CVE-2025-40177 (GCVE-0-2025-40177)
Vulnerability from cvelistv5
Published
2025-11-12 10:53
Modified
2025-12-01 06:19
Severity ?
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 5f8df5c6def641c164ed1b673d47a41fdd0013f8
Version: 5f8df5c6def641c164ed1b673d47a41fdd0013f8
Version: 5f8df5c6def641c164ed1b673d47a41fdd0013f8
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          "programFiles": [
            "drivers/accel/qaic/qaic_debugfs.c"
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          "value": "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."
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    "datePublished": "2025-11-12T10:53:50.737Z",
    "dateReserved": "2025-04-16T07:20:57.177Z",
    "dateUpdated": "2025-12-01T06:19:33.408Z",
    "state": "PUBLISHED"
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  }
}


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