CVE-2026-90333

A flaw was found in the Linux kernel's device-mapper integrity (dm-integrity) target. This vulnerability allows an attacker with raw write access to the backing device, but without the integrity key, to bypass data integrity checks. By stamping any block with a specially crafted discard filler tag, the attacker can make the system treat the block as authentically discarded, leading to a data integrity bypass. This could result in unauthorized data manipulation or corruption.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.