CVE-2022-2639

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Source
https://cve.org/CVERecord?id=CVE-2022-2639
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-2639.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-2639
Downstream
BELL (1)
CLSA (7)
DEBIAN (1)
OESA (2)
RHSA (17)
RLSA (2)
SUSE (15)
UBUNTU (1)
Related
ALSA (4)
SUSE (15)
Published
2022-09-01T20:32:54Z
Modified
2026-10-22T15:53:16Z
Summary
[none]
Details

An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Database specific 
{
    "cna_assigner": "redhat",
    "cwe_ids": [
        "CWE-192"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/2xxx/CVE-2022-2639.json"
}
References

Affected packages

Git / github.com/torvalds/linux

Affected ranges

Type
GIT
Repo
https://github.com/torvalds/linux
Events
Introduced
4b0986a3613c92f4ec1bdc7f60ec66fea135991f
Fixed
cefa91b2332d7009bc0be5d951d6cbbf349f90f8
Database specific
Show details 
{
    "extracted_events": [
        {
            "range": [
                {
                    "introduced": "kernel 5.18"
                },
                {
                    "last_affected": "kernel 5.18"
                }
            ],
            "source": "AFFECTED_FIELD",
            "strategy": "StandaloneSingleVersion"
        },
        {
            "range": [
                {
                    "fixed": "cefa91b2332d7009bc0be5d951d6cbbf349f90f8"
                }
            ],
            "source": "REFERENCES_COMMIT"
        }
    ]
}

Affected versions

kernel 5.*
kernel 5.18

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-2639.json"
vanir_signatures 
[
    {
        "deprecated": false,
        "digest": {
            "line_hashes": [
                "65425590785192723994623587729074796049",
                "71302186463290615025867454209150422709",
                "279362120354327615894429077599479133076",
                "332522869488065027272036854372203801210"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2022-2639-9d6196ce",
        "signature_type": "Line",
        "signature_version": "v1",
        "source": "https://github.com/torvalds/linux/commit/cefa91b2332d7009bc0be5d951d6cbbf349f90f8",
        "target": {
            "file": "net/openvswitch/flow_netlink.c"
        }
    },
    {
        "deprecated": false,
        "digest": {
            "function_hash": "30959647629553362889335068607156747230",
            "length": 981
        },
        "id": "CVE-2022-2639-c1d2079a",
        "signature_type": "Function",
        "signature_version": "v1",
        "source": "https://github.com/torvalds/linux/commit/cefa91b2332d7009bc0be5d951d6cbbf349f90f8",
        "target": {
            "file": "net/openvswitch/flow_netlink.c",
            "function": "reserve_sfa_size"
        }
    }
]
vanir_signatures_modified 
"2026-10-22T15:53:16Z"