{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-46165",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.102Z",
        "datePublished": "2026-05-28T09:36:20.855Z",
        "dateUpdated": "2026-06-14T17:59:29.913Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-06-14T17:59:29.913Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nopenvswitch: vport: fix self-deadlock on release of tunnel ports\n\nvports are used concurrently and protected by RCU, so netdev_put()\nmust happen after the RCU grace period.  So, either in an RCU call or\nafter the synchronize_net().  The rtnl_delete_link() must happen under\nRTNL and so can't be executed in RCU context.  Calling synchronize_net()\nwhile holding RTNL is not a good idea for performance and system\nstability under load in general, so calling netdev_put() in RCU call\nis the right solution here.\n\nHowever,\nwhen the device is deleted, rtnl_unlock() will call netdev_run_todo()\nand block until all the references are gone.  In the current code this\nmeans that we never reach the call_rcu() and the vport is never freed\nand the reference is never released, causing a self-deadlock on device\nremoval.\n\nFix that by moving the rcu_call() before the rtnl_unlock(), so the\nscheduled RCU callback will be executed when synchronize_net() is\ncalled from the rtnl_unlock()->netdev_run_todo() while the RTNL itself\nis already released."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/openvswitch/vport-netdev.c"
                    ],
                    "versions": [
                        {
                            "version": "9d56aced21fb9c104e8a3f3be9b21fbafe448ffc",
                            "lessThan": "8ae6c15fc473c9ad03b0173330cce9a092c76154",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "42f0d3d81209654c08ffdde5a34b9b92d2645896",
                            "lessThan": "c741433f6c8dcdecd1d9549d89053761fd1ea413",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "bbe7bd722bfaea36aab3da6cc60fb4a05c644643",
                            "lessThan": "6522d59fb7de55ce0f0f285d962243ddffebb01f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "98b726ab5e2a4811e27c28e4d041f75bba147eab",
                            "lessThan": "3df75fff46b1517eb479d8e6b8e3500763715dd0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6931d21f87bc6d657f145798fad0bf077b82486c",
                            "lessThan": "366c482965c673565ecb8bcfb15d5548f13a6a10",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6931d21f87bc6d657f145798fad0bf077b82486c",
                            "lessThan": "aa69918bd418e700309fdd08509dba324fb24296",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b8c56a3fc5d879c0928f207a756b0f067f06c6a8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.1.168",
                            "lessThan": "6.1.175",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.131",
                            "lessThan": "6.6.140",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.80",
                            "lessThan": "6.12.88",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.21",
                            "lessThan": "6.18.30",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.11",
                            "lessThan": "6.20",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/openvswitch/vport-netdev.c"
                    ],
                    "versions": [
                        {
                            "version": "7.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "7.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.175",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.140",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.88",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.30",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.7",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1.168",
                                    "versionEndExcluding": "6.1.175"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6.131",
                                    "versionEndExcluding": "6.6.140"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12.80",
                                    "versionEndExcluding": "6.12.88"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.18.21",
                                    "versionEndExcluding": "6.18.30"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "7.0",
                                    "versionEndExcluding": "7.0.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "7.0",
                                    "versionEndExcluding": "7.1"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19.11"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/8ae6c15fc473c9ad03b0173330cce9a092c76154"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c741433f6c8dcdecd1d9549d89053761fd1ea413"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6522d59fb7de55ce0f0f285d962243ddffebb01f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3df75fff46b1517eb479d8e6b8e3500763715dd0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/366c482965c673565ecb8bcfb15d5548f13a6a10"
                },
                {
                    "url": "https://git.kernel.org/stable/c/aa69918bd418e700309fdd08509dba324fb24296"
                }
            ],
            "title": "openvswitch: vport: fix self-deadlock on release of tunnel ports",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}