CVE-2026-89606
CVE CVE-2026-89606EUVD EUVD-2026-76518Published 2026-09-11T19:45:08.000ZLast changed 2026-09-14T12:01:26.000ZCVSS 7.8
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: ecryptfs: reject too-small tag 70 packets ecryptfs_parse_tag_70_packet() subtracts fixed metadata fields from the parsed packet body size to derive the encrypted filename size. A malformed packet with a body smaller than those fixed fields can underflow that size calculation. Reject tag 70 packets before the subtraction unless the body contains the signature, cipher code, and at least one byte of encrypted filename data.
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: 6.6.157; patch: 5.15.221; patch: 6.12.109; 9c79f34f7ee71cd28272332b424ca64b2be006ab <2e5afed9503dd1d85004c09503adc2cb584c0188; patch: 0; 9c79f34f7ee71cd28272332b424ca64b2be006ab <9d88391bbed76eb091cddd50b0af87b1c6f22589; 9c79f34f7ee71cd28272332b424ca64b2be006ab <e97bbe1b2bd82ec2ae37ad2e4965b4d3e78bbf7f; patch: 5.10.270; 9c79f34f7ee71cd28272332b424ca64b2be006ab <d2869768eab5648e6edc05f47e0716e5328e6681; patch: 7.2.4; 2.6.29; 9c79f34f7ee71cd28272332b424ca64b2be006ab <5668121974eb7f7aa82793a9d0d13abadb8904dc; 9c79f34f7ee71cd28272332b424ca64b2be006ab <b31da1ecf13929a8d7f8d2727843d2fe35396b75; patch: 6.18.50; 9c79f34f7ee71cd28272332b424ca64b2be006ab <414a0f04feb06f03523edf7e2a8be1d7f1a9b160; patch: 7.3-rc1; 9c79f34f7ee71cd28272332b424ca64b2be006ab <df5f375a6151ef71f636da044bcef90c26697255; patch: 6.1.188
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.