CVE-2021-47087

Pointer to the allocated pages (struct page *page) has already progressed towards the end of allocation. It is incorrect to perform _freepages(page, order) using this pointer as we would free any arbitrary pages. Fix this by stop modifying the page pointer.

References

Affected packages

Git /

Affected ranges

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47087.json"

unresolved_ranges

[
    {
        "events": [
            {
                "introduced": "5.4.140"
            },
            {
                "fixed": "5.4.169"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.10.58"
            },
            {
                "fixed": "5.10.89"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.14"
            },
            {
                "fixed": "5.15.12"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.16-rc1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.16-rc2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.16-rc3"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.16-rc4"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.16-rc5"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.16-rc6"
            }
        ]
    }
]