CVE-2026-98081

CVE CVE-2026-98081EUVD EUVD-2026-86911Published 2026-09-25T10:24:18.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: btrfs: zoned: finish active block group cleanup if call_zone_finish() fails do_zone_finish() clears BLOCK_GROUP_FLAG_ZONE_IS_ACTIVE before finishing the zones. If call_zone_finish() then fails it returned early, leaving the now inactive block group on fs_info->zone_active_bgs, leaking its reference, the BTRFS_FS_NEED_ZONE_FINISH waiters are never woken, and as its alloc_offset equals the zone capacity btrfs_zone_finish_one_bg() keeps selecting it, spinning btrfs_zoned_activate_one_bg(). Fall through to the cleanup on failure too and return the error, but keep the block group read-only as its zones are left inconsistent.

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: 6.18.53; d70cbdda75da3f258118a558c087157e073229fb <e1b168a53174b385e3548bfbd079513b22ac240c; patch: 0; patch: 7.3-rc2; d70cbdda75da3f258118a558c087157e073229fb <a18a6b93a2843b9d103d3456bbd4b3f90282a379; patch: 6.12.111; 5.19; d70cbdda75da3f258118a558c087157e073229fb <40370f02a1ca3760f8925ffcbe76eb4d91ea758d; d70cbdda75da3f258118a558c087157e073229fb <36b9cdab44848f25879ca625275c92b007f84653; patch: 7.2.7

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 days

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.