{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-63967",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-07-19T07:54:57.024Z",
        "datePublished": "2026-07-19T14:55:54.999Z",
        "dateUpdated": "2026-07-19T14:55:54.999Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-19T14:55:54.999Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer\n\nThe tagged FIFO path declares iio_buff on the stack with __aligned(8)\nbut no initializer, but there is a hole in the structure, which will\nthen leak to userspace as ST_LSM6DSX_SAMPLE_SIZE bytes (6) will be\ncopied, but the space between that and the timestamp are not\ninitialized.\n\nCommit c14edb4d0bdc (\"iio:imu:st_lsm6dsx Fix alignment and data leak\nissues\") moved the untagged FIFO path to a kzalloc'd buffer in hw->scan,\nbut for the tagged path it only added the alignment qualifier and not\nthe initializer :(\n\nFix this by just zero-initializing the structure on the stack."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "c14edb4d0bdc53f969ea84c7f384472c28b1a9f8",
                            "lessThan": "ff8d3c088b77b11782f2c3b97e37425be050e8de",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c14edb4d0bdc53f969ea84c7f384472c28b1a9f8",
                            "lessThan": "fe1a7f99e72ebd2880515332b79b8c256be22aca",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c14edb4d0bdc53f969ea84c7f384472c28b1a9f8",
                            "lessThan": "babf1943a40bb5669db57d30ca16c22504b18e07",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c14edb4d0bdc53f969ea84c7f384472c28b1a9f8",
                            "lessThan": "d42ac0bfb6a16617c62a59d53706579c7fadbfa6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c14edb4d0bdc53f969ea84c7f384472c28b1a9f8",
                            "lessThan": "3147b303b8c7d9f91da4b849ece33b45048f5eaf",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c14edb4d0bdc53f969ea84c7f384472c28b1a9f8",
                            "lessThan": "e6bb3a49c5f9de870ea95e69775df785728e3366",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c14edb4d0bdc53f969ea84c7f384472c28b1a9f8",
                            "lessThan": "890d0312d5f94be43eac21f5a34d3bccc60d051b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c14edb4d0bdc53f969ea84c7f384472c28b1a9f8",
                            "lessThan": "c9d8e9adaa63150ef7e833480b799d0bab83a276",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a42ca3b182ccb766666a0be1053921cba190e2de",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.9.5",
                            "lessThan": "5.10",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/iio/imu/st_lsm6dsx/st_lsm6dsx_buffer.c"
                    ],
                    "versions": [
                        {
                            "version": "5.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.10",
                            "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": "5.10",
                                    "versionEndExcluding": "5.10.259"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "5.10",
                                    "versionEndExcluding": "5.15.210"
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                                    "versionEndExcluding": "7.1"
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/ff8d3c088b77b11782f2c3b97e37425be050e8de"
                },
                {
                    "url": "https://git.kernel.org/stable/c/fe1a7f99e72ebd2880515332b79b8c256be22aca"
                },
                {
                    "url": "https://git.kernel.org/stable/c/babf1943a40bb5669db57d30ca16c22504b18e07"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d42ac0bfb6a16617c62a59d53706579c7fadbfa6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/3147b303b8c7d9f91da4b849ece33b45048f5eaf"
                },
                {
                    "url": "https://git.kernel.org/stable/c/e6bb3a49c5f9de870ea95e69775df785728e3366"
                },
                {
                    "url": "https://git.kernel.org/stable/c/890d0312d5f94be43eac21f5a34d3bccc60d051b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c9d8e9adaa63150ef7e833480b799d0bab83a276"
                }
            ],
            "title": "iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer",
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}