{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2025-71295",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-05-06T11:31:45.510Z",
        "datePublished": "2026-05-06T11:32:25.917Z",
        "dateUpdated": "2026-05-23T16:03:35.695Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:03:35.695Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/buffer: add alert in try_to_free_buffers() for folios without buffers\n\ntry_to_free_buffers() can be called on folios with no buffers attached\nwhen filemap_release_folio() is invoked on a folio belonging to a mapping\nwith AS_RELEASE_ALWAYS set but no release_folio operation defined.\n\nIn such cases, folio_needs_release() returns true because of the\nAS_RELEASE_ALWAYS flag, but the folio has no private buffer data. This\ncauses try_to_free_buffers() to call drop_buffers() on a folio with no\nbuffers, leading to a null pointer dereference.\n\nAdding a check in try_to_free_buffers() to return early if the folio has no\nbuffers attached, with WARN_ON_ONCE() to alert about the misconfiguration.\nThis provides defensive hardening."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "d0eafc763135508be118dac208887a26c0adb74d",
                            "lessThan": "1b111a69a6e33a922622bf9870e4e63fb2b649c8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4fa966f03b7401ceacd4ffd7227197afb2b8376",
                            "lessThan": "c1b6227555c52781178132b7a06466711855795c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4fa966f03b7401ceacd4ffd7227197afb2b8376",
                            "lessThan": "727e5140e0cf83b4ce6a11b89bb73bff5d96f8f3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4fa966f03b7401ceacd4ffd7227197afb2b8376",
                            "lessThan": "42c32d7571ccd8ef32351cac506f00b0fae99fd2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4fa966f03b7401ceacd4ffd7227197afb2b8376",
                            "lessThan": "c6246ca15999053d2632fbcc7b86e6eef7f077cb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b4fa966f03b7401ceacd4ffd7227197afb2b8376",
                            "lessThan": "b68f91ef3b3fe82ad78c417de71b675699a8467c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.1.72",
                            "lessThan": "6.1.165",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "6.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.6",
                            "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": "6.18.16",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.6",
                            "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": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.1.72",
                                    "versionEndExcluding": "6.1.165"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "6.6.128"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "6.12.75"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "6.18.16"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "6.19.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.6",
                                    "versionEndExcluding": "7.0"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1b111a69a6e33a922622bf9870e4e63fb2b649c8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c1b6227555c52781178132b7a06466711855795c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/727e5140e0cf83b4ce6a11b89bb73bff5d96f8f3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/42c32d7571ccd8ef32351cac506f00b0fae99fd2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c6246ca15999053d2632fbcc7b86e6eef7f077cb"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b68f91ef3b3fe82ad78c417de71b675699a8467c"
                }
            ],
            "title": "fs/buffer: add alert in try_to_free_buffers() for folios without buffers",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}