CVE-2021-47159
See a problem?- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-47159
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47159.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-47159
- Related
- Published
- 2024-03-25T10:15:08Z
- Modified
- 2024-09-11T02:00:06Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: dsa: fix a crash if ->getssetcount() fails
If ds->ops->getssetcount() fails then it "count" is a negative error code such as -EOPNOTSUPP. Because "i" is an unsigned int, the negative error code is type promoted to a very high value and the loop will corrupt memory until the system crashes.
Fix this by checking for error codes and changing the type of "i" to just int.
- References
-
- https://git.kernel.org/stable/c/0f2cb08c57edefb0e7b5045e0e3e9980a3d3aa37
- https://git.kernel.org/stable/c/7b22466648a4f8e3e94f57ca428d1531866d1373
- https://git.kernel.org/stable/c/a269333fa5c0c8e53c92b5a28a6076a28cde3e83
- https://git.kernel.org/stable/c/caff86f85512b8e0d9830e8b8b0dfe13c68ce5b6
- https://git.kernel.org/stable/c/ce5355f140a7987011388c7e30c4f8fbe180d3e8
- https://security-tracker.debian.org/tracker/CVE-2021-47159
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