CVE-2026-63919
CVE CVE-2026-63919EUVD EUVD-2026-45692Published 2026-07-19T14:55:22.000ZLast changed 2026-08-05T12:37:13.000ZCVSS 8.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: xfrm: input: hold netns during deferred transport reinjection Transport-mode reinjection stores a struct net pointer in skb->cb and uses it later from xfrm_trans_reinject(). That pointer must stay valid until the deferred callback runs. Take a netns reference when queueing deferred reinjection work and drop it after the callback completes. Use maybe_get_net() so the queueing path does not revive a namespace that is already being torn down. This keeps the existing workqueue design and fixes the netns lifetime handling in one place for all users of xfrm_trans_queue_net().
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 5.10.259; patch: 0; 7b3801927e52f8621de311277f7fc727635019e7 <2df7059a18afb7d3aee6c36cad5d371c198111d4; 5.6; patch: 6.12.93; 7b3801927e52f8621de311277f7fc727635019e7 <9f67a36e91bb50d358760f381f233913fe5c09f8; 7b3801927e52f8621de311277f7fc727635019e7 <48ce101cd630d6745b6923b5bad8358bc4c119da; patch: 7.1; 7b3801927e52f8621de311277f7fc727635019e7 <55ddfc41451f01c588089cd74957a05311b6f202; 7b3801927e52f8621de311277f7fc727635019e7 <8dfabcba6a943a7a02ebe1e1637c361ba96acbaa; 7b3801927e52f8621de311277f7fc727635019e7 <9f7ebb45a83afc3216e855e57d51bb4bc9b5232e; patch: 6.18.35; patch: 7.0.12; 7b3801927e52f8621de311277f7fc727635019e7 <7ee59eda8820b758ed29e1cd3222359c7b97302c; 7b3801927e52f8621de311277f7fc727635019e7 <c16f74dc1d75d0e2e7670076d5375deda110ebeb; patch: 6.1.176; patch: 6.6.143; patch: 5.15.210
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.