CVE-2026-63930 (GCVE-0-2026-63930)

Vulnerability from cvelistv5 – Published: 2026-07-19 14:55 – Updated: 2026-07-20 13:41
VLAI
Title
iio: buffer: hw-consumer: fix use-after-free in error path
Summary
In the Linux kernel, the following vulnerability has been resolved: iio: buffer: hw-consumer: fix use-after-free in error path In the err_put_buffers cleanup path of iio_hw_consumer_alloc(), the code was using list_for_each_entry() to iterate through buffers while calling iio_buffer_put() which can free the current buffer if refcount drops to 0. The list_for_each_entry() loop macro then evaluates buf->head.next to continue iteration, accessing the freed buffer. Fix this by using list_for_each_entry_safe().
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 48b66f8f936f369bb1a43c12aedbfeb2975baf4c , < b71893c57730809c222766e5718bb33610f11963 (git)
Affected: 48b66f8f936f369bb1a43c12aedbfeb2975baf4c , < 2ff615fc455acda5425c4900160cbe11cfea4449 (git)
Affected: 48b66f8f936f369bb1a43c12aedbfeb2975baf4c , < d2759d49860b9a39b5cde2fb88e4b822ddf5f58f (git)
Affected: 48b66f8f936f369bb1a43c12aedbfeb2975baf4c , < 29783e6b6ec0b7152a15e53a063f17537e81177d (git)
Affected: 48b66f8f936f369bb1a43c12aedbfeb2975baf4c , < e965627f0d442bfcae3f496c90cb653fb0917a61 (git)
Affected: 48b66f8f936f369bb1a43c12aedbfeb2975baf4c , < a3763ae33476328cf8d661742deb9daec78eac96 (git)
Affected: 48b66f8f936f369bb1a43c12aedbfeb2975baf4c , < 9319c94f63ed10723afd738d79f5617daba87cc8 (git)
Affected: 48b66f8f936f369bb1a43c12aedbfeb2975baf4c , < 6f5ed4f2c7c83f33344e0ba179f72a12e5dad4a4 (git)
Create a notification for this product.
Linux Linux Affected: 4.16
Unaffected: 0 , < 4.16 (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": "2026-07-19T14:55:30.016Z",
    "dateReserved": "2026-07-19T07:54:57.021Z",
    "dateUpdated": "2026-07-20T13:41:38.070Z",
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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

Author Source Type Date Other

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.