CVE-2021-47548

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Source
https://cve.org/CVERecord?id=CVE-2021-47548
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47548.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-47548
Downstream
Related
Published
2024-05-24T15:15:19.693Z
Modified
2026-03-15T22:43:15.309799Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

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

ethernet: hisilicon: hns: hnsdsafmisc: fix a possible array overflow in hnsdsafgesrstby_port()

The if statement: if (port >= DSAFGENUM) return;

limits the value of port less than DSAFGENUM (i.e., 8). However, if the value of port is 6 or 7, an array overflow could occur: portrstoff = dsafdev->maccb[port]->portrstoff;

because the length of dsafdev->maccb is DSAFMAXPORT_NUM (i.e., 6).

To fix this possible array overflow, we first check port and if it is greater than or equal to DSAFMAXPORT_NUM, the function returns.

References

Affected packages

Git /

Affected ranges

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47548.json"
unresolved_ranges 
[
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "fixed": "4.9.292"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.10"
            },
            {
                "fixed": "4.14.257"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.15"
            },
            {
                "fixed": "4.19.220"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "4.20"
            },
            {
                "fixed": "5.4.164"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.5"
            },
            {
                "fixed": "5.10.84"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "5.11"
            },
            {
                "fixed": "5.15.7"
            }
        ]
    },
    {
        "events": [
            {
                "introduced": "0"
            },
            {
                "last_affected": "5.16-rc1"
            }
        ]
    }
]