CVE-2020-36791

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Source
https://cve.org/CVERecord?id=CVE-2020-36791
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36791.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-36791
Downstream
Related
Published
2025-05-07T14:15:28.513Z
Modified
2026-03-23T05:04:58.114399960Z
Severity
  • 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
Summary
[none]
Details

In the Linux kernel, the following vulnerability has been resolved:

netsched: keep allochash updated after hash allocation

In commit 599be01ee567 ("netsched: fix an OOB access in clstcindex") I moved cp->hash calculation before the first tcindexallocperfecthash(), but cp->allochash is left untouched. This difference could lead to another out of bound access.

cp->allochash should always be the size allocated, we should update it after this tcindexallocperfecthash().

References

Affected packages

Git /

Affected ranges

Database specific

unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "4.4.214"
            },
            {
                "fixed": "4.4.218"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.9.214"
            },
            {
                "fixed": "4.9.218"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.14.171"
            },
            {
                "fixed": "4.14.175"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.19.103"
            },
            {
                "fixed": "4.19.114"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.4.19"
            },
            {
                "fixed": "5.4.29"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.5.3"
            },
            {
                "fixed": "5.5.14"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.6-rc1"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.6-rc2"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.6-rc3"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.6-rc4"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.6-rc5"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.6-rc6"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.6-rc7"
            }
        ]
    }
]
source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-36791.json"