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accel/qaic: Fix bootlog initialization ordering

Type: advisorySources: OSV

In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Fix bootlog initialization ordering As soon as we queue MHI buffers to receive the bootlog from the device, we could be receiving data. Therefore all the resources needed to process that data need to be setup prior to queuing the buffers. We currently initialize some of the resources after queuing the buffers which creates a race between the probe() and any data that comes back from the device. If the uninitialized resources are accessed, we could see page faults. Fix the init ordering to close the race.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.12.55, 6.17.5
CVEs
CVE-2025-40177
Confirmed fixed CVEs
Not specified
Updated in this feed
4 Nov 2026, 18:57 UTC · Revision 1

Source evidence

accel/qaic: Fix bootlog initialization ordering

core-osv · Original source

Published 12 Nov 2025, 10:53 UTC

In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Fix bootlog initialization ordering As soon as we queue MHI buffers to receive the bootlog from the device, we could be receiving data. Therefore all the resources needed to process that data need to be setup prior to queuing the buffers. We currently initialize some of the resources after queuing the buffers which creates a race between the probe() and any data that comes back from the device. If the uninitialized resources are accessed, we could see page faults. Fix the init ordering to close the race.

osv:CVE-2025-40177

Kernel

Fixed versions: 6.12.55, 6.17.5

Complete source record
{
  "id": "a0c2b8d896a7d9867ccb54cd048d8d0e132d55146b4f3b04514135e004b68ed2",
  "url": "https://osv.dev/vulnerability/CVE-2025-40177",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "accel/qaic: Fix bootlog initialization ordering",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Fix bootlog initialization ordering As soon as we queue MHI buffers to receive the bootlog from the device, we could be receiving data. Therefore all the resources needed to process that data need to be setup prior to queuing the buffers. We currently initialize some of the resources after queuing the buffers which creates a race between the probe() and any data that comes back from the device. If the uninitialized resources are accessed, we could see page faults. Fix the init ordering to close the race.",
    "evidence": "osv:CVE-2025-40177",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.55",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.17.5",
            "evidence": "/affected/1/ranges"
          }
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        "affected_versions": []
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    "severity": "unknown",
    "structured": {
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      "aliases": [
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          "ranges": [
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              "type": "ECOSYSTEM",
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                  "introduced": "6.10.0"
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40177.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:38.510479928Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/48814afc7372f96a9584125c8508dffc88d1d378",
        "https://git.kernel.org/stable/c/646868e6962b14e25ae7462fdd1fb061b40c1f16",
        "https://git.kernel.org/stable/c/fd6e385528d8f85993b7bfc6430576136bb14c65",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40177.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2025-40177",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40177.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2025-40177",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 505924,
  "published_at": "2025-11-12T10:53:50.737+00:00"
}