CVE-2026-80642

CVE CVE-2026-80642EUVD EUVD-2026-67518Published 2026-08-28T06:48:53.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: liveupdate: Reference count incoming FLB data Increment the incoming FLB refcount in liveupdate_flb_get_incoming() so that the FLB structure cannot be freed while the caller is actively using it. Add an additional liveupdate_flb_put_incoming() function so the caller can explicitly indicate when it is done using the FLB data. During a Live Update, a subsystem might need to hold onto the incoming File-Lifecycle-Bound (FLB) data for an extended period, such as during device enumeration. Incrementing the reference count guarantees that the data remains valid and accessible until the subsystem releases it, preventing future use-after-free bugs.

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: 0; 7.0; cab056f2aae7250af50e503b81a80dfc567a1acd <725ada0273a0f48a67fd59cc518d7f8055fe3d5c; patch: 7.2; patch: 7.1.5; cab056f2aae7250af50e503b81a80dfc567a1acd <d8e47bd066d7e626f9f45d416182d585b7e18b9b

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

Patchlage 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.