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NFSD: Prevent lock owner use-after-free during client teardown

Exact source revision recorded 23 Oct 2026 15:48:27 UTC. It does not establish the source's current position. Latest evidence.

cve-program · CVE-2026-89662

Published

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/nfsd/nfs4state.c"
                    ],
                    "versions": [
                        {
                            "version": "68ef3bc3166468678d5e1fdd216628c35bd1186f",
                            "lessThan": "42d7954b0a1907d4ef122aef94561952a033cdc3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "68ef3bc3166468678d5e1fdd216628c35bd1186f",
                            "lessThan": "bb38ff8b4dafbbd1781ad37cd96722fdf2cd972a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "68ef3bc3166468678d5e1fdd216628c35bd1186f",
                            "lessThan": "b8bad5a11416b26cc7fd4b18fba46d75ff636558",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "68ef3bc3166468678d5e1fdd216628c35bd1186f",
                            "lessThan": "1ce74d1b7770e69735e8f8e509807af4ff9c8ee7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "68ef3bc3166468678d5e1fdd216628c35bd1186f",
                            "lessThan": "a6ead6fff3a7d03e49845f048f7000a2e0d34431",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "68ef3bc3166468678d5e1fdd216628c35bd1186f",
                            "lessThan": "4804c58f73a80d12df1de323bf97a164f6ee8743",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "68ef3bc3166468678d5e1fdd216628c35bd1186f",
                            "lessThan": "8cf4ff0a7c083dd5e0067f517d63979b74b66649",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "68ef3bc3166468678d5e1fdd216628c35bd1186f",
                            "lessThan": "5e2fa29d223a9a1e6a948e40b109d09081d1decd",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "e294c4c2d33b7307a89cdf31bec08a112d6a9297",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "797bfd05d4040fbf766198b3cfcc1838002cc890",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0f44e9da465ea259b6c9f31a627f3c50a16e1679",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "4.9.91",
                            "lessThan": "4.10",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.14.31",
                            "lessThan": "4.15",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.15.14",
                            "lessThan": "4.16",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

Linux

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "fs/nfsd/nfs4state.c"
                    ],
                    "versions": [
                        {
                            "version": "4.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.109",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.50",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.4",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 9 Nov 04:29 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current