CVE-2021-47367

Published: May 21, 2024

Modified: May 11, 2026

PUBLISHED

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.

Vendor	Product	Versions
Linux	Linux	affected `fb32856b16ad9d5bcd75b76a274e2c515ac7b9d7 - < f020bb63b5d2e5576acadd10e158fe3b04af67ba` affected `fb32856b16ad9d5bcd75b76a274e2c515ac7b9d7 - < afd92d82c9d715fb97565408755acad81573591a`
Linux	Linux	affected `5.13` unaffected `0 - < 5.13` unaffected `5.14.9 - <= 5.14.` unaffected `5.15 - <= `

References

https://git.kernel.org/stable/c/f020bb63b5d2e5576acadd10e158fe3b04af67ba

https://git.kernel.org/stable/c/afd92d82c9d715fb97565408755acad81573591a

Security Training

Train your team to recognize and prevent security threats with our comprehensive security awareness program.

Start Training

Vulnerability Scanning

Discover vulnerabilities in your applications and infrastructure before attackers do.

Scan Now

CVE-2021-47367

Description

Affected Products

References