function to allocate and return the MAC list internally,\nremoving the caller's dependency on knowing the correct max.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "e16aea2744abea612c27ee0eef606c6a6a8204de",
              "status": "affected",
              "versionType": "git",
              "lessThan": "41781f2789309462520a93822e946521ed78f97f"
            },
            {
              "version": "e16aea2744abea612c27ee0eef606c6a6a8204de",
              "status": "affected",
              "versionType": "git",
              "lessThan": "537d87784e81c3d7037525b99416455cee088cdc"
            },
            {
              "version": "e16aea2744abea612c27ee0eef606c6a6a8204de",
              "status": "affected",
              "versionType": "git",
              "lessThan": "0f807764bb122fd63aa45f4229cb1ef2679fbd40"
            },
            {
              "version": "e16aea2744abea612c27ee0eef606c6a6a8204de",
              "status": "affected",
              "versionType": "git",
              "lessThan": "2398e497389ed4be43f7cfbab499b49cec7dae1a"
            },
            {
              "version": "e16aea2744abea612c27ee0eef606c6a6a8204de",
              "status": "affected",
              "versionType": "git",
              "lessThan": "894e036a24a26a6dd7b17d8d3fb5c53ab48a6074"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "4.5",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "4.5"
            },
            {
              "version": "6.6.143",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "version": "6.12.94",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "version": "6.18.36",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "version": "7.0.13",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "7.0.*"
            },
            {
              "version": "7.1",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}