{
  "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-2023-53855",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2023-53855",
    "idYear": 2023,
    "status": "PUBLISHED",
    "publishedAt": "2025-12-09T01:30:20.864Z",
    "updatedAt": "2026-05-11T19:52:49.268Z",
    "importedAt": "2026-10-24T01:57:03.413Z",
    "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: dsa: ocelot: call dsa_tag_8021q_unregister() under rtnl_lock() on driver remove",
      "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: ocelot: call dsa_tag_8021q_unregister() under rtnl_lock() on driver remove\n\nWhen the tagging protocol in current use is \"ocelot-8021q\" and we unbind\nthe driver, we see this splat:\n\n$ echo '0000:00:00.2' > /sys/bus/pci/drivers/fsl_enetc/unbind\nmscc_felix 0000:00:00.5 swp0: left promiscuous mode\nsja1105 spi2.0: Link is Down\nDSA: tree 1 torn down\nmscc_felix 0000:00:00.5 swp2: left promiscuous mode\nsja1105 spi2.2: Link is Down\nDSA: tree 3 torn down\nfsl_enetc 0000:00:00.2 eno2: left promiscuous mode\nmscc_felix 0000:00:00.5: Link is Down\n------------[ cut here ]------------\nRTNL: assertion failed at net/dsa/tag_8021q.c (409)\nWARNING: CPU: 1 PID: 329 at net/dsa/tag_8021q.c:409 dsa_tag_8021q_unregister+0x12c/0x1a0\nModules linked in:\nCPU: 1 PID: 329 Comm: bash Not tainted 6.5.0-rc3+ #771\npc : dsa_tag_8021q_unregister+0x12c/0x1a0\nlr : dsa_tag_8021q_unregister+0x12c/0x1a0\nCall trace:\n dsa_tag_8021q_unregister+0x12c/0x1a0\n felix_tag_8021q_teardown+0x130/0x150\n felix_teardown+0x3c/0xd8\n dsa_tree_teardown_switches+0xbc/0xe0\n dsa_unregister_switch+0x168/0x260\n felix_pci_remove+0x30/0x60\n pci_device_remove+0x4c/0x100\n device_release_driver_internal+0x188/0x288\n device_links_unbind_consumers+0xfc/0x138\n device_release_driver_internal+0xe0/0x288\n device_driver_detach+0x24/0x38\n unbind_store+0xd8/0x108\n drv_attr_store+0x30/0x50\n---[ end trace 0000000000000000 ]---\n------------[ cut here ]------------\nRTNL: assertion failed at net/8021q/vlan_core.c (376)\nWARNING: CPU: 1 PID: 329 at net/8021q/vlan_core.c:376 vlan_vid_del+0x1b8/0x1f0\nCPU: 1 PID: 329 Comm: bash Tainted: G        W          6.5.0-rc3+ #771\npc : vlan_vid_del+0x1b8/0x1f0\nlr : vlan_vid_del+0x1b8/0x1f0\n dsa_tag_8021q_unregister+0x8c/0x1a0\n felix_tag_8021q_teardown+0x130/0x150\n felix_teardown+0x3c/0xd8\n dsa_tree_teardown_switches+0xbc/0xe0\n dsa_unregister_switch+0x168/0x260\n felix_pci_remove+0x30/0x60\n pci_device_remove+0x4c/0x100\n device_release_driver_internal+0x188/0x288\n device_links_unbind_consumers+0xfc/0x138\n device_release_driver_internal+0xe0/0x288\n device_driver_detach+0x24/0x38\n unbind_store+0xd8/0x108\n drv_attr_store+0x30/0x50\nDSA: tree 0 torn down\n\nThis was somewhat not so easy to spot, because \"ocelot-8021q\" is not the\ndefault tagging protocol, and thus, not everyone who tests the unbinding\npath may have switched to it beforehand. The default\nfelix_tag_npi_teardown() does not require rtnl_lock() to be held.",
      "affected": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "7c83a7c539abe9f980996063ac20532a7a7f6eb1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "758dbcfb257e1aee0a310bae789c2af6ffe35d0f"
            },
            {
              "version": "7c83a7c539abe9f980996063ac20532a7a7f6eb1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "7ae8fa6b70975b6efbbef7912d09bff5a0bff491"
            },
            {
              "version": "7c83a7c539abe9f980996063ac20532a7a7f6eb1",
              "status": "affected",
              "versionType": "git",
              "lessThan": "a94c16a2fda010866b8858a386a8bfbeba4f72c5"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "5.12",
              "status": "affected"
            },
            {
              "version": "0",
              "status": "unaffected",
              "versionType": "semver",
              "lessThan": "5.12"
            },
            {
              "version": "6.1.46",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "version": "6.4.11",
              "status": "unaffected",
              "versionType": "semver",
              "lessThanOrEqual": "6.4.*"
            },
            {
              "version": "6.5",
              "status": "unaffected",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ]
        }
      ]
    }
  }
}