ASB-A-196926917

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Import Source
https://storage.googleapis.com/android-osv-test/ASB-A-196926917.json
JSON Data
https://api.test.osv.dev/v1/vulns/ASB-A-196926917
Aliases
Published
2021-11-01T00:00:00Z
Modified
2025-08-06T16:29:06.385449Z
Summary
[none]
Details

In unixscmtoskb of afunix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege 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
:2021-11-05

Affected versions

Other

Kernel

Ecosystem specific 

{
    "types": [
        "EoP"
    ],
    "spl": "2021-11-05",
    "vanir_signatures": [
        {
            "id": "ASB-A-196926917-515bd5b5",
            "digest": {
                "line_hashes": [
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                    "126356142158529450982823959694424517468",
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                    "61015202346409625043268567667128470858",
                    "319719393801817372111466737393311031907"
                ],
                "threshold": 0.9
            },
            "signature_version": "v1",
            "target": {
                "file": "net/unix/af_unix.c"
            },
            "source": "https://android.googlesource.com/kernel/common/+/cbcf01128d0a92e131bd09f1688fe032480b65ca",
            "signature_type": "Line",
            "deprecated": false
        },
        {
            "id": "ASB-A-196926917-d9513ecd",
            "digest": {
                "length": 3152.0,
                "function_hash": "153461108373016994627573252914252607553"
            },
            "signature_version": "v1",
            "target": {
                "file": "net/unix/af_unix.c",
                "function": "unix_stream_read_generic"
            },
            "source": "https://android.googlesource.com/kernel/common/+/cbcf01128d0a92e131bd09f1688fe032480b65ca",
            "signature_type": "Function",
            "deprecated": false
        },
        {
            "id": "ASB-A-196926917-ed2800bf",
            "digest": {
                "length": 1919.0,
                "function_hash": "222800221791782858025618860169069511688"
            },
            "signature_version": "v1",
            "target": {
                "file": "net/unix/af_unix.c",
                "function": "unix_dgram_recvmsg"
            },
            "source": "https://android.googlesource.com/kernel/common/+/cbcf01128d0a92e131bd09f1688fe032480b65ca",
            "signature_type": "Function",
            "deprecated": false
        }
    ],
    "severity": "High",
    "fixes": [
        "https://android.googlesource.com/kernel/common/+/cbcf01128d0a92e131bd09f1688fe032480b65ca"
    ]
}