{"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"}}}}

{}

{}

{}

{}