PUB-A-161010552

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Import Source
https://storage.googleapis.com/android-osv/PUB-A-161010552.json
JSON Data
https://api.osv.dev/v1/vulns/PUB-A-161010552
Aliases
  • A-161010552
  • CVE-2021-39792
Published
2022-03-01T00:00:00Z
Modified
2026-09-24T20:28:40Z
Summary
[none]
Details

In usb_gadget_giveback_request of core.c, there is a possible use after free out of bounds read 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
:2022-03-05

Affected versions

Other
Kernel

Ecosystem specific 

{
    "fixes":  [
        "https://android.googlesource.com/kernel/common/+/575a552ac7c6b"
    ],
    "severity":  "Moderate",
    "spl":  "2022-03-05",
    "types":  [
        "ID"
    ],
    "vanir_signatures":  [
        {
            "deprecated":  false,
            "digest":  {
                "function_hash":  "100410976886787197906451013634522742914",
                "length":  411
            },
            "id":  "PUB-A-161010552-0e279616",
            "signature_type":  "Function",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/575a552ac7c6b",
            "target":  {
                "file":  "drivers/usb/gadget/function/f_accessory.c",
                "function":  "acc_function_unbind"
            }
        },
        {
            "deprecated":  false,
            "digest":  {
                "line_hashes":  [
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                    "180875822491025722831554686199663901729",
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                    "228326681755720983503190651504840756417",
                    "250118894154258636393811237955625185243"
                ],
                "threshold":  0.9
            },
            "id":  "PUB-A-161010552-76ea9a50",
            "signature_type":  "Line",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/575a552ac7c6b",
            "target":  {
                "file":  "drivers/usb/gadget/function/f_accessory.c"
            }
        },
        {
            "deprecated":  false,
            "digest":  {
                "function_hash":  "241108072870579792262434467224001311540",
                "length":  1434
            },
            "id":  "PUB-A-161010552-8e087dff",
            "signature_type":  "Function",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/575a552ac7c6b",
            "target":  {
                "file":  "drivers/usb/gadget/function/f_accessory.c",
                "function":  "create_bulk_endpoints"
            }
        },
        {
            "deprecated":  false,
            "digest":  {
                "function_hash":  "237090920825579070897266722571206435477",
                "length":  1523
            },
            "id":  "PUB-A-161010552-c06d3503",
            "signature_type":  "Function",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/575a552ac7c6b",
            "target":  {
                "file":  "drivers/usb/gadget/function/f_accessory.c",
                "function":  "acc_read"
            }
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/android-osv/PUB-A-161010552.json"