CVE-2021-47548
- Source
- https://cve.org/CVERecord?id=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
- 2026-03-13T05:20:48Z
- 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: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
The if statement: if (port >= DSAF_GE_NUM) return;
limits the value of port less than DSAF_GE_NUM (i.e., 8). However, if the value of port is 6 or 7, an array overflow could occur: port_rst_off = dsaf_dev->mac_cb[port]->port_rst_off;
because the length of dsaf_dev->mac_cb is DSAF_MAX_PORT_NUM (i.e., 6).
To fix this possible array overflow, we first check port and if it is greater than or equal to DSAF_MAX_PORT_NUM, the function returns.
- References
-
- https://git.kernel.org/stable/c/99bb25cb6753beaf2c2bc37927c2ecc0ceff3f6d
- https://git.kernel.org/stable/c/a66998e0fbf213d47d02813b9679426129d0d114
- https://git.kernel.org/stable/c/abbd5faa0748d0aa95d5191d56ff7a17a6275bd1
- https://git.kernel.org/stable/c/dd07f8971b81ad98cc754b179b331b57f35aa1ff
- https://git.kernel.org/stable/c/fc7ffa7f10b9454a86369405d9814bf141b30627
- https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803
- https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b
Affected packages
Git /
Database specific
source
"https://storage.googleapis.com/osv-test-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"
}
]
}
]