{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ffd980f976e7fd666c2e61bf8ab35107efd11828"
            },
            {
              "fixed": "18b45251e74e35668f0dd0c470549384ae191ecf"
            },
            {
              "fixed": "3ff8c24b421070a2db99a5cdb86edc9ff339418e"
            },
            {
              "fixed": "eca8b44d51fc6ab61022258ec968e55e3073b79e"
            },
            {
              "fixed": "b6317022b685a430a3ae420456716e3c0c02ef4b"
            },
            {
              "fixed": "2f5976f54a04e9f18b25283036ac3136be453b17"
            }
          ],
          "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": "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-2026-72115.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: bcm: track a single source interface for ANYDEV timeout/throttle ops\n\nAn ANYDEV rx op (ifindex == 0) with an active RX timeout and/or\nthrottle timer has no defined semantics when matching frames arrive\nfrom several interfaces: bcm_rx_handler() can run concurrently for\nthe same op on different CPUs, racing hrtimer_cancel()/\nbcm_rx_starttimer() against bcm_rx_timeout_handler() and causing\nspurious RX_TIMEOUT notifications and last_frames corruption. The\nsame concurrency lets throttled multiplex frames from different\ninterfaces clobber the single rx_ifindex/rx_stamp fields shared by\nthe op.\n\nAdd op-\u003eif_detected to track the first interface that delivers a\nmatching frame while a timeout/throttle timer is configured, and\nreject frames from any other interface for that op. The claim is\ndecided in bcm_rx_handler() before hrtimer_cancel() touches\nop-\u003etimer, so a rejected frame can never disturb the claimed\ninterface's watchdog. RTR-mode ops are excluded via RX_RTR_FRAME,\nindependent of kt_ival1/kt_ival2, since those may briefly hold a\nstale value from an earlier non-RTR configuration.\n\nThe claim is released in bcm_notify() on NETDEV_UNREGISTER and in\nbcm_rx_setup() when SETTIMER reconfigures the timer values.\n\nA (re-)claim is only possible on CAN devices in NETREG_REGISTERED\ndev-\u003ereg_state to cover the release in bcm_notify() where reg_state\nbecomes NETREG_UNREGISTERING until synchronize_net().",
  "id": "CVE-2026-72115",
  "modified": "2026-08-18T03:30:58.615895232Z",
  "published": "2026-08-15T05:52:55.524Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/18b45251e74e35668f0dd0c470549384ae191ecf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2f5976f54a04e9f18b25283036ac3136be453b17"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ff8c24b421070a2db99a5cdb86edc9ff339418e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b6317022b685a430a3ae420456716e3c0c02ef4b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eca8b44d51fc6ab61022258ec968e55e3073b79e"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/72xxx/CVE-2026-72115.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-72115"
    },
    {
      "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:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "can: bcm: track a single source interface for ANYDEV timeout/throttle ops"
}