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GHSA-Q99R-WQVW-GC4X

Vulnerability from github – Published: 2025-11-12 12:30 – Updated: 2025-11-12 12:30

Details

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.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-40177"
  ],
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    "github_reviewed": false,
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    "nvd_published_at": "2025-11-12T11:15:48Z",
    "severity": null
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\naccel/qaic: Fix bootlog initialization ordering\n\nAs soon as we queue MHI buffers to receive the bootlog from the device,\nwe could be receiving data. Therefore all the resources needed to\nprocess that data need to be setup prior to queuing the buffers.\n\nWe currently initialize some of the resources after queuing the buffers\nwhich creates a race between the probe() and any data that comes back\nfrom the device. If the uninitialized resources are accessed, we could\nsee page faults.\n\nFix the init ordering to close the race.",
  "id": "GHSA-q99r-wqvw-gc4x",
  "modified": "2025-11-12T12:30:28Z",
  "published": "2025-11-12T12:30:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-40177"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/48814afc7372f96a9584125c8508dffc88d1d378"
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/646868e6962b14e25ae7462fdd1fb061b40c1f16"
    },
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CVE-2025-40177 (GCVE-0-2025-40177)

Vulnerability from cvelistv5 – Published: 2025-11-12 10:53 – Updated: 2026-05-11 21:44

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.

Severity

No CVSS data available.

Assigner

Linux CNA under the mitre root

CNA scorecard D 53/100 over 7033 records in the last 180 days details

References

3 references

URL	Tags
https://git.kernel.org/stable/c/646868e6962b14e25…
https://git.kernel.org/stable/c/48814afc7372f96a9…
https://git.kernel.org/stable/c/fd6e385528d8f8599…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 5f8df5c6def641c164ed1b673d47a41fdd0013f8 , < 646868e6962b14e25ae7462fdd1fb061b40c1f16 (git) Affected: 5f8df5c6def641c164ed1b673d47a41fdd0013f8 , < 48814afc7372f96a9584125c8508dffc88d1d378 (git) Affected: 5f8df5c6def641c164ed1b673d47a41fdd0013f8 , < fd6e385528d8f85993b7bfc6430576136bb14c65 (git)
Linux	Linux	Affected: 6.10 Unaffected: 0 , < 6.10 (semver) Unaffected: 6.12.55 , ≤ 6.12.* (semver) Unaffected: 6.17.5 , ≤ 6.17.* (semver) Unaffected: 6.18 , ≤ * (original_commit_for_fix)

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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.

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