CVE-2026-80654 (GCVE-0-2026-80654)

Vulnerability from cvelistv5 – Published: 2026-08-28 06:49 – Updated: 2026-08-28 06:49
VLAI
Title
soc: xilinx: Shutdown and free rx mailbox channel
Summary
In the Linux kernel, the following vulnerability has been resolved: soc: xilinx: Shutdown and free rx mailbox channel A mbox rx channel is requested using mbox_request_channel_byname() in probe. In remove callback, the rx mailbox channel is cleaned up when the rx_chan is NULL due to incorrect condition check. The mailbox channel is not shutdown and it can receive messages even after the device removal. This leads to use after free. Also the channel resources are not freed. Fix this by checking the rx_chan correctly.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df , < b0f748c563921a7918c78e6a599cefd54de7d688 (git)
Affected: ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df , < a83e77d1e52c01c50096e6e97c57d34e0590d628 (git)
Affected: ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df , < b5d2240c2c7bc8370e7ba54a2e1fe3919f55aee5 (git)
Affected: ffdbae28d9d1af70b7d63ffd7827e9795cd8d0df , < fdee7c66c0d7b6869c36b9f9a915abf29ab5b550 (git)
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Linux Linux Affected: 5.6
Unaffected: 0 , < 5.6 (semver)
Unaffected: 6.12.97 , ≤ 6.12.* (semver)
Unaffected: 6.18.40 , ≤ 6.18.* (semver)
Unaffected: 7.1.5 , ≤ 7.1.* (semver)
Unaffected: 7.2 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsoc: xilinx: Shutdown and free rx mailbox channel\n\nA mbox rx channel is requested using mbox_request_channel_byname() in\nprobe. In remove callback, the rx mailbox channel is cleaned up when the\nrx_chan is NULL due to incorrect condition check. The mailbox channel is\nnot shutdown and it can receive messages even after the device removal.\nThis leads to use after free. Also the channel resources are not freed.\nFix this by checking the rx_chan correctly."
        }
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      "providerMetadata": {
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        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "title": "soc: xilinx: Shutdown and free rx mailbox channel",
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    "datePublished": "2026-08-28T06:49:01.311Z",
    "dateReserved": "2026-08-26T14:34:25.780Z",
    "dateUpdated": "2026-08-28T06:49:01.311Z",
    "state": "PUBLISHED"
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-08-31T10:04:36+00:00",
      "cve": "CVE-2026-80654",
      "id": "CVE-2026-80654",
      "initial_release_date": "2026-08-28T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: soc: xilinx: Shutdown and free rx mailbox channel",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-80654.json",
      "version": "3"
    }
  }
}



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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.