CVE-2026-43189 (GCVE-0-2026-43189)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-11 22:19
VLAI
Title
media: v4l2-async: Fix error handling on steps after finding a match
Summary
In the Linux kernel, the following vulnerability has been resolved: media: v4l2-async: Fix error handling on steps after finding a match Once an async connection is found to be matching with an fwnode, a sub-device may be registered (in case it wasn't already), its bound operation is called, ancillary links are created, the async connection is added to the sub-device's list of connections and removed from the global waiting connection list. Further on, the sub-device's possible own notifier is searched for possible additional matches. Fix these specific issues: - If v4l2_async_match_notify() failed before the sub-notifier handling, the async connection was unbound and its entry removed from the sub-device's async connection list. The latter part was also done in v4l2_async_match_notify(). - The async connection's sd field was only set after creating ancillary links in v4l2_async_match_notify(). It was however dereferenced in v4l2_async_unbind_subdev_one(), which was called on error path of v4l2_async_match_notify() failure.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 30aaed311f973f13ba13a0cd2dc0202f595fff48 (git)
Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 461733d83e67ba7e3a5b750c0d203f738e01244f (git)
Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < b02bcb378efa8af07827f49b3afcc5e825318c55 (git)
Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 2de0a3c8148fc3dbea21981e6569f550b3626119 (git)
Affected: 28a1295795d85a25f2e7dd391c43969e95fcb341 , < 7345d6d356336c448d6b9230ed8704f39679fd12 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.16 , ≤ 6.18.* (semver)
Unaffected: 6.19.6 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:35:51+00:00",
      "cve": "CVE-2026-43189",
      "id": "CVE-2026-43189",
      "initial_release_date": "2026-05-06T00:00:00+00:00",
      "product_status:known_affected": "124",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: media: v4l2-async: Fix error handling on steps after finding a match",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43189.json",
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      "cve": "CVE-2026-43189",
      "id": "CVE-2026-43189",
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      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-43189",
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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.


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.