PUB-A-161010552

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Import Source
https://storage.googleapis.com/android-osv/PUB-A-161010552.json
JSON Data
https://api.osv.dev/v1/vulns/PUB-A-161010552
Aliases
  • A-161010552
  • CVE-2021-39792
Published
2022-03-01T00:00:00Z
Modified
2026-01-21T16:24:30.787107Z
Summary
[none]
Details

In usbgadgetgiveback_request of core.c, there is a possible use after free out of bounds read due to a race condition. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation.

References

Affected packages

Android / :linux_kernel:

Package

Name
:linux_kernel:

Affected ranges

Type
ECOSYSTEM
Events
Introduced
:0
Fixed
:2022-03-05

Affected versions

Other

Kernel

Ecosystem specific 

{
    "fixes": [
        "https://android.googlesource.com/kernel/common/+/575a552ac7c6b"
    ],
    "vanir_signatures": [
        {
            "signature_version": "v1",
            "source": "https://android.googlesource.com/kernel/common/+/575a552ac7c6b",
            "deprecated": false,
            "digest": {
                "length": 411.0,
                "function_hash": "100410976886787197906451013634522742914"
            },
            "signature_type": "Function",
            "id": "PUB-A-161010552-0e279616",
            "target": {
                "function": "acc_function_unbind",
                "file": "drivers/usb/gadget/function/f_accessory.c"
            }
        },
        {
            "signature_version": "v1",
            "source": "https://android.googlesource.com/kernel/common/+/575a552ac7c6b",
            "deprecated": false,
            "digest": {
                "line_hashes": [
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                    "180875822491025722831554686199663901729",
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                    "228326681755720983503190651504840756417",
                    "250118894154258636393811237955625185243"
                ],
                "threshold": 0.9
            },
            "signature_type": "Line",
            "id": "PUB-A-161010552-76ea9a50",
            "target": {
                "file": "drivers/usb/gadget/function/f_accessory.c"
            }
        },
        {
            "signature_version": "v1",
            "source": "https://android.googlesource.com/kernel/common/+/575a552ac7c6b",
            "deprecated": false,
            "digest": {
                "length": 1434.0,
                "function_hash": "241108072870579792262434467224001311540"
            },
            "signature_type": "Function",
            "id": "PUB-A-161010552-8e087dff",
            "target": {
                "function": "create_bulk_endpoints",
                "file": "drivers/usb/gadget/function/f_accessory.c"
            }
        },
        {
            "signature_version": "v1",
            "source": "https://android.googlesource.com/kernel/common/+/575a552ac7c6b",
            "deprecated": false,
            "digest": {
                "length": 1523.0,
                "function_hash": "237090920825579070897266722571206435477"
            },
            "signature_type": "Function",
            "id": "PUB-A-161010552-c06d3503",
            "target": {
                "function": "acc_read",
                "file": "drivers/usb/gadget/function/f_accessory.c"
            }
        }
    ],
    "types": [
        "ID"
    ],
    "severity": "Moderate",
    "spl": "2022-03-05"
}

Database specific

source

"https://storage.googleapis.com/android-osv/PUB-A-161010552.json"