CVE-2026-43308: Linux Kernel

Medium severity, CVSS 5.5. EPSS: 0.1% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: btrfs: don't BUG() on unexpected delayed ref type in run_one_delayed_ref() There is no need to BUG(), we can just return an error and log an error message.

Affected products

• Linux Linux Kernel: from 2.6.31, before 6.19.6 (fixed in 6.19.6)

Published 2026-05-08. Last modified 2026-06-17.