ASB-A-183188047

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Import Source
https://storage.googleapis.com/android-osv-test/ASB-A-183188047.json
JSON Data
https://api.test.osv.dev/v1/vulns/ASB-A-183188047
Aliases
Published
2021-08-01T00:00:00Z
Modified
2025-08-06T16:29:06.385449Z
Summary
[none]
Details

In fastrpcinternalinvoke of drivers/misc/fastrpc.c, there is a possible way for user-mode processes to send fastrpc kernel requests due to a missing permission check. This could lead to local escalation of privilege with no additional 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
:2021-08-05

Affected versions

Other

Kernel

Ecosystem specific 

{
    "severity": "High",
    "fixes": [
        "https://android.googlesource.com/kernel/common/+/20c40794eb85ea29852d7bc37c55713802a543d6"
    ],
    "vanir_signatures": [
        {
            "signature_type": "Line",
            "target": {
                "file": "drivers/misc/fastrpc.c"
            },
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "2482426716837670807191507678331904204",
                    "18618756952759906251121912994584143389",
                    "47795433000481475736428243376821800843"
                ]
            },
            "deprecated": false,
            "signature_version": "v1",
            "source": "https://android.googlesource.com/kernel/common/+/20c40794eb85ea29852d7bc37c55713802a543d6",
            "id": "ASB-A-183188047-48700cdd"
        },
        {
            "signature_type": "Function",
            "target": {
                "function": "fastrpc_internal_invoke",
                "file": "drivers/misc/fastrpc.c"
            },
            "digest": {
                "length": 1067.0,
                "function_hash": "30786217320439064280331192377014023502"
            },
            "deprecated": false,
            "signature_version": "v1",
            "source": "https://android.googlesource.com/kernel/common/+/20c40794eb85ea29852d7bc37c55713802a543d6",
            "id": "ASB-A-183188047-ecbbde1b"
        }
    ],
    "spl": "2021-08-05",
    "types": [
        "EoP"
    ]
}