{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-64549",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T15:36:31.795Z",
        "datePublished": "2026-07-27T20:10:38.894Z",
        "dateUpdated": "2026-08-17T04:57:26.570Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T04:57:26.570Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()\n\nbpa10x_setup() sends the vendor command 0xfc0e and passes the response\nto bt_dev_info() and hci_set_fw_info() as a \"%s\" string starting at\nskb->data + 1, without checking the length:\n\n\tbt_dev_info(hdev, \"%s\", (char *)(skb->data + 1));\n\thci_set_fw_info(hdev, \"%s\", skb->data + 1);\n\nA device that returns a one-byte response (status only) leaves\nskb->data + 1 past the end of the data, and the %s walk reads adjacent\nslab memory until it meets a NUL. The same happens when the payload is\nnot NUL-terminated within skb->len. The out-of-bounds bytes end up in\nthe kernel log and the firmware-info debugfs file.\n\nPrint the revision string with a bounded \"%.*s\" limited to skb->len - 1\ninstead. This keeps the string readable for well-behaved devices while\nnever reading past the received data, and does not fail setup, so a\ndevice returning a short or unterminated response keeps working."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/bluetooth/bpa10x.c"
                    ],
                    "versions": [
                        {
                            "version": "ddd68ec8f4847b460c9f580076eafe13b031a6fd",
                            "lessThan": "1813add71e386f77b3040e6c8dc9b7b3ff965a6c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ddd68ec8f4847b460c9f580076eafe13b031a6fd",
                            "lessThan": "bd56c23f1f8681a2857ee924a8bd3abf87c8913b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ddd68ec8f4847b460c9f580076eafe13b031a6fd",
                            "lessThan": "7a64f39ebe1bacd9004a62eceadac0b122ec3cc2",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ddd68ec8f4847b460c9f580076eafe13b031a6fd",
                            "lessThan": "f80b4afe893dffa9fabdbf80fb4d6782b24a6793",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ddd68ec8f4847b460c9f580076eafe13b031a6fd",
                            "lessThan": "4b4008dda1d0c6e598d7865631ad4eda63a560f0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ddd68ec8f4847b460c9f580076eafe13b031a6fd",
                            "lessThan": "bfc9e7be289df11e8e38c98cd78019d67fdd0bd5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ddd68ec8f4847b460c9f580076eafe13b031a6fd",
                            "lessThan": "a8e169d308775039200bb9c905c7ce420db6e8c5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ddd68ec8f4847b460c9f580076eafe13b031a6fd",
                            "lessThan": "dd068ef044128db655f48323a4acfd5907e04903",
                            "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/bluetooth/bpa10x.c"
                    ],
                    "versions": [
                        {
                            "version": "4.4",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "4.4",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.261",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "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": "4.4",
                                    "versionEndExcluding": "5.10.261"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "5.15.212"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.1.178"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.6.145"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.12.97"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "6.18.40"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "7.1.5"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "4.4",
                                    "versionEndExcluding": "7.2"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/1813add71e386f77b3040e6c8dc9b7b3ff965a6c"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bd56c23f1f8681a2857ee924a8bd3abf87c8913b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7a64f39ebe1bacd9004a62eceadac0b122ec3cc2"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f80b4afe893dffa9fabdbf80fb4d6782b24a6793"
                },
                {
                    "url": "https://git.kernel.org/stable/c/4b4008dda1d0c6e598d7865631ad4eda63a560f0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/bfc9e7be289df11e8e38c98cd78019d67fdd0bd5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a8e169d308775039200bb9c905c7ce420db6e8c5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/dd068ef044128db655f48323a4acfd5907e04903"
                }
            ],
            "title": "Bluetooth: bpa10x: avoid OOB read of revision string in bpa10x_setup()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}