{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-68175",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-30T09:28:09.372Z",
        "datePublished": "2026-08-10T11:59:45.965Z",
        "dateUpdated": "2026-08-19T16:30:39.826Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-19T16:30:39.826Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix resource leak on mmiotrace trace_pipe close\n\nThe mmiotrace tracer was added May 12th 2008. At that time, resources\ncreated in pipe_open() could not be freed because there was not\npipe_close function pointer of the tracer. The pipe_close function pointer\nwas added in December 7th, 2009, but the mmiotrace tracer was not updated.\n\nmmio_pipe_open() allocates a header_iter and takes a pci_dev reference\nwhen trace_pipe is opened. mmio_close() frees them, but it was only\nwired to the tracer's .close callback.\n\ntracing_release_pipe() invokes .pipe_close, not .close, when the\ntrace_pipe file is released. As a result, closing trace_pipe with the\nmmiotrace tracer active leaked the header_iter allocation and left a\nstale pci_dev reference.\n\nSet .pipe_close to mmio_close, matching how function_graph wires both\ncallbacks to the same handler.\n\nNote, if the trace_pipe is read to completion, it will clean up the\nresources, but if one were to run:\n\n  # head -n 1 /sys/kernel/tracing/trace_pipe\n VERSION 20070824\n\nOver and over again, it would trigger a massive leak."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/trace/trace_mmiotrace.c"
                    ],
                    "versions": [
                        {
                            "version": "c521efd1700a8c0f7ce26f011f5eaecca17fabfa",
                            "lessThan": "7871128ea41217fa6a58bbbcb44cb0d2e9e60966",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c521efd1700a8c0f7ce26f011f5eaecca17fabfa",
                            "lessThan": "1d0b59e2b203c02149d8f63607329debe36b3ec5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c521efd1700a8c0f7ce26f011f5eaecca17fabfa",
                            "lessThan": "581ac13e12e77d6c64f8719083bdf95209308919",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c521efd1700a8c0f7ce26f011f5eaecca17fabfa",
                            "lessThan": "f9e6dfe341fb31c95b9655eb6b1db8b3ae090817",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c521efd1700a8c0f7ce26f011f5eaecca17fabfa",
                            "lessThan": "594e1cf3f736779a535873fd5988162d827bfe4f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c521efd1700a8c0f7ce26f011f5eaecca17fabfa",
                            "lessThan": "cf5a82bef623b969a609f2b7e392d06dbae34aa6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c521efd1700a8c0f7ce26f011f5eaecca17fabfa",
                            "lessThan": "cb459fec4f7b13caf646101ff076e94ef38434d8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c521efd1700a8c0f7ce26f011f5eaecca17fabfa",
                            "lessThan": "c1d87e724ae55e781b7cc7ccafb34d9e668582b2",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/trace/trace_mmiotrace.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.33",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.33",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.265",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.216",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.183",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.148",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.101",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.42",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.6",
                            "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": "2.6.33",
                                    "versionEndExcluding": "5.10.265"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "5.15.216"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
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                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "6.6.148"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "6.12.101"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "6.18.42"
                                },
                                {
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                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "7.1.6"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.33",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
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                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/7871128ea41217fa6a58bbbcb44cb0d2e9e60966"
                },
                {
                    "url": "https://git.kernel.org/stable/c/1d0b59e2b203c02149d8f63607329debe36b3ec5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/581ac13e12e77d6c64f8719083bdf95209308919"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f9e6dfe341fb31c95b9655eb6b1db8b3ae090817"
                },
                {
                    "url": "https://git.kernel.org/stable/c/594e1cf3f736779a535873fd5988162d827bfe4f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cf5a82bef623b969a609f2b7e392d06dbae34aa6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cb459fec4f7b13caf646101ff076e94ef38434d8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c1d87e724ae55e781b7cc7ccafb34d9e668582b2"
                }
            ],
            "title": "tracing: Fix resource leak on mmiotrace trace_pipe close",
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                "engine": "bippy-1.2.0"
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    }
}