CVE-2026-68154
CVE CVE-2026-68154EUVD EUVD-2026-55540Published 2026-08-10T11:59:20.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: libceph: reject zero bucket types in crush_decode CRUSH bucket type 0 is reserved for devices. The mapper relies on that invariant and uses type 0 to identify leaf devices. If crush_decode() accepts a bucket with type 0, a malformed CRUSH map can make the mapper treat a negative bucket ID as a device and pass it to is_out(), which then indexes the OSD weight array with a negative value. Reject zero bucket types while decoding the CRUSH map so the invalid state never reaches the mapper.
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 f24e9980eb860d8600cbe5ef3d2fd9295320d229 <70998f91030ee083ecb336a1dff0701c20a38081; f24e9980eb860d8600cbe5ef3d2fd9295320d229 <05f90284223381005d6bcddab3fda4a97f9c3401; patch: 6.6.148; patch: 6.12.101; f24e9980eb860d8600cbe5ef3d2fd9295320d229 <b8a9fb6bf806f9c4891e71ae1beab0c07c23a877; patch: 7.1.6; f24e9980eb860d8600cbe5ef3d2fd9295320d229 <826cd1de5802fd392922785f9b64d76e65d2a100; patch: 0; f24e9980eb860d8600cbe5ef3d2fd9295320d229 <3b2f1937f5fce8b7dd5432e7693e3cc8b5eece56; 2.6.34; patch: 7.2-rc5; patch: 6.18.42
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.