CVE-2026-53021

A flaw was found in the Linux kernel's SCSI target core. The sbc_execute_unmap() function, which handles UNMAP operations, is vulnerable to an integer overflow. This vulnerability occurs because the bounds check for the Logical Block Address (LBA) and range does not prevent a 64-bit overflow. An attacker could potentially exploit this to cause a denial of service (DoS) or trigger unintended memory access.

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.