CVE-2022-4696

There exists a use-after-free vulnerability in the Linux kernel through iouring and the IORINGOPSPLICE operation. If IORINGOPSPLICE is missing the IOWQWORKFILES flag, which signals that the operation won't use current->nsproxy, so its reference counter is not increased. This assumption is not always true as calling iosplice on specific files will call the getuts function which will use current->nsproxy leading to invalidly decreasing its reference counter later causing the use-after-free vulnerability. We recommend upgrading to version 5.10.160 or above

References

Affected packages

Git /

Affected ranges

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-4696.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "5.10"
            },
            {
                "fixed": "5.12"
            }
        ]
    }
]