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CVE PROGRAM SOURCE RECORD5.5 Medium

CVE-2021-47367

virtio-net: fix pages leaking when building skb in big mode

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • fb32856b16ad9d5bcd75b76a274e2c515ac7b9d7 to < f020bb63b5d2e5576acadd10e158fe3b04af67baaffected
  • fb32856b16ad9d5bcd75b76a274e2c515ac7b9d7 to < afd92d82c9d715fb97565408755acad81573591aaffected

Linux Linux

Default version status: affected

  • 5.13affected
  • 0 to < 5.13unaffected
  • 5.14.9 to ≤ 5.14.*unaffected
  • 5.15 to ≤ *unaffected

References