{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-98777",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-25T10:25:14.369Z",
        "datePublished": "2026-10-18T15:48:13.993Z",
        "dateUpdated": "2026-10-21T12:56:50.708Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-21T12:56:50.708Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbinder: fix leaked fd fixups on TF_UPDATE_TXN supersede\n\nWhen a TF_UPDATE_TXN transaction supersedes a pending async transaction\nin a frozen process, the outdated transaction is freed with kfree()\ndirectly. This skips binder_free_txn_fixups(), leaking all\nbinder_txn_fd_fixup entries and their fget()'d struct file references.\n\nThe leaked file refcounts never reach zero, so the struct file objects\nare permanently pinned in memory. They survive process exit and\naccumulate across invocations until file-max exhaustion.\n\nEvery other transaction cleanup path (binder_free_transaction(),\nbinder_transaction() error paths, binder_release_work()) correctly\ncalls binder_free_txn_fixups(). Add the missing call before kfree()\nin the t_outdated cleanup block."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/android/binder.c"
                    ],
                    "versions": [
                        {
                            "version": "9864bb4801331daa48514face9d0f4861e4d485b",
                            "lessThan": "a7329ea53d04f0c6135d02905810cd6f42acdf45",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9864bb4801331daa48514face9d0f4861e4d485b",
                            "lessThan": "7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9864bb4801331daa48514face9d0f4861e4d485b",
                            "lessThan": "1299cb3fb061598496086fc87ff291057831148e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9864bb4801331daa48514face9d0f4861e4d485b",
                            "lessThan": "6673f4f21e2fddfed0abe1eb9045cc958e6db130",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9864bb4801331daa48514face9d0f4861e4d485b",
                            "lessThan": "c4c02084d6687d5cd5edccaf52cc45e5160f1184",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/android/binder.c"
                    ],
                    "versions": [
                        {
                            "version": "6.0",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.0",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.113",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.56",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.10",
                            "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": "6.0",
                                    "versionEndExcluding": "6.6.160"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.12.113"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "6.18.56"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.2.10"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.0",
                                    "versionEndExcluding": "7.3"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/a7329ea53d04f0c6135d02905810cd6f42acdf45"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1299cb3fb061598496086fc87ff291057831148e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6673f4f21e2fddfed0abe1eb9045cc958e6db130"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c4c02084d6687d5cd5edccaf52cc45e5160f1184"
                }
            ],
            "title": "binder: fix leaked fd fixups on TF_UPDATE_TXN supersede",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}