{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ffd980f976e7fd666c2e61bf8ab35107efd11828"
            },
            {
              "fixed": "bd5232663524e94cc5aad861dca11e3db8e2ab6f"
            },
            {
              "fixed": "ee8b36d0faca08f35b889b6e9aa850695e5b8ba9"
            },
            {
              "fixed": "dcaee869913c7210cd47ed0a8f27349d7bdcdb7b"
            },
            {
              "fixed": "84aa4807816e405c1bf87114fc63e06d244281ef"
            },
            {
              "fixed": "633bda66fbf309f5de5e1ad6defe8e6b1d77a20f"
            },
            {
              "fixed": "b024c21c9066f6957b7d4a8f2037e4b000c5e041"
            },
            {
              "fixed": "04d23061bbf18d5d81022eb21e9d32e99d24468d"
            },
            {
              "fixed": "d59948293ea34b6337ce2b5febab8510de70048c"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.6.25"
            },
            {
              "fixed": "5.10.265"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.216"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.183"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72113.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: bcm: add missing device refcount for CAN filter removal\n\nsashiko-bot remarked a problem with a concurrent device unregistration\nin isotp.c which also is present in the bcm.c code. A former fix for raw.c\ncommit c275a176e4b6 (\"can: raw: add missing refcount for memory leak fix\")\nintroduced a netdevice_tracker which solves the issue for bcm.c too.\n\nbcm_release(), bcm_delete_rx_op() and bcm_notifier() relied on\ndev_get_by_index(ifindex) to re-find the device for an rx_op before\nunregistering its filter. If a concurrent NETDEV_UNREGISTER has already\nunlisted the device from the ifindex table, that lookup fails and\ncan_rx_unregister() is silently skipped, leaving a stale CAN filter\npointing at the soon-to-be-freed bcm_op/socket.\n\nHold a netdev_hold()/netdev_put() tracked reference on op-\u003erx_reg_dev\nfrom the moment the rx filter is registered in bcm_rx_setup() until it\nis unregistered in bcm_rx_unreg(), and use that reference directly in\nbcm_release() and bcm_delete_rx_op() instead of re-looking the device\nup by ifindex.",
  "id": "CVE-2026-72113",
  "modified": "2026-08-20T03:30:23.937572734Z",
  "published": "2026-08-15T05:52:54.001Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/04d23061bbf18d5d81022eb21e9d32e99d24468d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/633bda66fbf309f5de5e1ad6defe8e6b1d77a20f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/84aa4807816e405c1bf87114fc63e06d244281ef"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b024c21c9066f6957b7d4a8f2037e4b000c5e041"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bd5232663524e94cc5aad861dca11e3db8e2ab6f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d59948293ea34b6337ce2b5febab8510de70048c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/dcaee869913c7210cd47ed0a8f27349d7bdcdb7b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ee8b36d0faca08f35b889b6e9aa850695e5b8ba9"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72113.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72113"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "can: bcm: add missing device refcount for CAN filter removal"
}