{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-97477",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-24T16:01:01.149Z",
        "datePublished": "2026-09-24T16:04:19.358Z",
        "dateUpdated": "2026-10-21T12:52:48.541Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:52:48.541Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/counter: Fix num_counters leak on bind_qp failure in alloc_and_bind()\n\nWhen __rdma_counter_bind_qp() fails in alloc_and_bind(), the error path\njumps to err_mode which frees the counter without decrementing\nport_counter->num_counters. The only place that decrements is\nrdma_counter_free(), which is unreachable since the counter was never\nsuccessfully bound.\n\nThis leak accumulates across repeated failures, permanently preventing\nthe port from switching to AUTO mode (-EBUSY in __counter_set_mode())\nand blocking the MANUAL→NONE auto-revert in rdma_counter_free(). When\nthe mode was NONE before the call, the MANUAL mode set by\n__counter_set_mode() also leaks since the revert logic is never\nreached.\n\nAdd an err_bind label between the num_counters increment and the\nexisting err_mode label. It decrements num_counters and mirrors the\nMANUAL→NONE revert from rdma_counter_free(), ensuring the port state\nis fully restored on bind failure."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/infiniband/core/counters.c"
                    ],
                    "versions": [
                        {
                            "version": "8bc205eff3056a9ed3850937cdd2192f05e6d3cb",
                            "lessThan": "7c9fee40fc8d8d928f44e99bc6e6adf93f9f2c2a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8bc205eff3056a9ed3850937cdd2192f05e6d3cb",
                            "lessThan": "1bcdeddddffadff9993657f6b0e5535d66ebd10f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8bc205eff3056a9ed3850937cdd2192f05e6d3cb",
                            "lessThan": "da95cb016812c0e012ea839f191926e35ca8f57f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "8bc205eff3056a9ed3850937cdd2192f05e6d3cb",
                            "lessThan": "4fbc8230009f5b1bcd13cc74c5a6a43ddba141fd",
                            "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/core/counters.c"
                    ],
                    "versions": [
                        {
                            "version": "5.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.114",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "5.11",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.12.114"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.11",
                                    "versionEndExcluding": "6.18.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "7.2"
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                            ]
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/7c9fee40fc8d8d928f44e99bc6e6adf93f9f2c2a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1bcdeddddffadff9993657f6b0e5535d66ebd10f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/da95cb016812c0e012ea839f191926e35ca8f57f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4fbc8230009f5b1bcd13cc74c5a6a43ddba141fd"
                }
            ],
            "title": "RDMA/counter: Fix num_counters leak on bind_qp failure in alloc_and_bind()",
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    }
}