{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-80558",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-26T14:34:25.767Z",
        "datePublished": "2026-08-26T14:37:24.768Z",
        "dateUpdated": "2026-08-26T14:37:24.768Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-26T14:37:24.768Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: Avoid using invalid osd indices from primary_temp\n\nA corrupted osdmap received from a Ceph monitor or OSD may contain osd\nindices in its pg_temp, primary_temp, pg_upmap, and pg_upmap_items parts\nthat don't exist, i.e., that are greater than max_osd or smaller than\nCEPH_HOMELESS_OSD (-1). These indices are used to create the up and\nacting set in ceph_pg_to_up_acting_osds(), called from calc_target().\nWhile most of these osd indices are checked, the one from primary_temp\nis not. Subsequently, this may lead to calc_target() returning this\n(potentially invalid) index as target osd for a (linger) request.\nBecause the osd_state, osd_weight, and osd_addr arrays only contain\nmax_osd entries (with indices 0 to max_osd -1), this leads to\nout-of-bounds accesses when trying to read values from these arrays.\n\nThis patch fixes the issue by adding a check to get_temp_osds(), so that\nonly valid osd indices from primary_temp are used, and it falls back to\nusing the primary from pg_temp or the up set if it is invalid.\n\n[ idryomov: changelog ]"
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/ceph/osdmap.c"
                    ],
                    "versions": [
                        {
                            "version": "5e8d4d36bf23bb7baf027c479d54395840219928",
                            "lessThan": "505fc50b8ff8e687b7e3ef6866269dea27366224",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e8d4d36bf23bb7baf027c479d54395840219928",
                            "lessThan": "1c705fe8e59c6b16f48964973fb23c8ec4735b73",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e8d4d36bf23bb7baf027c479d54395840219928",
                            "lessThan": "dfe1877d351b99eb1b1a62a3fc2d174220e88e20",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e8d4d36bf23bb7baf027c479d54395840219928",
                            "lessThan": "e2ffeec85201b2bb748e99e12539ee1b92f62796",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e8d4d36bf23bb7baf027c479d54395840219928",
                            "lessThan": "6799d4a916ffcb3d450d8440f9fe0f0862f768d6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e8d4d36bf23bb7baf027c479d54395840219928",
                            "lessThan": "4f392fec075562dc93bb0c69f37423ca2af9b48f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e8d4d36bf23bb7baf027c479d54395840219928",
                            "lessThan": "e009c5f0ad634c62f5c48a41f1f3c019ecf52555",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5e8d4d36bf23bb7baf027c479d54395840219928",
                            "lessThan": "3660b98d1204b419f6a77e9a295f148dcf38d042",
                            "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/ceph/osdmap.c"
                    ],
                    "versions": [
                        {
                            "version": "3.15",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.15",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.266",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.217",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.184",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.153",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.105",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.46",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.10",
                            "lessThanOrEqual": "7.1.*",
                            "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": "3.15",
                                    "versionEndExcluding": "5.10.266"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "5.15.217"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                },
                                {
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                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "6.12.105"
                                },
                                {
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                                    "versionEndExcluding": "7.1.10"
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.15",
                                    "versionEndExcluding": "7.2"
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/505fc50b8ff8e687b7e3ef6866269dea27366224"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1c705fe8e59c6b16f48964973fb23c8ec4735b73"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dfe1877d351b99eb1b1a62a3fc2d174220e88e20"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e2ffeec85201b2bb748e99e12539ee1b92f62796"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6799d4a916ffcb3d450d8440f9fe0f0862f768d6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4f392fec075562dc93bb0c69f37423ca2af9b48f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e009c5f0ad634c62f5c48a41f1f3c019ecf52555"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3660b98d1204b419f6a77e9a295f148dcf38d042"
                }
            ],
            "title": "libceph: Avoid using invalid osd indices from primary_temp",
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}