{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-72117",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-09T03:40:39.906Z",
        "datePublished": "2026-08-15T05:52:56.991Z",
        "dateUpdated": "2026-08-19T16:36:08.847Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-19T16:36:08.847Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: bcm: fix data race on rx_stamp/rx_ifindex in bcm_rx_handler()\n\nFor an rx op subscribed on all interfaces (ifindex == 0), the same op\nis registered once in the shared per-netns wildcard filter list, so\nbcm_rx_handler() can run concurrently on different CPUs for frames\narriving on different net devices.\n\nop->rx_stamp and op->rx_ifindex were written before bcm_rx_update_lock was\ntaken, allowing concurrent writers to race each other - including a torn\nstore of the 64-bit rx_stamp on 32-bit platforms.\n\nBeyond a torn store bcm_send_to_user() must report the timestamp/ifindex\nof the very same frame whose content it is delivering. So the assignment\nis placed in the same unbroken bcm_rx_update_lock section as the content\ncomparison.\n\nAs a side effect, the RTR-request frame feature (which never reach\nbcm_send_to_user()) no longer updates rx_stamp/rx_ifindex, since only\nthe notification path needs them."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/can/bcm.c"
                    ],
                    "versions": [
                        {
                            "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
                            "lessThan": "b64f60c468d149aca22ea56bb842b9730215aaa5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
                            "lessThan": "c8a5d7cb095d3b12bd9dcf752d6ca0ff50872ac5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
                            "lessThan": "4b97410f4bba18d2ee2784c8e089104f387bc27c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
                            "lessThan": "5f246b96ab47523ec9b8ea870b5c567a3cb1eb1c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
                            "lessThan": "656ff69ef235699035e57d9e1ae417e62a38aa7f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
                            "lessThan": "136de17f38630307991c59aa7080012a99451783",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
                            "lessThan": "c312b750bb5ac3348cfc85dab25e90937bd4d251",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ffd980f976e7fd666c2e61bf8ab35107efd11828",
                            "lessThan": "58fd6cbc8541216af1d7ed272ea7ac2b66d50fd8",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/can/bcm.c"
                    ],
                    "versions": [
                        {
                            "version": "2.6.25",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "2.6.25",
                            "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": "7.1.5",
                            "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": "2.6.25",
                                    "versionEndExcluding": "5.10.265"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "5.15.216"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "6.1.183"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "6.6.148"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "6.12.101"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "6.18.42"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "2.6.25",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/b64f60c468d149aca22ea56bb842b9730215aaa5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c8a5d7cb095d3b12bd9dcf752d6ca0ff50872ac5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4b97410f4bba18d2ee2784c8e089104f387bc27c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5f246b96ab47523ec9b8ea870b5c567a3cb1eb1c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/656ff69ef235699035e57d9e1ae417e62a38aa7f"
                },
                {
                    "url": "https://git.kernel.org/stable/c/136de17f38630307991c59aa7080012a99451783"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c312b750bb5ac3348cfc85dab25e90937bd4d251"
                },
                {
                    "url": "https://git.kernel.org/stable/c/58fd6cbc8541216af1d7ed272ea7ac2b66d50fd8"
                }
            ],
            "title": "can: bcm: fix data race on rx_stamp/rx_ifindex in bcm_rx_handler()",
            "x_generator": {
                "engine": "bippy-1.2.0"
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        }
    }
}