ASB-A-231494876

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Import Source
https://storage.googleapis.com/android-osv-test/ASB-A-231494876.json
JSON Data
https://api.test.osv.dev/v1/vulns/ASB-A-231494876
Aliases
Published
2022-09-01T00:00:00Z
Modified
2026-03-11T06:19:28Z
Summary
[none]
Details

In fs, there is a possible use-after-free due to a race condition in io_uring timeouts. This could lead to local escalation of privileges 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
:2022-09-05

Affected versions

Other
Kernel

Ecosystem specific 

{
    "fixes":  [
        "https://android.googlesource.com/kernel/common/+/4b895c556fa46acaa95bf27c95e4f9449ff4d17a"
    ],
    "severity":  "High",
    "spl":  "2022-09-05",
    "types":  [
        "EoP"
    ],
    "vanir_signatures":  [
        {
            "deprecated":  false,
            "digest":  {
                "function_hash":  "43074021457514687395697517183641958809",
                "length":  617
            },
            "id":  "ASB-A-231494876-3c10ab71",
            "signature_type":  "Function",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/4b895c556fa46acaa95bf27c95e4f9449ff4d17a",
            "target":  {
                "file":  "fs/io_uring.c",
                "function":  "io_flush_timeouts"
            }
        },
        {
            "deprecated":  false,
            "digest":  {
                "line_hashes":  [
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                    "9373411352586735479019573266403788983",
                    "114763145292153712131505117664994001068",
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                    "2877787691440934636922516567433787222",
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                    "305116825448308969505468737967983900159",
                    "139631206780381122850498719802233854674",
                    "172401547407543424648223052855122691790"
                ],
                "threshold":  0.9
            },
            "id":  "ASB-A-231494876-72f1a540",
            "signature_type":  "Line",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/4b895c556fa46acaa95bf27c95e4f9449ff4d17a",
            "target":  {
                "file":  "fs/io_uring.c"
            }
        },
        {
            "deprecated":  false,
            "digest":  {
                "function_hash":  "34908908615115264513526277678453656086",
                "length":  882
            },
            "id":  "ASB-A-231494876-aea939c2",
            "signature_type":  "Function",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/4b895c556fa46acaa95bf27c95e4f9449ff4d17a",
            "target":  {
                "file":  "fs/io_uring.c",
                "function":  "io_timeout_prep"
            }
        },
        {
            "deprecated":  false,
            "digest":  {
                "function_hash":  "250832103600064856629235858201995071592",
                "length":  703
            },
            "id":  "ASB-A-231494876-d5578fe6",
            "signature_type":  "Function",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/4b895c556fa46acaa95bf27c95e4f9449ff4d17a",
            "target":  {
                "file":  "fs/io_uring.c",
                "function":  "io_link_timeout_fn"
            }
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/android-osv-test/ASB-A-231494876.json"