CVE-2021-47548

Source
https://nvd.nist.gov/vuln/detail/CVE-2021-47548
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47548.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-47548
Downstream
Related
Published
2024-05-24T15:15:19Z
Modified
2025-08-09T20:01:26Z
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