CVE-2026-43149 (GCVE-0-2026-43149)

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-11 22:18
VLAI
Title
net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()
Summary
In the Linux kernel, the following vulnerability has been resolved: net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean() The priv->rx_buffer and priv->tx_buffer are alloc'd together as contiguous buffers in uhdlc_init() but freed as two buffers in uhdlc_memclean(). Change the cleanup to only call dma_free_coherent() once on the whole buffer.
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: c19b6d246a35627c3a69b2fa6bdece212b48214b , < 6496fb830cbb741d831225cc4e7e5601c6e42970 (git)
Affected: c19b6d246a35627c3a69b2fa6bdece212b48214b , < ba8d8429e5d6c36f9a654d2b96b9e043c43d92b4 (git)
Affected: c19b6d246a35627c3a69b2fa6bdece212b48214b , < 011ae5dd84dc9f05eb9b8e1adff44252ac776e7b (git)
Affected: c19b6d246a35627c3a69b2fa6bdece212b48214b , < 0f85a9655445e67bb0238cfc983d7c383b54938e (git)
Affected: c19b6d246a35627c3a69b2fa6bdece212b48214b , < 84b932bc9899d43e5829e6cf088b72d73a922b2b (git)
Affected: c19b6d246a35627c3a69b2fa6bdece212b48214b , < d8a522085d09b30aba1016daf1dddac37c0f0285 (git)
Affected: c19b6d246a35627c3a69b2fa6bdece212b48214b , < d68994e37ac3b285692559776e0279a88a3b5f8d (git)
Affected: c19b6d246a35627c3a69b2fa6bdece212b48214b , < 36bd7d5deef936c4e1e3cd341598140e5c14c1d3 (git)
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Linux Linux Affected: 4.8
Unaffected: 0 , < 4.8 (semver)
Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (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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                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T06:27:26+00:00",
      "cve": "CVE-2026-43149",
      "id": "CVE-2026-43149",
      "initial_release_date": "2026-05-06T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43149.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-09-11T01:20:33Z",
      "cve": "CVE-2026-43149",
      "id": "CVE-2026-43149",
      "initial_release_date": "2026-05-07T02:17:43Z",
      "product_status:known_affected": "714",
      "product_status:known_not_affected": "6",
      "product_status:recommended": "105",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-43149",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-43149.json",
      "version": "9"
    }
  }
}



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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.



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.