CVE-2026-72155

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description An issue exists in the mtd: spi-nor: swp component where attempting to unlock only the specific blocks that are currently locked fails if those are the first few blocks of the device. This occurs because the unlock() function incorrectly calculates the lock len variable as a positive number instead of 0 when both can be top and can be bottom conditions are true, leading to a failure in the unlocking process.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.