{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-45964",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-13T15:03:33.089Z",
        "datePublished": "2026-05-27T12:18:22.052Z",
        "dateUpdated": "2026-05-27T12:18:22.052Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-27T12:18:22.052Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nSUNRPC: fix gss_auth kref leak in gss_alloc_msg error path\n\nCommit 5940d1cf9f42 (\"SUNRPC: Rebalance a kref in auth_gss.c\") added\na kref_get(&gss_auth->kref) call to balance the gss_put_auth() done\nin gss_release_msg(), but forgot to add a corresponding kref_put()\non the error path when kstrdup_const() fails.\n\nIf service_name is non-NULL and kstrdup_const() fails, the function\njumps to err_put_pipe_version which calls put_pipe_version() and\nkfree(gss_msg), but never releases the gss_auth reference. This leads\nto a kref leak where the gss_auth structure is never freed.\n\nAdd a forward declaration for gss_free_callback() and call kref_put()\nin the err_put_pipe_version error path to properly release the\nreference taken earlier."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/sunrpc/auth_gss/auth_gss.c"
                    ],
                    "versions": [
                        {
                            "version": "5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e",
                            "lessThan": "3b2b6c42070ce4204936288253baf101e995c2d3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e",
                            "lessThan": "b559be2ec6cdb2e9c2c36c23fbbd4690d8a5c3f7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e",
                            "lessThan": "a1bc9561b617ec7e2d09e6c134d1db8fcf9ca4a6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e",
                            "lessThan": "655c9ba9915f05266998dbbf4b76b3c79b8a70aa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e",
                            "lessThan": "e464e26b2457005c87e158570498274b9f3b90c7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e",
                            "lessThan": "c20f925214249bb4fc04f7e197bea142a6438af6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e",
                            "lessThan": "a2d4e9a76de0b2178001214ba5de5bf94a7354aa",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5940d1cf9f42f67e9cc3f7df9eda39f5888d6e9e",
                            "lessThan": "dd2fdc3504592d85e549c523b054898a036a6afe",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/sunrpc/auth_gss/auth_gss.c"
                    ],
                    "versions": [
                        {
                            "version": "5.2",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.2",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.252",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.202",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.165",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.128",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.75",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.14",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.4",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.10.252"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "5.15.202"
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                                    "versionStartIncluding": "5.2",
                                    "versionEndExcluding": "7.0"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3b2b6c42070ce4204936288253baf101e995c2d3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b559be2ec6cdb2e9c2c36c23fbbd4690d8a5c3f7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a1bc9561b617ec7e2d09e6c134d1db8fcf9ca4a6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/655c9ba9915f05266998dbbf4b76b3c79b8a70aa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e464e26b2457005c87e158570498274b9f3b90c7"
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                {
                    "url": "https://git.kernel.org/stable/c/c20f925214249bb4fc04f7e197bea142a6438af6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a2d4e9a76de0b2178001214ba5de5bf94a7354aa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dd2fdc3504592d85e549c523b054898a036a6afe"
                }
            ],
            "title": "SUNRPC: fix gss_auth kref leak in gss_alloc_msg error path",
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