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
- 2025-07-01T13:10:41.877014Z
- 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
-
- https://git.kernel.org/stable/c/22519eff7df2d88adcc2568d86046ce1e2b52803
- https://git.kernel.org/stable/c/948968f8747650447c8f21c9fdba0e1973be040b
- 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://security-tracker.debian.org/tracker/CVE-2021-47548
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source