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Use of Uninitialized Resource The advisory has been revoked - it doesn't affect any version of package kernel  (opens in a new tab)

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  • Snyk IDSNYK-CENTOS10-KERNEL-18158857
  • published22 Jul 2026
  • disclosed19 Jul 2026
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Introduced: 19 Jul 2026

NewCVE-2026-63934  (opens in a new tab)
CWE-908  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel package and not the kernel package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

iio: gyro: itg3200: fix i2c read into the wrong stack location

itg3200_read_all_channels() takes __be16 *buf' as a parameter and fills the i2c_msg destination as (char *)&buf'. Since buf' is the parameter (a pointer), &buf' is the address of the local pointer slot on the stack of itg3200_read_all_channels(), not the address of the caller's scan buffer. The (char *) cast hides the type mismatch.

i2c_transfer() therefore writes ITG3200_SCAN_ELEMENTS * sizeof(s16) = 8 bytes into the parameter's stack slot, which is discarded when the function returns. The caller's scan buffer in itg3200_trigger_handler() is never written to, so iio_push_to_buffers_with_timestamp() pushes uninitialised stack contents to userspace via /dev/iio:deviceX every scan -- both a functional bug (no actual gyroscope or temperature data is delivered through the triggered buffer) and an information leak.

The non-buffered read_raw() path is unaffected: it goes through itg3200_read_reg_s16() which uses `&out' on a local s16 value, where that is correct.

Drop the spurious `&' so the i2c read writes into the caller's buffer.