{"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"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.1.176"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.6.143"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.12.93"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "6.18.35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.0.12"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10", "versionEndExcluding": "7.1"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.9.5"}]}]}], "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", "x_generator": {"engine": "bippy-1.2.0"}}}}

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