VulnerabilityAnalyzed
CVE-2021-47367
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.
MEDIUM 5.5EPSS 0.23%
Does this matter?
Lower severity and a low EPSS score (0.23%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.23% probability · 13th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/afd92d82c9d715fb97565408755acad81573591aPatch
- https://git.kernel.org/stable/c/f020bb63b5d2e5576acadd10e158fe3b04af67baPatch
- https://git.kernel.org/stable/c/afd92d82c9d715fb97565408755acad81573591aPatch
- https://git.kernel.org/stable/c/f020bb63b5d2e5576acadd10e158fe3b04af67baPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.