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

Vulnerability from cvelistv5 – Published: 2026-07-19 14:55 – Updated: 2026-08-05 12:37
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 CPE status
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)
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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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      "cve": "CVE-2026-63930",
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      "product_status:recommended": "250",
      "source": "SUSE CSAF VEX",
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      "title": "SUSE CVE CVE-2026-63930",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-63930.json",
      "version": "10"
    }
  }
}



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Tags
Taxonomy of the tags.





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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.