vulnerability
Red Hat: CVE-2021-47367: kernel: virtio-net: fix pages leaking when building skb in big mode
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:L/Au:M/C:C/I:N/A:N) | May 21, 2024 | Jul 9, 2025 | Jul 10, 2025 |
Severity
4
CVSS
(AV:L/AC:L/Au:M/C:C/I:N/A:N)
Published
May 21, 2024
Added
Jul 9, 2025
Modified
Jul 10, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
virtio-net: fix pages leaking when building skb in big mode
We try to use build_skb() if we had sufficient tailroom. But we forget
to release the unused pages chained via private in big mode which will
leak pages. Fixing this by release the pages after building the skb in
big mode.
Solution
no-fix-redhat-rpm-package
References
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