CVE-2026-63966

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{}

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{"bugzilla": {"description": "kernel: iio: imu: adis16550: fix stack leak in trigger handler", "id": "2502459", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2502459"}, "csaw": false, "cwe": "CWE-908", "details": ["In the Linux kernel, the following vulnerability has been resolved:\niio: imu: adis16550: fix stack leak in trigger handler\nadis16550_trigger_handler() declares the scan data array on the stack\nwithout initializing it. The memcpy() at the bottom fills only the\nfirst 28 bytes (TEMP + 6 channels of GYRO/ACCEL data), and\niio_push_to_buffers_with_timestamp() writes the s64 timestamp at the\n8-byte-aligned offset 32. Bytes 28-31 remain uninitialized stack data\nwhich leaks to userspace on ever trigger.\nFix this all by just zero-initializing the structure on the stack.", "A flaw was found in the Linux kernel's adis16550 Industrial Input/Output (IIO) Inertial Measurement Unit (IMU) driver. The adis16550_trigger_handler() function fails to fully initialize a stack-allocated data array. This oversight allows uninitialized stack memory to be exposed to userspace, leading to information disclosure with every trigger of the driver."], "name": "CVE-2026-63966", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-19T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63966\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63966\nhttps://lore.kernel.org/linux-cve-announce/2026071958-CVE-2026-63966-4f6a@gregkh/T"]}

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