PUB-A-183840808

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Import Source
https://storage.googleapis.com/android-osv-test/PUB-A-183840808.json
JSON Data
https://api.test.osv.dev/v1/vulns/PUB-A-183840808
Aliases
Published
2021-07-01T00:00:00Z
Modified
2025-08-06T16:29:06.385449Z
Summary
[none]
Details

In retrieveptrlimit of verifier.c, there is a possible out of bounds read due to an incorrect bounds check. 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
:2021-07-05

Affected versions

Other

Kernel

Ecosystem specific 

{
    "spl": "2021-07-05",
    "severity": "Moderate",
    "types": [
        "ID"
    ],
    "vanir_signatures": [
        {
            "id": "PUB-A-183840808-6833ac4b",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Line",
            "digest": {
                "line_hashes": [
                    "131279107620880597128958898542620581402",
                    "281121866354856682736356125141732049179",
                    "314176909727751513698772093427800320367",
                    "222067408734644532739403530031819964808",
                    "211363170638768455415056806454467793321",
                    "144544375619070072392668870337686575889",
                    "182335119627226422490639640347773561723",
                    "197027256484181379865102550427088873258",
                    "53489083422022700743345050693036682854",
                    "211687179292011964753669552695884888375"
                ],
                "threshold": 0.9
            },
            "target": {
                "file": "kernel/bpf/verifier.c"
            },
            "source": "https://android.googlesource.com/kernel/common/+/10d2bb2e6b1d8c4576c56a748f697dbeb8388899"
        },
        {
            "id": "PUB-A-183840808-8c51482b",
            "deprecated": false,
            "signature_version": "v1",
            "signature_type": "Function",
            "digest": {
                "function_hash": "18717670090766123846112546191246011907",
                "length": 584.0
            },
            "target": {
                "file": "kernel/bpf/verifier.c",
                "function": "retrieve_ptr_limit"
            },
            "source": "https://android.googlesource.com/kernel/common/+/10d2bb2e6b1d8c4576c56a748f697dbeb8388899"
        }
    ],
    "fixes": [
        "https://android.googlesource.com/kernel/common/+/10d2bb2e6b1d8c4576c56a748f697dbeb8388899"
    ]
}