Linux Kernel Vulnerability - iomap Integrity Payload Issue by Vendor

CVE-2026-89770

What is CVE-2026-89770?

A vulnerability exists in the Linux kernel related to the iomap functionality, where the system might not properly allocate a bio integrity payload due to disabled PI verification on the block device. This oversight could lead to NULL pointer dereferences when attempting to free an integrity payload that was never allocated. Proper checks should be implemented in the process to ensure payload verification is appropriately handled, preventing potential disruptions and improving overall system integrity.

References