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    "cveMetadata": {
        "cveId": "CVE-2025-39880",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2025-04-16T07:20:57.144Z",
        "datePublished": "2025-09-23T06:00:49.897Z",
        "dateUpdated": "2026-07-30T05:58:15.726Z"
    },
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                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: fix invalid accesses to ceph_connection_v1_info\n\nThere is a place where generic code in messenger.c is reading and\nanother place where it is writing to con->v1 union member without\nchecking that the union member is active (i.e. msgr1 is in use).\n\nOn 64-bit systems, con->v1.auth_retry overlaps with con->v2.out_iter,\nso such a read is almost guaranteed to return a bogus value instead of\n0 when msgr2 is in use.  This ends up being fairly benign because the\nside effect is just the invalidation of the authorizer and successive\nfetching of new tickets.\n\ncon->v1.connect_seq overlaps with con->v2.conn_bufs and the fact that\nit's being written to can cause more serious consequences, but luckily\nit's not something that happens often."
                }
            ],
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                        "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"
                    }
                }
            ],
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                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ceph/messenger.c"
                    ],
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                            "version": "cd1a677cad994021b19665ed476aea63f5d54f31",
                            "lessThan": "ea12ab684f8ae8a6da11a22c78d94a79e2163096",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "cd1a677cad994021b19665ed476aea63f5d54f31",
                            "lessThan": "591ea9c30737663a471b2bb07b27ddde86b020d5",
                            "status": "affected",
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                            "version": "cd1a677cad994021b19665ed476aea63f5d54f31",
                            "lessThan": "23538cfbeed87159a5ac6c61e7a6de3d8d4486a8",
                            "status": "affected",
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                            "lessThan": "35dbbc3dbf8bccb2d77c68444f42c1e6d2d27983",
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                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "cd1a677cad994021b19665ed476aea63f5d54f31",
                            "lessThan": "cdbc9836c7afadad68f374791738f118263c5371",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
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                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ceph/messenger.c"
                    ],
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                        {
                            "version": "5.11",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.11",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.194",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.153",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.107",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.48",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.16.8",
                            "lessThanOrEqual": "6.16.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.17",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
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                    "nodes": [
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ea12ab684f8ae8a6da11a22c78d94a79e2163096"
                },
                {
                    "url": "https://git.kernel.org/stable/c/591ea9c30737663a471b2bb07b27ddde86b020d5"
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                    "url": "https://git.kernel.org/stable/c/6bd8b56899be0b514945f639a89ccafb8f8dfaef"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cdbc9836c7afadad68f374791738f118263c5371"
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            ],
            "title": "libceph: fix invalid accesses to ceph_connection_v1_info",
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        "adp": [
            {
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
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