CVE-2026-63967 (GCVE-0-2026-63967)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:55 – Updated: 2026-07-19 14:55
VLAI
Title
iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: imu: st_lsm6dsx: fix stack leak in tagged FIFO buffer The tagged FIFO path declares iio_buff on the stack with __aligned(8) but no initializer, but there is a hole in the structure, which will then leak to userspace as ST_LSM6DSX_SAMPLE_SIZE bytes (6) will be copied, but the space between that and the timestamp are not initialized. Commit c14edb4d0bdc ("iio:imu:st_lsm6dsx Fix alignment and data leak issues") moved the untagged FIFO path to a kzalloc'd buffer in hw->scan, but for the tagged path it only added the alignment qualifier and not the initializer :( Fix this by just zero-initializing the structure on the stack.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c14edb4d0bdc53f969ea84c7f384472c28b1a9f8 , < ff8d3c088b77b11782f2c3b97e37425be050e8de (git)
Affected: c14edb4d0bdc53f969ea84c7f384472c28b1a9f8 , < fe1a7f99e72ebd2880515332b79b8c256be22aca (git)
Affected: c14edb4d0bdc53f969ea84c7f384472c28b1a9f8 , < babf1943a40bb5669db57d30ca16c22504b18e07 (git)
Affected: c14edb4d0bdc53f969ea84c7f384472c28b1a9f8 , < d42ac0bfb6a16617c62a59d53706579c7fadbfa6 (git)
Affected: c14edb4d0bdc53f969ea84c7f384472c28b1a9f8 , < 3147b303b8c7d9f91da4b849ece33b45048f5eaf (git)
Affected: c14edb4d0bdc53f969ea84c7f384472c28b1a9f8 , < e6bb3a49c5f9de870ea95e69775df785728e3366 (git)
Affected: c14edb4d0bdc53f969ea84c7f384472c28b1a9f8 , < 890d0312d5f94be43eac21f5a34d3bccc60d051b (git)
Affected: c14edb4d0bdc53f969ea84c7f384472c28b1a9f8 , < c9d8e9adaa63150ef7e833480b799d0bab83a276 (git)
Affected: a42ca3b182ccb766666a0be1053921cba190e2de (git)
Affected: 5.9.5 , < 5.10 (semver)
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Linux Linux Affected: 5.10
Unaffected: 0 , < 5.10 (semver)
Unaffected: 5.10.259 , ≤ 5.10.* (semver)
Unaffected: 5.15.210 , ≤ 5.15.* (semver)
Unaffected: 6.1.176 , ≤ 6.1.* (semver)
Unaffected: 6.6.143 , ≤ 6.6.* (semver)
Unaffected: 6.12.93 , ≤ 6.12.* (semver)
Unaffected: 6.18.35 , ≤ 6.18.* (semver)
Unaffected: 7.0.12 , ≤ 7.0.* (semver)
Unaffected: 7.1 , ≤ * (original_commit_for_fix)
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    "datePublished": "2026-07-19T14:55:54.999Z",
    "dateReserved": "2026-07-19T07:54:57.024Z",
    "dateUpdated": "2026-07-19T14:55:54.999Z",
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.