{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64092",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T07:54:57.032Z",
        "datePublished": "2026-07-19T15:40:00.603Z",
        "dateUpdated": "2026-07-19T15:40:00.603Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-19T15:40:00.603Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: tp_meter: fix tp_vars reference leak in receiver shutdown\n\nThe receiver shutdown timer handler, batadv_tp_receiver_shutdown(), is\nresponsible for releasing the tp_vars reference it holds. However, the\nexisting logic for coordinating this release with batadv_tp_stop_all() was\nflawed.\n\ntimer_shutdown_sync() guarantees the timer will not fire again after it\nreturns, but it returns non-zero only when the timer was pending at the\ntime of the call. If the timer had already expired (and\nbatadv_tp_stop_all() would unsucessfully try to  rearm itself),\nbatadv_tp_stop_all() skips its batadv_tp_vars_put(), and\nbatadv_tp_receiver_shutdown() fails to put its own reference as well.\n\nFix this by introducing a new atomic variable receiving that is set to 1\nwhen the receiver is initialized and cleared atomically with atomic_xchg()\nby whichever side claims it first. Only the side that observes the\ntransition from 1 to 0 is responsible for releasing the tp_vars timer\nreference, eliminating the uncertainty."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/batman-adv/tp_meter.c",
                        "net/batman-adv/types.h"
                    ],
                    "versions": [
                        {
                            "version": "268078acae72daa12b17b2b299701cb9924e469a",
                            "lessThan": "7715c73f33260af724d734c41b794457e9be8dbc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "58943b7ea356294749dae3e75b96c0ee292c00be",
                            "lessThan": "297e1bc4a915b7cd3e65a79ed906b23fb3d7aaae",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "79bc0eaeef2c5797317bf2da8e3159a74d62ec47",
                            "lessThan": "0b1bedf114ea93fef929b31f0d70a9eedcc601de",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "26dfeee8db81354bfdade155f27f9e16510ad196",
                            "lessThan": "a9f0bfd624ee8a286d6fd2bf0f796e730efb49b0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "03660dab86f93319178a24667f6998526dc4355d",
                            "lessThan": "b285bc0a97f43823a4967fb6d286de4c7f53d541",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8634c1dbd73adb74d40533ebb7e914efb82e71fb",
                            "lessThan": "d078501dde9b57210f1808cdef4b59463d1f5fc8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "3d3cf6a7314aca4df0a6dde28ce784a2a30d0166",
                            "lessThan": "77098e4bea37af51d3962efa88a5af2ea5e1ac57",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e7d0ac936354c36810e74ac3056b334ed1f4058",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.259",
                            "lessThan": "5.11",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/batman-adv/tp_meter.c",
                        "net/batman-adv/types.h"
                    ],
                    "versions": [
                        {
                            "version": "6.6.140",
                            "lessThan": "6.6.142",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.90",
                            "lessThan": "6.12.92",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.32",
                            "lessThan": "6.18.34",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.9",
                            "lessThan": "7.0.11",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.140",
                                    "versionEndExcluding": "6.6.142"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.90",
                                    "versionEndExcluding": "6.12.92"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18.32",
                                    "versionEndExcluding": "6.18.34"
                                },
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "7.0.9",
                                    "versionEndExcluding": "7.0.11"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10.259"
                                }
                            ]
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/7715c73f33260af724d734c41b794457e9be8dbc"
                },
                {
                    "url": "https://git.kernel.org/stable/c/297e1bc4a915b7cd3e65a79ed906b23fb3d7aaae"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0b1bedf114ea93fef929b31f0d70a9eedcc601de"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a9f0bfd624ee8a286d6fd2bf0f796e730efb49b0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b285bc0a97f43823a4967fb6d286de4c7f53d541"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d078501dde9b57210f1808cdef4b59463d1f5fc8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/77098e4bea37af51d3962efa88a5af2ea5e1ac57"
                }
            ],
            "title": "batman-adv: tp_meter: fix tp_vars reference leak in receiver shutdown",
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}