CVE-2026-43046

CVE-2026-43046 affects the Linux kernel, specifically btrfs relocation logic where a non-zero drop_progress with drop_level == 0 can be observed in a read-back root_item. The root_item invariant is now validated in the tree-checker when reading from disk: if drop_progress.objectid is non-zero, dr...

CVE-2026-43046 btrfs: reject root items with drop_progress and zero drop_level

In the Linux kernel, the following vulnerability has been resolved: btrfs: reject root items with dropprogress and zero droplevel BUG When recovering relocation at mount time, mergerelocroot and btrfsdropsnapshot both use BUGONlevel == 0 to guard against an impossible state: a non-zero dropprogre...

PT-2026-36463

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.0.0-rc2-next-20260310 Description An issue exists in the btrfs file system where the kernel fails to validate the root item invariant when reading it from disk. Specifically, if drop progress.objectid is...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992613)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992613 advisory. In the Linux kernel, the following vulnerability has been resolved: btrfs: unset reloc control if transaction commit fails in preparetorelocate In...