{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "c14edb4d0bdc53f969ea84c7f384472c28b1a9f8"
            },
            {
              "fixed": "ff8d3c088b77b11782f2c3b97e37425be050e8de"
            },
            {
              "fixed": "fe1a7f99e72ebd2880515332b79b8c256be22aca"
            },
            {
              "fixed": "babf1943a40bb5669db57d30ca16c22504b18e07"
            },
            {
              "fixed": "d42ac0bfb6a16617c62a59d53706579c7fadbfa6"
            },
            {
              "fixed": "3147b303b8c7d9f91da4b849ece33b45048f5eaf"
            },
            {
              "fixed": "e6bb3a49c5f9de870ea95e69775df785728e3366"
            },
            {
              "fixed": "890d0312d5f94be43eac21f5a34d3bccc60d051b"
            },
            {
              "fixed": "c9d8e9adaa63150ef7e833480b799d0bab83a276"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "a42ca3b182ccb766666a0be1053921cba190e2de"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.9.5"
            },
            {
              "fixed": "5.10"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.10.0"
            },
            {
              "fixed": "5.10.259"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.210"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.176"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.143"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.93"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.35"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.0.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63967.json"
  },
  "details": "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-\u003escan,\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.",
  "id": "CVE-2026-63967",
  "modified": "2026-07-21T03:41:45.192974962Z",
  "published": "2026-07-19T14:55:54.999Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3147b303b8c7d9f91da4b849ece33b45048f5eaf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/890d0312d5f94be43eac21f5a34d3bccc60d051b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/babf1943a40bb5669db57d30ca16c22504b18e07"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c9d8e9adaa63150ef7e833480b799d0bab83a276"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d42ac0bfb6a16617c62a59d53706579c7fadbfa6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e6bb3a49c5f9de870ea95e69775df785728e3366"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fe1a7f99e72ebd2880515332b79b8c256be22aca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ff8d3c088b77b11782f2c3b97e37425be050e8de"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63967.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-63967"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.8.0",
  "summary": "iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer"
}