{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-21805",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-12-29T08:45:45.771Z",
        "datePublished": "2025-02-27T20:00:58.290Z",
        "dateUpdated": "2026-07-30T05:45:54.783Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-30T05:45:54.783Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rtrs: Add missing deinit() call\n\nA warning is triggered when repeatedly connecting and disconnecting the\nrnbd:\n list_add corruption. prev->next should be next (ffff88800b13e480), but was ffff88801ecd1338. (prev=ffff88801ecd1340).\n WARNING: CPU: 1 PID: 36562 at lib/list_debug.c:32 __list_add_valid_or_report+0x7f/0xa0\n Workqueue: ib_cm cm_work_handler [ib_cm]\n RIP: 0010:__list_add_valid_or_report+0x7f/0xa0\n  ? __list_add_valid_or_report+0x7f/0xa0\n  ib_register_event_handler+0x65/0x93 [ib_core]\n  rtrs_srv_ib_dev_init+0x29/0x30 [rtrs_server]\n  rtrs_ib_dev_find_or_add+0x124/0x1d0 [rtrs_core]\n  __alloc_path+0x46c/0x680 [rtrs_server]\n  ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server]\n  ? rcu_is_watching+0xd/0x40\n  ? __mutex_lock+0x312/0xcf0\n  ? get_or_create_srv+0xad/0x310 [rtrs_server]\n  ? rtrs_rdma_connect+0xa6/0x2d0 [rtrs_server]\n  rtrs_rdma_connect+0x23c/0x2d0 [rtrs_server]\n  ? __lock_release+0x1b1/0x2d0\n  cma_cm_event_handler+0x4a/0x1a0 [rdma_cm]\n  cma_ib_req_handler+0x3a0/0x7e0 [rdma_cm]\n  cm_process_work+0x28/0x1a0 [ib_cm]\n  ? _raw_spin_unlock_irq+0x2f/0x50\n  cm_req_handler+0x618/0xa60 [ib_cm]\n  cm_work_handler+0x71/0x520 [ib_cm]\n\nCommit 667db86bcbe8 (\"RDMA/rtrs: Register ib event handler\") introduced a\nnew element .deinit but never used it at all. Fix it by invoking the\n`deinit()` to appropriately unregister the IB event handler."
                }
            ],
            "metrics": [
                {
                    "cvssV3_1": {
                        "version": "3.1",
                        "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                        "baseScore": 9.8,
                        "baseSeverity": "CRITICAL"
                    }
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/ulp/rtrs/rtrs.c"
                    ],
                    "versions": [
                        {
                            "version": "667db86bcbe82e789d82c2e8c8c40756ec2e1999",
                            "lessThan": "5a79cc9bc961fafe90787f86e8f53ba6fad8d63b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "667db86bcbe82e789d82c2e8c8c40756ec2e1999",
                            "lessThan": "1af2c769032b6b334cd2a867d7d8c7cbbc527b2d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "667db86bcbe82e789d82c2e8c8c40756ec2e1999",
                            "lessThan": "81468c4058a62e84e475433b83b3edc613294f5e",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/ulp/rtrs/rtrs.c"
                    ],
                    "versions": [
                        {
                            "version": "6.12",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.12",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.13",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.13.2",
                            "lessThanOrEqual": "6.13.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.14",
                            "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": "6.12",
                                    "versionEndExcluding": "6.12.13"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "6.13.2"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.12",
                                    "versionEndExcluding": "6.14"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/5a79cc9bc961fafe90787f86e8f53ba6fad8d63b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1af2c769032b6b334cd2a867d7d8c7cbbc527b2d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/81468c4058a62e84e475433b83b3edc613294f5e"
                }
            ],
            "title": "RDMA/rtrs: Add missing deinit() call",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}