{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-97610",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-24T16:01:01.158Z",
        "datePublished": "2026-09-25T10:22:20.228Z",
        "dateUpdated": "2026-10-19T09:10:14.001Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:10:14.001Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnetfs: Fix uninitialized return value in netfs_unbuffered_write()\n\nIf preparation of the first subrequest fails,\nnetfs_unbuffered_write() exits its loop before ret is initialized. The\nempty-iterator check can do the same.\n\nFor synchronous writes, netfs_unbuffered_write_iter_locked() may then\nreturn an unrelated error instead of wreq->error. This is reachable\nthrough CIFS if cifs_prepare_write() fails to reopen the file or obtain\ncredits.\n\nInitialize ret to 0 so the caller returns wreq->error if no data was\nwritten, or the number of bytes already written otherwise.\n\nFound with Clang's -Wconditional-uninitialized."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/netfs/direct_write.c"
                    ],
                    "versions": [
                        {
                            "version": "72d08d2839649d1c5efbe375751f4473fa4486af",
                            "lessThan": "3d038eebdbd400c3bc4b66bd8aa0dff0c2bcce26",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a0b4c7a49137ed21279f354eb59f49ddae8dffc2",
                            "lessThan": "2e38d500471d097cda87d7d374bbc1b13493075d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a0b4c7a49137ed21279f354eb59f49ddae8dffc2",
                            "lessThan": "f18e8774f4d3137fa0a5fb8ffa83d59a719666d8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0c29f6d63122a0168d67cb8ecde5b4cf7fe4acb0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.18.17",
                            "lessThan": "6.18.53",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.7",
                            "lessThan": "6.20",
                            "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/netfs/direct_write.c"
                    ],
                    "versions": [
                        {
                            "version": "7.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "7.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "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": "6.18.17",
                                    "versionEndExcluding": "6.18.53"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "7.0",
                                    "versionEndExcluding": "7.2.7"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "7.0",
                                    "versionEndExcluding": "7.3"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19.7"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3d038eebdbd400c3bc4b66bd8aa0dff0c2bcce26"
                },
                {
                    "url": "https://git.kernel.org/stable/c/2e38d500471d097cda87d7d374bbc1b13493075d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f18e8774f4d3137fa0a5fb8ffa83d59a719666d8"
                }
            ],
            "title": "netfs: Fix uninitialized return value in netfs_unbuffered_write()",
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                "engine": "bippy-1.2.0"
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        }
    }
}