PUB-A-168034487

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Import Source

https://storage.googleapis.com/android-osv/PUB-A-168034487.json

JSON Data

https://api.osv.dev/v1/vulns/PUB-A-168034487

Aliases

A-168034487
CVE-2021-0606

Published

2021-06-01T00:00:00Z

Modified

2025-09-22T14:58:13.992659Z

Summary

[none]

Details

In drmsyncobjhandletofd of drm_syncobj.c, there is a possible use after free due to incorrect refcounting. 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

:2021-06-05

Affected versions

Other

Kernel

Ecosystem specific

{
    "severity": "Moderate",
    "fixes": [
        "https://android.googlesource.com/kernel/common/+/328ec6286a78a71500b74255448e8f3c83d2b2c4"
    ],
    "types": [
        "EoP"
    ],
    "vanir_signatures": [
        {
            "id": "PUB-A-168034487-000891dc",
            "digest": {
                "function_hash": "32970504086864143055271838817190593484",
                "length": 490.0
            },
            "signature_version": "v1",
            "deprecated": false,
            "source": "https://android.googlesource.com/kernel/common/+/328ec6286a78a71500b74255448e8f3c83d2b2c4",
            "signature_type": "Function",
            "target": {
                "function": "drm_syncobj_handle_to_fd",
                "file": "drivers/gpu/drm/drm_syncobj.c"
            }
        },
        {
            "id": "PUB-A-168034487-4c53ecea",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "283918458524159940181209964318280051069",
                    "109175134473222033400338055823651282914",
                    "336079167343984393011812395976112914968",
                    "171007728591941759867591366957612582902"
                ]
            },
            "signature_version": "v1",
            "deprecated": false,
            "source": "https://android.googlesource.com/kernel/common/+/328ec6286a78a71500b74255448e8f3c83d2b2c4",
            "signature_type": "Line",
            "target": {
                "file": "drivers/gpu/drm/drm_syncobj.c"
            }
        }
    ],
    "spl": "2021-06-05"
}