PUB-A-190877279

See a problem?
Import Source
https://storage.googleapis.com/android-osv/PUB-A-190877279.json
JSON Data
https://api.osv.dev/v1/vulns/PUB-A-190877279
Aliases
Published
2021-10-01T00:00:00Z
Modified
2026-09-22T15:22:15Z
Summary
[none]
Details

In __bpf_ringbuf_reserve of ringbuf.c, there is a possible out of bounds write due to a missing bounds check. 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
:2021-10-05

Affected versions

Other
Kernel

Ecosystem specific 

{
    "fixes":  [
        "https://android.googlesource.com/kernel/common/+/4b81ccebaeee885ab1aa1438133f2991e3a2b6ea"
    ],
    "severity":  "Moderate",
    "spl":  "2021-10-05",
    "types":  [
        "EoP"
    ],
    "vanir_signatures":  [
        {
            "deprecated":  false,
            "digest":  {
                "function_hash":  "183729967604640829626352513401008393136",
                "length":  855
            },
            "id":  "PUB-A-190877279-be596cc4",
            "signature_type":  "Function",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/4b81ccebaeee885ab1aa1438133f2991e3a2b6ea",
            "target":  {
                "file":  "kernel/bpf/ringbuf.c",
                "function":  "__bpf_ringbuf_reserve"
            }
        },
        {
            "deprecated":  false,
            "digest":  {
                "line_hashes":  [
                    "192741236581112911028087146785749077645",
                    "178244520072335451936189270906947903571",
                    "301616955728519727737405711715100561842",
                    "263076874577890106306520638709279565582"
                ],
                "threshold":  0.9
            },
            "id":  "PUB-A-190877279-e9dc1edb",
            "signature_type":  "Line",
            "signature_version":  "v1",
            "source":  "https://android.googlesource.com/kernel/common/+/4b81ccebaeee885ab1aa1438133f2991e3a2b6ea",
            "target":  {
                "file":  "kernel/bpf/ringbuf.c"
            }
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/android-osv/PUB-A-190877279.json"