PUB-A-160822094

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Import Source
https://storage.googleapis.com/android-osv/PUB-A-160822094.json
JSON Data
https://api.osv.dev/v1/vulns/PUB-A-160822094
Aliases
Published
2021-12-01T00:00:00Z
Modified
2024-08-29T07:12:50.479357Z
Summary
Race condition in USB gadget configfs
Details

In gadgetdevdescUDCshow of configfs.c, there is a possible disclosure of kernel heap memory 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
:2021-12-05

Affected versions

Other

Kernel

Ecosystem specific 

{
    "vanir_signatures": [
        {
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "79247195589095590568277055161225283220",
                    "141414295815732894816063577265325991000",
                    "86473914779299051518878460939143540079",
                    "19493245227855791870427344486394842495",
                    "334520433686633874808459603621294536512"
                ]
            },
            "id": "PUB-A-160822094-b4a48689",
            "source": "https://android.googlesource.com/kernel/common/+/64e6bbfff52db4bf6785fab9cffab850b2de6870",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "drivers/usb/gadget/configfs.c",
                "truncated_path_level": 1.0
            },
            "signature_type": "Line"
        },
        {
            "digest": {
                "length": 178.0,
                "function_hash": "337555850625797397627801719672181788232"
            },
            "id": "PUB-A-160822094-f2e060a8",
            "source": "https://android.googlesource.com/kernel/common/+/64e6bbfff52db4bf6785fab9cffab850b2de6870",
            "deprecated": false,
            "signature_version": "v1",
            "target": {
                "file": "drivers/usb/gadget/configfs.c",
                "truncated_path_level": 1.0,
                "function": "gadget_dev_desc_UDC_show"
            },
            "signature_type": "Function"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/kernel/common/+/64e6bbfff52db4bf6785fab9cffab850b2de6870"
    ],
    "spl": "2021-12-05",
    "severity": "Moderate",
    "types": [
        "ID"
    ]
}