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

Vulnerability from cvelistv5 – Published: 2026-05-06 11:27 – Updated: 2026-05-06 11:27
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 ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
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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{
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          "programFiles": [
            "drivers/net/wan/fsl_ucc_hdlc.c"
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          "vendor": "Linux",
          "versions": [
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              "version": "0",
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              "version": "5.10.252",
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            },
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              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.202",
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              "lessThanOrEqual": "6.6.*",
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              "version": "7.0",
              "versionType": "original_commit_for_fix"
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        }
      ],
      "cpeApplicability": [
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: wan/fsl_ucc_hdlc: Fix dma_free_coherent() in uhdlc_memclean()\n\nThe priv-\u003erx_buffer and priv-\u003etx_buffer are alloc\u0027d together as\ncontiguous buffers in uhdlc_init() but freed as two buffers in\nuhdlc_memclean().\n\nChange the cleanup to only call dma_free_coherent() once on the whole\nbuffer."
        }
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      "providerMetadata": {
        "dateUpdated": "2026-05-06T11:27:31.708Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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    "dateReserved": "2026-05-01T14:12:55.989Z",
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    "state": "PUBLISHED"
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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.