{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-63934",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T07:54:57.022Z",
        "datePublished": "2026-07-19T14:55:32.681Z",
        "dateUpdated": "2026-07-19T14:55:32.681Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-19T14:55:32.681Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: gyro: itg3200: fix i2c read into the wrong stack location\n\nitg3200_read_all_channels() takes `__be16 *buf' as a parameter and\nfills the i2c_msg destination as `(char *)&buf'. Since `buf' is the\nparameter (a pointer), `&buf' is the address of the local pointer\nslot on the stack of itg3200_read_all_channels(), not the address\nof the caller's scan buffer. The (char *) cast hides the type\nmismatch.\n\ni2c_transfer() therefore writes ITG3200_SCAN_ELEMENTS * sizeof(s16)\n= 8 bytes into the parameter's stack slot, which is discarded when\nthe function returns. The caller's scan buffer in\nitg3200_trigger_handler() is never written to, so\niio_push_to_buffers_with_timestamp() pushes uninitialised stack\ncontents to userspace via /dev/iio:deviceX every scan -- both a\nfunctional bug (no actual gyroscope or temperature data is\ndelivered through the triggered buffer) and an information leak.\n\nThe non-buffered read_raw() path is unaffected: it goes through\nitg3200_read_reg_s16() which uses `&out' on a local s16 value,\nwhere that is correct.\n\nDrop the spurious `&' so the i2c read writes into the caller's\nbuffer."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/iio/gyro/itg3200_buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "9dbf091da080508e9f632d307f357beb79a0766b",
                            "lessThan": "90e809376b0f0d1ddec2eec954aecdd2a5b40b0e",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9dbf091da080508e9f632d307f357beb79a0766b",
                            "lessThan": "8654b5e2617819ff4f7c78071dfd0275e971a9b6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9dbf091da080508e9f632d307f357beb79a0766b",
                            "lessThan": "b64dd5f3b38911054cbcc570df617e3e8e75e562",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9dbf091da080508e9f632d307f357beb79a0766b",
                            "lessThan": "31bbd4b87dd6701fa10e03ba7f6268e49e178d16",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9dbf091da080508e9f632d307f357beb79a0766b",
                            "lessThan": "63203bd072b613c18c237b906b1c9d2dc4527337",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9dbf091da080508e9f632d307f357beb79a0766b",
                            "lessThan": "15a0b3f33ffb6c78b3de6f69b026ceb09b973dd1",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9dbf091da080508e9f632d307f357beb79a0766b",
                            "lessThan": "cfc3283859cfdeacadf80d5e6880bdf871ffeaa6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "9dbf091da080508e9f632d307f357beb79a0766b",
                            "lessThan": "6bdc3023d62ed5c7d591f0eb27a5adb37fb892ae",
                            "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/iio/gyro/itg3200_buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "3.9",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.9",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.259",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.210",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.176",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.143",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.93",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.35",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.12",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "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": "3.9",
                                    "versionEndExcluding": "5.10.259"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "5.15.210"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "6.1.176"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "6.6.143"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "6.12.93"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "6.18.35"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "7.0.12"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.9",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/90e809376b0f0d1ddec2eec954aecdd2a5b40b0e"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8654b5e2617819ff4f7c78071dfd0275e971a9b6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b64dd5f3b38911054cbcc570df617e3e8e75e562"
                },
                {
                    "url": "https://git.kernel.org/stable/c/31bbd4b87dd6701fa10e03ba7f6268e49e178d16"
                },
                {
                    "url": "https://git.kernel.org/stable/c/63203bd072b613c18c237b906b1c9d2dc4527337"
                },
                {
                    "url": "https://git.kernel.org/stable/c/15a0b3f33ffb6c78b3de6f69b026ceb09b973dd1"
                },
                {
                    "url": "https://git.kernel.org/stable/c/cfc3283859cfdeacadf80d5e6880bdf871ffeaa6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/6bdc3023d62ed5c7d591f0eb27a5adb37fb892ae"
                }
            ],
            "title": "iio: gyro: itg3200: fix i2c read into the wrong stack location",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}